ヸヶヮユノレヸビヮモノパブ
ビパビヒハチピ
Cautions for Your Safety
Read the manual carefully before installing, running and maintenance for proper operation.
Before using, master the knowledge of the equipment, safety information and all of other
notes. This manual uses two safety flags to indicate different levels of danger.
A handling error could cause serious physical injury to an
operator and in the worst case could even be fatal.
●Apply appropriate personal protective equipment (PPE) and follow safe electrical work
practices. In the USA, see NFPA 70E.
●Always take precautions to ensure the overall safety of your system, so that the whole
system remains safe in the event of failure of this product or other external factor.
●Do not use this product in areas with inflammable gas. It could lead to an explosion.
●Exposing this product to excessive heat or open flames could cause damage to the
lithium battery or other electronic parts.
●Do not open the secondary side of CT during power on the primary side current.
It might cause electric shock or CT breakdown.
WARNING
A handling error could cause serious physical injury to an operator
or damage to the equipment.
●To prevent abnormal exothermic heat or smoke generation, use this product at the
values less than the maximum of the characteristics and performance that are assured
in these specifications.
●Do not dismantle or remodel the product. It could lead to abnormal exothermic heat or
smoke generation.
●Do not touch the terminal while turning on electricity. It could lead to an electric shock.
●Use the external devices to function the emergency stop and interlock circuit.
●Connect the wires or connectors securely. The loose connection might cause abnormal
exothermic heat or smoke generation.
●Do not allow foreign matters such as liquid, flammable materials, metals to go into the
inside of the product. It might cause exothermic heat or smoke generation.
●Do not undertake construction (such as connection and disconnection) while the power
supply is on.
●Never remove the terminal block under applying current to load.
It might cause electric shock or CT breakdown.
●Do not use at secondary side circuit of inverter. It might cause exothermic heat or
damage.
CAUTION
Copyright and trademark
●Panasonic Industrial Devices SUNX Co., Ltd. owns the copyright of this manual.
●We stiffly refuse the reproduction of without permission from this manual.
●Modbus Protocol is a communication protocol that the Modicon Inc. developed for PLC
and Modbus is the registered trademark of Schneider Electric.
●Windows is the trademark of Microsoft Corporation in USA and other companies.
●Ethernet is the trademark of Xerox of USA.
●Firefox is the trademarks of Mozilla Foundation in USA and other companies.
●Google Chrome and Android are the trademarks of Google Inc.
●Other company names and the product names are the trademarks or registered
trademarks of each company.
Introduction
Thank you very much indeed for purchasing
KW2M Eco-POWER METER.
In this manual, we explain the usage of KW2M
Eco-POWER METER in detail.
Please use it correctly after understanding the content
enough.
Table of Contents
Cautions before using ...............................................................................................................................ⅰ
Chapter 1 Unit’s Outline ............................................................................................................................. 1
1.1 Model Number ......................................................................................................................................... 1
1.2 Firmware .................................................................................................................................................. 1
1.3 Measurement outline ............................................................................................................................... 2
1.4 Measurement items ................................................................................................................................. 3
Chapter 2 Parts Name and Working .......................................................................................................... 6
2.1 Parts Names ............................................................................................................................................ 6
2.2 Key’s functions ......................................................................................................................................... 7
Chapter 3 Wiring......................................................................................................................................... 8
3.1 Main unit terminal arrangement ............................................................................................................... 8
3.2 Expansion unit terminal arrangement ...................................................................................................... 8
3.3 Measured-circuit .................................................................................................................................... 10
3.4 Connection between the Main unit and the Expansion unit .................................................................. 11
3.5 Wiring Diagrams .................................................................................................................................... 12
3.6 How to attach the Current Transformer (CT) ......................................................................................... 14
3.7 For Input Connection ............................................................................................................................. 16
3.8 For Output Connection .......................................................................................................................... 16
3.9 For Analog Input Connection (Expansion unit (Multi analog unit)) ........................................................ 17
3.10 For RTD Input Connection (Expansion unit (Multi analog unit)) .......................................................... 17
3.11 RS485 Communication ........................................................................................................................ 18
3.12 Backup Battery for Clock ..................................................................................................................... 18
3.13 Low Voltage Directive .......................................................................................................................... 19
3.14 Symbol List .......................................................................................................................................... 20
Chapter 4 Settings.................................................................................................................................... 21
4.1 Setting Flow ........................................................................................................................................... 30
4.2 Password Entry ...................................................................................................................................... 35
4.3 Password Initialize ................................................................................................................................. 36
4.4 How to Set by Keys................................................................................................................................ 37
4.4.1 Settings for power measurement ................................................................................................. 37
4.4.2 Settings for leakage current measurement .................................................................................. 38
4.4.3 Settings for analog measurement
*Only for Expansion unit (Multi analog input) ......... 39
4.4.4 Settings for communication (RS485)
*Only for Main unit ........................................................ 40
4.4.5 Settings for communication (Ethernet) *Only for Main unit ....................................................... 42
4.4.6 Settings for optional functions ...................................................................................................... 44
4.4.7 Settings for calendar timer (only KW2M-X) .................................................................................. 48
4.4.8 Password setting .......................................................................................................................... 49
4.4.9 Confirmation window .................................................................................................................... 50
4.5 How to Set by Web Browser (System Web) .......................................................................................... 51
4.5.1 Setting item................................................................................................................................... 51
4.5.2 Settings for power measurement ................................................................................................. 53
4.5.3 Setting for leakage current measurement .................................................................................... 55
4.5.4 Settings for AD conversion ........................................................................................................... 56
4.5.5 Settings for RTD measurement .................................................................................................... 57
4.5.6 Settings for demand and power rates .......................................................................................... 58
4.5.7 Settings for log (only KW2M-X) .................................................................................................... 62
4.5.8 Settings for pulse input (only Main unit and Expansion unit (Digital I/O) ..................................... 64
4.5.9 Settings for pulse output (only Main unit and Expansion unit (Digital I/O) ................................... 65
4.5.10 Settings for Ethernet and RS485 communication ...................................................................... 74
4.5.11 System setup .............................................................................................................................. 77
Chapter 5 Various Functions .................................................................................................................... 80
5.1 Power Quality Measurement and Logging Function .............................................................................. 80
5.2 Pulse Output Function ........................................................................................................................... 80
5.2.1 Output depends on integral electric power ................................................................................... 80
5.2.2 Stand-by alarm ............................................................................................................................. 80
5.2.3 Under voltage alarm ..................................................................................................................... 80
5.2.4 Over voltage alarm ....................................................................................................................... 80
5.2.5 Power interruption alarm .............................................................................................................. 81
5.2.6 Under current alarm ..................................................................................................................... 81
5.2.7 Current alarm................................................................................................................................ 81
5.2.8 Power alarm ................................................................................................................................. 81
5.2.9 Other alarms ................................................................................................................................. 81
5.2.10 Output depends on count value ................................................................................................. 81
5.2.11 Time Control (only KW2M-X) ..................................................................................................... 81
5.2.12 Level output ................................................................................................................................ 81
5.3 Counter Function ................................................................................................................................... 82
5.4 Clock Correction Function
(only KW2M-X) ....................................................................................... 82
5.5 Hour Meter Function .............................................................................................................................. 83
5.6 Demand Function................................................................................................................................... 84
5.6.1 Block interval demand .................................................................................................................. 84
5.6.2 Current demand ........................................................................................................................... 85
5.6.3 Max. demand value ...................................................................................................................... 85
5.6.4 Demand alarm output ................................................................................................................... 85
5.6.5 Working at power failure and at recovery ..................................................................................... 85
5.6.6 Totaling the demand ..................................................................................................................... 85
5.7 Logging Data Writing Function (only KW2M-X) ..................................................................................... 86
5.7.1 File creating .................................................................................................................................. 86
5.7.2 Format for written files .................................................................................................................. 87
5.7.3 File name and saved folder .......................................................................................................... 94
Chapter 6 Display of Each Value ............................................................................................................. 97
6.1 Working of Monitor Display .................................................................................................................... 97
6.2 Working of Monitor Display (Main unit, Expansion unit (Power measurement)) ................................... 98
6.2.1 Single-phase two-wire system...................................................................................................... 98
6.2.2 Single-phase three-wire system ................................................................................................. 100
6.2.3 Three-phase three-wire system.................................................................................................. 102
6.2.4 Three-phase four-wire system.................................................................................................... 104
6.2.5 Instantaneous power .................................................................................................................. 106
6.2.6 Total integral power .................................................................................................................... 107
6.2.7 Total integral export power ......................................................................................................... 108
6.2.8 Current ........................................................................................................................................ 109
6.2.9 Voltage ....................................................................................................................................... 109
6.2.10 Power factor ............................................................................................................................. 110
6.2.11 Frequency................................................................................................................................. 110
6.2.12 Current unbalance .................................................................................................................... 110
6.2.13 Voltage unbalancing ................................................................................................................. 110
6.2.14 Current THD ............................................................................................................................. 111
6.2.15 Voltage THD ............................................................................................................................. 111
6.2.16 Current n-order harmonics ....................................................................................................... 111
6.2.17 Voltage n-order harmonics ....................................................................................................... 111
6.2.18 Pulse input value ...................................................................................................................... 112
6.2.19 Conversion value for integral active power .............................................................................. 112
6.2.20 Conversion value for integral export power .............................................................................. 112
6.2.21 Hour meter................................................................................................................................ 113
6.2.22 Clock (only KW2M-X) ............................................................................................................... 113
6.3 Working of Monitor Display (Expansion unit (Leak measurement)) .................................................... 114
6.3.1 Leakage current ......................................................................................................................... 114
6.4 Working of Monitor Display (Expansion unit (Multi analog input)) ....................................................... 115
6.4.1 Analog measured value .............................................................................................................. 115
6.4.2 Temperature ............................................................................................................................... 115
6.5 Working of Monitor Display (Expansion unit (Digital I/O)) ................................................................... 116
6.5.1 Pulse input value ........................................................................................................................ 116
6.6 Working of Logging Mode .................................................................................................................... 117
6.6.1 Max. demand value .................................................................................................................... 118
6.7 Working of Demand Mode ................................................................................................................... 119
6.7.1 Block interval demand (Sliding block, fixed block) ..................................................................... 119
Chapter 7 Monitoring Measured Value via Web Browser (Monitor Web).............................................. 122
Chapter 8 Creating Web Contents (Customer Web) ............................................................................. 123
8.1 How to Upload Web Contents ............................................................................................................. 124
8.2 How to Download Web Contents ......................................................................................................... 125
Chapter 9 How to Update the Firmware ................................................................................................ 127
Chapter 10 How to Update the Web Contents....................................................................................... 129
Chapter 11 Specifications ...................................................................................................................... 132
11.1 General Specification (Main unit, Expansion unit) ............................................................................. 132
11.2 Measurement Specifications .............................................................................................................. 133
11.3 Output Specifications (Main unit and Expansion unit (Digital I/O)) .................................................... 135
11.4 Input Specifications ............................................................................................................................ 136
11.5 Demand Monitor and Control Specifications (common to 9, 10) ....................................................... 138
11.6 Communication Specifications ........................................................................................................... 138
11.7 Web Server Specifications (common to Main unit and Expansion unit)） .......................................... 139
11.8 Main Unit Memory Specifications (only KW2M-X) ............................................................................. 140
11.9 Self-diagnostic ................................................................................................................................... 142
Chapter 12 Mounting .............................................................................................................................. 143
12.1 Dimensions ........................................................................................................................................ 143
12.1.1 Main unit (KW2M-A/KW2M-X).................................................................................................. 143
12.1.2 Expansion unit .......................................................................................................................... 143
Cautions before using
■ About this product
Eco-POWER METER is designed chiefly to manage saving energy.
It is neither nor can it be legally used for billing.
■ Installation environment
◇Do not use the Unit in the following environments.
・Where the unit will be exposed to direct sunlight and where the ambient temperature is outside
the range of -10 to 50 C.
・Where the ambient humidity is outside the range of 30 to 85 % RH (at 20C), non-condensing
and where condensation might occur by sudden temperature changes
・Where inflammable or corrosive gas might be produced
・Where the unit will be exposed to excessive airborne dust or metal particles
・Where the unit will be exposed to water, oil or chemicals
・Where organic solvents such as benzene, paint thinner, alcohol, or strong alkaline solutions
such as ammonia or caustic soda might adhere to the product
・Where direct vibration or shock might be transmitted to the product, and where water might wet
the product
・Where the place near high-voltage cable, high-voltage device, power line, power device.
・Where the place near a machinery with transmission function such as amateur radio.
・Where the place near a machinery which occurs the big switching serge
◇Please use the Unit according to the specifications described in this manual. Otherwise, it may
malfunction or cause fire and an electric shock.
・Connect to the power supply in compliance with the rating.
・Refer to the wiring diagram to ensure proper wiring for the power supply, input and output.
・Use the wire that conforms to the rated current.
・Do not perform wiring or installation with a live line. It may also lead to circuit burnout or fire by
way of the secondary CT side opening.
■ Installation
・Eco-POWER METER is designed to be used in a control panel.
・If the additional noise effects the power supply line, incorrect measurements may result.
・Installation and wiring must be performed by expert personnel for electrical work or electric
piping.
・Do not add an excess power to the display. It might break the inner liquid crystal.
・Although the case is made from fireproof resin, do not mount it next to flammable materials. Also,
avoid placing it directly on top of materials that catch fire easily.
■ As to measurement
･If there is some distortion by harmonic or waveform, it may not measure correctly.
Please check with the actual system before adopts it.
・It might not measure an instantaneous current such as an inrush current or an welding machine.
・When measuring the below loads, it might not satisfy with the accuracy guarantee.
Out of rating current, Load with low power factor,
Load with winding current, Load with ferromagnetic field
・Power factor operation is a method assuming balanced load. The error might be big when it
measures unbalanced load.
・If the voltage to be measured is not the rated frequency (commercial frequency), it may take
time to stabilize THD (total harmonic distortion).
■ Static electricity
・Discharge static electricity touching the grounded metal etc. when you touch the unit.
・Excessive static electricity might be generated especially in a dry place.
i
■ Cleaning
・Wipe dirt of the main unit with soft cloth etc. When thinner is used, the unit might deform or be
discolored.
■ Power supply
・Connect a breaker to the voltage input part for safety reasons and to protect the device.
The breaker that connects to the voltage input part must arrange at the position easily reached,
and display shows it is the breaker of the equipment.
・Do not turn on the power supply or input until all wiring is completed.
■ Before power on
Please note the following points when turning on power at the first time.
・Confirm there are neither wiring rubbish nor especially an electrical conduction when installed.
・Confirm neither the power supply wiring, the I/O wiring nor the power-supply voltage are wrong.
・Tighten the installation screw and the terminal screw surely.
・Use an electric wire applicable to the rated current.
■ Before change the setup
Set the password carefully.
In order to avoid unexpected change the settings, it can set password. However, if you forget the
password you can’t change the settings.
We recommend you to note the password when you set and change the password.
■ Precautions on using networks
This product supports various network connections therefore it is likely to be subject to the following
security risks.
1. Leakage and outflow of information via this product
2. Illegal operation by third party with malicious acts
3. Interference and shut down by third party with malicious acts
It is recommended to take network security measures such as below for protecting against these risks
under your responsibility.
・Use this product on the network that has been ensuring safety by using firewall
・Check and extermination against the infection of computer viruses and unauthorized program are
you make sure that you have performed regularly
・To protect against unauthorized attacks, set the user name and password, and to limit the users
who can log in.
・Restrict access by user authentication so that authentication information (user name, password)
and network configuration information and equipment inside information is not leak on the
network.
・Before you access this product via browser, close other windows.
・After you access this product via browser, close all browsers.
・Change password regularly.
・Do not install the place where it can be disassembled or remodeled easily.
We do not accept liability for the following cases.
1) Guarantee for any kind of damages to the things/products, caused by physical defects of the
product.
2) When the other conditions than the ones specified in these specifications exist for handling,
storage and transportation of the product after the delivery.
3) When damage is caused by the unpredictable phenomena with the technique that was practiced
before the product delivery.
4) When damage is caused by natural disasters such as an earthquake, flood, fire, war and
artificial disasters.
5) When necessary countermeasures are not taken to establish a system despite the precautions
described in this specifications.
ii
KW2M Eco-POWER METER
Chapter 1 Unit’s Outline
With KW2M Eco-POWER METER, electrical power (voltage, current, etc.), power factor, frequency, etc.
are measured using AC voltage and AC current input via one of the following systems: single-phase
two-wire system, single-phase three-wire system, three-phase three-wire system or three-phase
four-wire system.
In addition, it measures harmonics and THD for power quality measurement.
Connecting the expansion unit to the main unit can measure up to 8-circuit (up to 24-circuit of
single-phase 2-wire system). One unit can measure 2-circuit.
■Eco-POWER METER is designed chiefly to manage saving energy. It is neither intended nor
can it be legally used for billing.
1.1 Model Number
Model name
Model number
KW2M-A Eco-POWER METER Main unit
AKW263100A
(Standard type)
KW2M-X Eco-POWER METER Main unit
AKW264100A
(Memory type)
KW2M Eco-POWER METER
AKW272100A
Expansion unit (Power measurement)
KW2M Eco-POWER METER
AKW273230A
Expansion unit (Multi analog input )
KW2M Eco-POWER METER
AKW274240A
Expansion unit (Digital I/O)
* It can’t measure with only the Expansion unit. Be sure to use with connecting to main unit.
1.2 Firmware
●Combination software using the Expansion unit
Expansion unit
AKW263100A firmware
AKW264100A firmware
AKW272100A (Power measurement)
Ver.1.00 or more
Ver.1.00 or more
AKW272100A Ver1.20 or more
(with leakage current measurement)
Ver.1.10 or more
Ver.1.10 or more
AKW273230A
Ver.1.10 or more
Ver.1.10 or more
AKW274240A
Ver.1.10 or more
Ver.1.10 or more
●For using the additional functions
Functions -Power quality logging
Model Number
-Custom logging
-Leakage current measurement
AKW263100A
Ver.1.00 or more
―
AKW264100A
Ver.1.01 or more
Ver.1.10 or more
AKW272100A
Ver.1.10 or more
Ver.1.20 or more
AKW273230A
Ver.1.20 or more
Ver.1.20 or more
AKW274240A
Ver.1.20 or more
Ver.1.20 or more
* You can’t use the expansion units or additional functions if the firmware doesn’t support to each.
Check beforehand to use them and upgrade the firmware.
1
KW2M Eco-POWER METER
1.3 Measurement outline
●Main unit, Expansion unit (Power measurement)
Single-phase two-wire
Single-phase three-wire
Phase/Wire system
Three-phase three-wire
Three-phase four-wire
(1P2W)
(1P3W)
(3P3W)
(3P4W)
Applicable power system
100V system, 200V system, 400V system
Measurement circuit
Main unit
Expansion unit
(Power measurement)
1-system 2-circuit
(when measuring 1P2W: 1-system 6-circuit)
1-system 2-circuit
(when measuring 1P2W: 1-system 6-circuit)
Input measurement voltage
0 to 690VAC *0 to 300V for UL61010-1
Input measurement current
1 to 65,535A
Applicable current sensor
Secondary side output: 1A or 5A
●Expansion unit (Multi analog input)
Analog input (Voltage /
3-channel
Current)
Temperature measuring
2-channel
resister input
●Expansion unit (Digital I/O)
Pulse input
Pulse output
2-channel
4-channel
2
(common)
KW2M Eco-POWER METER
1.4 Measurement items
●Main unit, Expansion unit (Power measurement)
Item
Unit
Instantaneous
power
Total integral
power
(import)
Total integral
power
(export)
Current
Active
W
Reactive
var
Apparent
VA
Active
Wh
Reactive
varh
Apparent
VAh
Active
Wh
Reactive
varh
Voltage
Display data range
-999.99P to 999.99P
0.000k to 999.99P
0.000k to 9999.9P
Present value
0.000k to 9999.9P
Present value
A
0.000 to 999.99k
V
0.00 to 9999.9k
Power factor
-1.000 to 0.000 to 1.000
Frequency
Hz
Leakage current
Present value
Max. value
Min. value
0.00 to 99.99
Pulse count value
Power conversion value
Present value
Max. value
Min. value
0.000 to 999999
Present value
Wh
0.000k to 9999.9P
Present value
A
0.0000 to 99999.9999
Present value
* ‘Display data range’ is the range to be able to indicate with the main unit display, it is not a range that
can be measured.
・Power Quality
Item
Display data range
Unbalanced current
Each phase
Unbalanced voltage
Current THD
(total harmonic distortion)
Voltage THD
(total harmonic distortion)
Current harmonics
(2nd to 31st )
Each phase
Voltage harmonics
(2nd to 31st )
Phase
0.00 to 300.00 %
Present value
Max. value
Min. value
0.00 to 400.00 %
Present value
Each phase
Each phase
Each phase
Line
ON-time
OFF-time
Hour Meter
0.0 to 99999.9 h
Stand-by time
Maintenance time
* If the voltage to be measured is not the rated frequency (commercial frequency), it may take time to
stabilize THD (total harmonic distortion).
3
KW2M Eco-POWER METER
・Demand
Item
Unit
Display data range
Active
W
Present value
Reactive
var
Max. value
Apparent
VA
0.000k to 999.99M
Present demand
*1
Monthly max. value
Active (export)
W
(latest 13 months)
Reactive (export)
var
*2
Current
A
0.000k to 999.99k
*1 Please use this demand function as your standard.
The demand value calculated with this function is not guaranteed.
*2 only KW2M-X
●Expansion unit (Multi analog input)
Item
Display data range
Digital conversion value
-999999999 to 999999999
Temperature
-200.0 to +200.0C
*Digit of digital conversion value differs according to the setting scaling value.
●Expansion unit (Digital I/O)
Item
Display data range
Pulse count value
0.000 to 999999
*Digit of pulse count value differs according to the setting pre-scale value.
4
KW2M Eco-POWER METER
Eco-POWER METER defines as below.
THD
Ratio of harmonic distortion (voltage or current) for the fundamental frequency.
(total harmonic
Lower the value shows that the distortion is less.
distortion)
Sinusoidal wave other than fundamental frequency.
It has frequency that is whole-number multiple of the fundamental frequency.
Harmonics
The frequency that has 2 times frequency (half wavelength) is called 2nd-order
harmonics.
Voltage
The different between each phase-voltage due to the load unbalancing.
unbalancing
It is calculated as below.
|Max. (Min.) voltage of all phase－average voltage|
Average voltage
Current
unbalancing
The difference between each-phase current due to the load unbalancing.
It is calculated as below.
|Max. (Min.) current of all phase－average current|
Average current
Power
interruption
Under voltage
Under current
Over current
Demand by
IEC61557-12
×100 (%)
×100 (%)
Voltage under 5% of rating is kept 5ms or more.
Set the ratio for the rated voltage and it is used for threshold.
Voltage under the set ratio is kept 5ms or more, it will judge as under voltage.
Set the ratio for the rated current and it is used for threshold.
Current under the set ratio is kept 5ms or more, it will judge as under current.
Set the ratio for the rated current and it is used for threshold.
Current over the set ratio is kept 5ms or more, it will judge as over current.
Based on IEC61557-12 Performance measuring and monitoring devices (PMD)
Sliding block interval
demand
fixed block interval
demand
Current demand
It calculates by measured power via CT with setting interval.
Set power interval by 1 to 60(min.) (every 1-min.). It calculates demand
during latest finished interval and displays.
One interval is started every setting time.
It calculates by measured power via CT with setting interval.
Set power interval by 1 to 60 (min.) (every 1-min.) It calculates demand
during latest finished interval and displays. After one interval finishes, the
next interval starts.
It calculates based on a thermal demand meter.
It measures an average current (current demand) within setting interval and
the max. value is considered as max. current demand.
5
KW2M Eco-POWER METER
Chapter 2 Parts Name and Working
2.1 Parts Names
●Main Unit
Power supply
terminals
Voltage input
terminals
Operation keys
Display
Indicators
RS485
communication
terminals
Ethernet port
Left: port 1
Right: port 2
Pulse I/O
terminals
Current input
terminals
●Expansion Unit (Power measurement)
●Expansion Unit (Multi analog input)
Current input
Terminals
6
Current / Voltage
Input terminals
RTD Input terminals
KW2M Eco-POWER METER
●Expansion Unit (Digital I/O)
Pulse output
terminals
Pulse input terminals
2.2 Key’s functions
Key
(continuous 3-sec)
+
+
Measuring mode
Setting mode
Setting mode
Measuring mode
Demand mode
Lock mode
Measuring mode
Setting mode
Demand mode
Measuring mode
Demand mode
Measuring mode
Demand mode
Functions
Shift to setting mode
Shift to setting confirmation mode and measuring mode
Set setting items and setting values
All keys locked
Release the lock mode
Select measuring item to display
Select a setting value
Select demand item to display
Select unit to display
Shift to demand mode
Shift to measuring mode
●Lock mode
It is the mode makes all keys unable. In this mode, you can’t input by any keys.
When you press continuously for about 3sec., lock mark is displayed.
Press continuously for about 3sec. again to release Lock mode.
7
KW2M Eco-POWER METER
Chapter 3 Wiring
Be sure to wire correctly according to the terminal arrangement and wiring diagrams.
Please connect a fuse or a breaker to power supply part for safety reasons and to protect the device.
This has no built-in power switch, circuit breaker or fuse for measured voltage input parts.
Therefore it is necessary to install them in the circuit near this unit.
Do not turn on the power supply or input until all wiring is completed.
3.1 Main unit terminal arrangement
Power supply terminals
Terminal
1
2
number
L+
N－
Functions
Power supply
Voltage input terminals
Terminal
1
2
3
number
V1
NC
V2
Functions Measured
Measured
vacant
voltage
voltage
*Do not use NC (vacant) terminals in any purpose.
Pulse I/O terminals
Terminal
1
number
+
Functions
2
Pulse input
*It is insulated between OUT1 and OUT2.
5
6
7
NC
V3
Measured
voltage
NC
Vn
Measured
voltage
vacant
Current input terminals
Terminal
1
2
3
4
5
6
number
K
L
K
L
K
L
Functions
CH1(CT1)
CH1(CT2)
CH1(CT3)
Measured current (CH1)
RS485 communication terminals
Terminal
1
2
number
Functions
+
+
*Each terminal is connected internally.
4
7
8
vacant
9
10
11
12
K
L
K
L
K
L
CH2(CT1)
CH2(CT2)
CH2(CT3)
Measured current (CH2)
3
4
5
6
-
-
END
END
3
4
5
6
+
Pulse output (OUT1)
+
Pulse output (OUT2)
3.2 Expansion unit terminal arrangement
●Power
Current input terminals (Upper)
Terminal
1
2
number
K
L
Functions
CH1(CT1)
Current input terminals (Lower)
Terminal
1
2
number
K
L
Functions
CH2(CT1)
3
4
K
L
CH1(CT2)
Measured current (CH1)
3
K
4
L
CH2(CT2)
Measured current (leak)(CH2)
8
5
6
K
L
CH1(CT3)
5
6
K
L
CH2(CT3)
KW2M Eco-POWER METER
●Multi analog input
Analog input terminals (Upper)
Terminal
1
number
V/I
Functions
CH1
RTD input terminals (Lower)
Terminal
1
number
A
Functions
2
3
4
5
6
COM
V/I
COM
V/I
COM
CH2
Voltage / Current input
CH3
2
3
4
5
6
B
CH1
b
A
B
CH2
b
3
4
5
6
+
-
+
-
RTD
●Digital I/O
Pulse output terminals (Upper)
Terminal
1
2
number
+
Functions
Pulse output (OUT1)
Pulse output terminals (Lower)
Terminal
1
2
number
+
Functions
Pulse output (OUT4)
Pulse output (OUT2)
Pulse output (OUT3)
3
4
5
6
+
-
+
-
Pulse input (IN1)
The input voltage to each terminal is as follows.
Terminal
Phase and wire system
Terminal No.
1-2
Power
Single-phase two-wire
supply
(L+ - N－)
Voltage input terminals
1-7
Single-phase two-wire
(V1-Vn)
1-5-7
Measured Single-phase three-wire
(V1-V3-Vn)
voltage
1-5-7
input
Three-phase three-wire
(V1-V3-Vn)
1-3-5-7
Three-phase four-wire
(V1-V2-V3-Vn)
9
Pulse input (IN2)
Input voltage
100-240V AC [100-240V
]
0-690VAC [0-690V
]
(L-L)
0-690VAC [0-690V
0-345VAC [0-345V
:3W]
:3W]
(L-L)
(L-N)
0-690VAC [0-690V 3
]
(L-L)
0-690VAC [0-690V 3
0-398VAC [0-398V 3N
]
]
(L-L)
(L-N)
KW2M Eco-POWER METER
◆Applicable wire (Crimp-type terminal is recommended.)
･Stripping length: 7 to 8mm
・Power supply/Measured voltage
Screw type: M3
Tightening torque: 0.5 to 0.6N･m
Sectional area: single /stranded wire 0.13 to 3.3mm2(AWG26 to12)
・for 2pcs.
single/stranded wire 2pcs.×0.5 to 2.5mm2 (AWG20 to 12)
・Measured current (CT input)
Screw size: Push IN type
Sectional area: single /stranded wire 0.13 to 1.5mm2(AWG24 to16)
*Use applicable wire according to the measured current.
・RS485 communication
Screw size: Push IN type
Sectional area: single /stranded wire 0.13 to 1.5mm2(AWG24 to16)
・Output/Input
Screw size: Push IN type
Sectional area: single /stranded wire 0.13 to 1.5mm2(AWG24 to16)
・Analog input/RTD
Screw size: Push IN type
Sectional area: single /stranded wire 0.13 to 1.5mm2(AWG24 to16)
3.3 Measured-circuit
・It is not impossible to use to measure several loads by different strain power supply. (2-circuit of same
system for 1 unit)
・Each unit (main unit, expansion unit (power measurement, power measurement + pulse output)) can
measure 2-circuit of single-phase two-wire system, and 1-circuit of single-phase three-wire system or
three-phase three-wire system. Each unit can be used with different phase and wire system. However
be sure to check the wiring carefully.
・It is impossible to measure by only the expansion unit. Connect expansion units to main unit.
Up to 3 expansion units are connected to 1 main unit.
*Power source system
・ Power source system is the electrical power system from one power source (normally one
transformer).
･KW2M can measure 1-system max. 24-circuit of 1P2W system and 1-system max. 8-circuit of 1P3W
and 3P3W system by connecting a main unit and expansion units.
・In order to measure several systems, it is necessary to use one main unit for each system.
10
KW2M Eco-POWER METER
3.4 Connection between the Main unit and the Expansion unit
・Turn off the power of main unit when connecting expansion units.
・Peel off connector label on the side before connecting.
(Do not peel off connector labels when not connecting.)
・It expands by connecting each male connector to female connector. Female connector is on the other
side of male connector.
・After connecting, push the hooks into the unit to fix the expansion unit.
・Up to 3 expansion units can be connected per one main unit.
Note) Communication will be stopped or the measurement data will be lost when the units are
removed or connected while turn on power.
Expansion connector (male)
Hook
Hook
11
Hook
Connector label
KW2M Eco-POWER METER
3.5 Wiring Diagrams
Please connect a breaker or a fuse to the power supply and voltage input part for safety reasons and to
protect the device.
･Recommended breaker: 3 to 15A (IEC approved or UL Listed)
･Recommended fuse : Time-lag fuse rated current 2A (IEC approved or UL Listed)
Grounding the secondary side of VT (Voltage transformer) and CT (Current transformer) is not
necessary with low-voltage circuit.
*When using several CTs, set each CT approximately 1m apart. If the two CTs are set too close each
other, it may not measure accurately due to magnetic field interference.
◆When measuring a load with rated input voltage
Single-phase two-wire system
*One CT is needed to measure single-phase two-wire system.
*2 CTs are needed to measure 2-circuit and 3 CTs are needed to measure 3-circuit.
*To measure 2-circuit, wire 1 and 3. To measure 3-circuit, wire 1 and 3 and 5.
Single-phase three-wire/Three-phase three-wire
*2 CTs are needed to measure single-phase three-wire system, three-phase three-wire system.
*4 CTs are needed to measure 2-circuit.
12
KW2M Eco-POWER METER
Three-phase four-wire system
*3 CTs are needed to measure three-phase four-wire system.
*6 CTs are needed to measure 2-circuit.
Vn terminal should be connected to N-phase which is grounded.
◆When measuring a load with exceed input voltage
Voltage transformer (VT) is needed when you measure a load
with over input voltage.
Use a VT, those secondary voltage rating is 110V.
Grounding the secondary side of VT and CT is not necessary with
low-voltage circuit.
◆When measuring leak current (Only Expansion unit CH2)
By inputting the ground line of the equipment to CT input or direct
current input, it is possible to measure the leakage current of the ground,
and it can be used as equipment maintenance.
13
KW2M Eco-POWER METER
3.6 How to attach the Current Transformer (CT)
DANGER
●Never open the secondary circuit of CT under applying current to load.
・Use CT that the secondary side current is 5A or 1A.
・One CT is needed when measuring 1-circuit of 1P2W. Two CTs are needed when measuring
1P3W/3P3W (4 CTs for 2-circuit).Three CTs are needed when measuring 3P4W (6 CTs for 2-circuit).
Using all CTs for one unit should be the same.
・Use the applicable wire, or it might cause a breakdown, burnout or electric shock.
・When connecting CT, connect the secondary side to the terminal of the main unit first, and after that
wire the primary side to a load electric wire. Incorrect order might cause an electric shock or break
CT.
・The CT has polarity. Wire correctly according to the K and L marks. Wrong direction can’t measure
correctly.
･If there is some distortion by harmonic or waveform, it may not measure correctly.
Please check with the actual system before adopts it.
・Separate the wiring (strong electric part) of the measured voltage input terminal (operating power
supply terminal) from the CT cable. It may not satisfy the accuracy due to noise.
14
KW2M Eco-POWER METER
(Connection example)
◆How to set the parameters for CT
(1) Select CT type (CT-T) according to the using CT.
(Select ‘5A’ if secondary side current of using CT is 5A. Select ‘1A’ if secondary side current
of using CT is 1A.)
(2) Set the primary current of measured CT at primary side current of CT setting mode (CT-1).
< ex > If the measured CT is 400A/1A or 400A/5A, set to ‘400’.
(3) Connect CT according to the CT direction, power side (K) to load side (L).
15
KW2M Eco-POWER METER
3.7 For Input Connection
●Pulse input
・Contact input
Use highly reliable metal plated contacts. Since the contact’s bounce time leads directly to error in
the count value, use contacts with as short a bounce time as possible. In general, select 30Hz for
max.counting speed.
・Non-contact input (Transistor input)
Connect with an open collector. Use the transistor with the following specifications.
VCEO=20V min. IC=20mA min. ICBO=6μA max
Use transistors with a residual voltage of less than 3V when the transistor is ON.
*Short-circuit impedance should be less than 1kΩ.
Open-circuit impedance should be more than 100kΩ.
(When the impedance is 0Ω, drain current is approx. 10mA.)
・Input wiring
Please wire as short as possible by using a shielded wire or a metallic electric wire tube individually.
3.8 For Output Connection
●PhotoMOS relay output
・It adopts PhotoMOS relay output, there is no polarity.
Output: Rated capacity 30V AC/DC, 0.1A
・Do not connect devices that voltage or load exceeds the rated capacity (30V AC/DC,0.1A)
・Please wire less than 100m for output.
If it is long, it may not work correctly due to floating capacitance.
16
KW2M Eco-POWER METER
3.9 For Analog Input Connection (Expansion unit (Multi analog unit))
Note)
・Use double-core twisted-pair shielded wires. It is recommended to ground them. However, depending
on the conditions of the external noise, it may be better not to ground the shielding.
・Do not have the analog input wiring close to AC wires, power wires, or load.
・Digital conversion value is not stable when it is not wired.
3.10 For RTD Input Connection (Expansion unit (Multi analog unit))
3-wire resistance
temperature detectors
input
Note)
・ For copper wires for wiring, use thick wires having insulation performance of IEC 60227-3 or
equivalents to prevent a large increase in the electric resistance. (It is recommended to use shielded
wires and to ground the shielding.
・Do not have the resistance temperature detectors input wiring close to AC wires, power wires, or load.
17
KW2M Eco-POWER METER
3.11 RS485 Communication
・When using shielded cable for the RS485 transmission line, ground one end.
Use a class D dedicated earth for grounding. Do not share a ground with other earth lines.
・Be sure to connect with daisy chain the RS485 transmission line between each unit.
Do not use a splitter.
・To avoid noise, separate the transmission line from high-voltage line (power supply, voltage line).
Terminal
station
Terminal
station
Correct wiring
○
Incorrect wiring
×
◆How to connect KW2M (2-wire) and KW9M (3-wire)
3.12 Backup Battery for Clock
It is possible to back up the clock with backup battery for 1-month. In order to charge full, it is necessary
to turn on the power for 2 days. If it turns off within 2 days from first installation, it may not back up the
clock for 1-month.
18
KW2M Eco-POWER METER
Recommended Cable
Use the transmission cables shown below for Eco-POWER METER RS485 communication system.
Conductor
Insulator
Cable
Resistance
Cable
Applicable cable
diameter
Size
Material
Thickness
(at 20C）
HITACHI
1.25 mm2
Max.
Approx.
KPEV-S
(AWG16) Max.16.8Ω/km
Polyethylene
0.5 mm
8.5 mm
1.25 mm2×1P
or more
TwistedBelden Inc. 9860
pair
HITACHI
2
with shield 0.5 mm
Max.
Approx.
KPEV-S
(AWG20) Max.33.4Ω/km
Polyethylene
0.5 mm
7.8 mm
0.5 mm2×1P
or more
Belden Inc. 9207
0.75 mm2
VCTF
Max.
Approx.
VCTF
(AWG18) Max.25.1Ω/km
PVC
0.75 mm2×2C
0.6 mm
6.6 mm
or more
(JIS)
Cable
Section
Shield
Twisted-pair
with shield
Conductor
Notes
1) Use shielded type twist cables.
2) Use only one type of the transmission cables.
3) Do not mix different types of the cables.
4) Use twisted-pair cables under a bad noise
environment.
Jacket
Insulator
Jacket
VCTF
Conductor
Insulator
3.13 Low Voltage Directive
For using under the measurement category III, install varistors or SPD between the lines of power
supply and the measured voltage input. Use the varistors or SPD which is complied with European
standard and specifications to meet power supply and added current.
When using in the application conforming to EN61010-1/IEC61010-1, make sure to satisfy the following
conditions.
1) RS485 communication part and pulse input part secure only basic insulation. In order to secure
reinforced (double) insulation demanded by EN 61010-1/ IEC61010-1, secure basic insulation or
more with load side and reinforced (double) insulation with RS485 communication system side.
2) Provide the voltage input part with an EN60947-1 or EN60947-3 compliant circuit breaker.
3) Use a wire with basic insulation or more for a wire cramped (or connected) CT
4) Vn terminal should be connected to N-phase which is grounded.
【Environmental conditions】
・Overvoltage category III, Pollution degree 2
・Indoor use
・An ambient temperature of -10 to +50C
・An ambient non-condensing humidity of 30 to 85%RH (at 20C)
・Altitude of 2000m or less
【Mount the product in a place with】
・A minimum of dust, and an absence of corrosive gases
・No flammable, explosive gasses
・Few mechanical vibrations or shocks
・No exposure to direct sunlight
・No large capacity electromagnetic switches or cables through which large current is flowing
19
KW2M Eco-POWER METER
3.14 Symbol List
Symbol
Explanation
AC Voltage
DC Voltage
CE Mark
Confirmation of conformity of the product with the applicable EU directives
and compliance with the essential requirements contained in these directives
Protective insulation, device with protection class II
Products with this mark comply with both the Canadian and the American
requirements
20
KW2M Eco-POWER METER
Chapter 4 Settings
You can set basic parameters for measuring using the keys on Eco-POWER METER. For the
parameters for other functions, use Web browser to set.
(URL:http//xxx.xxx.xxx.xxx/setup/index.htm Input the setting IP address to ‘xxx.xxx.xxx.xxx’)
After wiring Eco-POWER METER and CT, power on and set the parameters for power measurement,
Eco-POWER METER can measure the electric power. In order to use the other functions, set other
parameters according to your use.
◆Keys’ functions at setting mode
Shift to setting mode
Set the items and values
,
+
Select items and change values
Select channels and units
◆Parameters for power measurement (for Main unit and Expansion unit (Power measurement))
○: Available －: Not available
Setting
Item
Range
Initial value
Keys Web
Phase/Wire system
1P2W, 1P3W, 3P3W 3P4W
1P2W
CT type
1, 5 [A]
5A
Primary side current of CT
1 to 65535 [A]
5A
○
VT secondary side voltage
100 to 690 [V]
230V
VT primary side voltage
100 to 500000 [V]
230V
Over voltage (ON threshold)
Over voltage (OFF threshold)
Under voltage (ON threshold)
Under voltage (OFF threshold)
0.0 to 120.0 [%]
0.0%
Over current (ON threshold)
Over current (OFF threshold)
Under current (ON threshold)
Under current (OFF threshold)
Conversion rate (P) total
Conversion rate (P) time-zone1 *1
Conversion rate (P) time-zone2 *1
Conversion rate (P) time-zone3 *1
○
Conversion rate (P) time-zone4 *1
0.00 to 99.99/1kWh
10.00
Conversion rate (-P) total
－
Conversion rate (-P) time-zone1 *1
Conversion rate (-P) time-zone2 *1
Conversion rate (-P) time-zone3 *1
Conversion rate (-P) time-zone4 *1
Hour meter threshold (ON-time)
0.1 to 100.0 [%]
10.0%
Hour meter threshold
0.1 to 100.0 [%]
0.1%
(Standby-time)
*1
Power OFF time*1
Target phase for hour meter
Cut-off current
Simplemeasurement
Setup
Yes, No
Phase1, Phase2, Phase3,
All
0.1 to 50.0%
OFF, Fixed voltage/PF,
Measure one CT
0.0 to 500000.0 [V]
0.000 to 1.000
Power, Leak
Voltage
PF
Measurement mode *2
*1 only KW2M-X
*2 only expansion unit (power measurement)
21
No
All
0.1%
OFF
230V
1.000
Power
○
－
KW2M Eco-POWER METER
◆Parameters for leakage current measurement (Expansion unit (Power measurement))
○: Available －: Not available
Setting
Item
Range
Initial value
Keys Web
CT type(CT1/CT2/CT3)
1, 5 [A]
5A
Primary side current of CT
1 to 65535 [A]
5A
(CT1/CT2/CT3)
○
○
Threshold
0.01 to 100.00[%]
100.00%
Leakage
measurement Detect time
0.1 to 20.0[s]
20.0s
Measurement mode *2
Power, Leak
Power
○
－
◆Parameters for demand measurement (Main unit, Expansion unit (Power measurement))
○: Available －: Not available
Setting
Item
Range
Initial value
Keys Web
Power demand type
Sliding block, Fixed block
Sliding block
Power demand interval 1
1 to 60 [min.]
15
Power demand interval 2
1 to 60 [min.]
1
CT (CT input),
Power input
CT
Pulse(Pulse input)
kWh (electric power),
Pulse unit
kWh
PLS (pulse constant)
Pulse rate
0.001 to 100.000 [kWh]
1.000
(convert to electric power)
Pulse constant number
1000 to 99000[pulse/kWh]
50000
○
－
Current demand interval
1 to 60 [min.]
15
Use
Available, Not available
Not available
Main unitCH1
Main unitCH2
Expansion unit1 CH1
Total demand Measured target Expansion unit1 CH2
None
*1
Expansion unit2 CH1
Expansion unit2 CH2
Expansion unit3 CH1
Expansion unit3 CH2
*1 Can be selected several items.
◆Parameters for leakage measurement
Item
CT type
(CT1/CT2/CT3)
Primary side current of CT
(CT1/CT2/CT3)
Leakage threshold
(CT1/CT2/CT3)
Leakage delay time
(CT1/CT2/CT3)
Range
Initial value
1, 5 [A]
5
1 to 65535 [A]
5
Setting
Keys Web
○
0.01 to 100.00 [%]
0.1 to 20.0 [s]
22
100.00
20.0
○
KW2M Eco-POWER METER
◆Parameters for analog measurement
Item
Input range (CH1/CH2/CH3)
Scaling (min/max)
(CH1/CH2/CH3)
Point position (CH1/CH2/CH3)
Shift average frequency
(CH1/CH2/CH3)
RTD setting
(CH1/CH2)
Range
0-60[V],
0-20[mA], 4-20[mA]
-999999999 to 999999999
0.0001, 0.001, 0.01, 0.1, 1
0, 2, 4, 8, 16
PT100, PT1000
23
Initial value
Setting
Keys Web
0-60
min:0
max:4000
1
8
PT100
○
○
KW2M Eco-POWER METER
◆Parameters for pulse input and output (Main unit, Expansion unit (Digital I/O))
○: Available －: Not available
Setting
Item
Range
Initial value
Keys Web
Pulse input
30, 2000
30
Pre-scale
0.001 to 100.000
1.000
Main unit CH1
Main unit CH2
Expansion unit 1 CH1
Expansion unit 1 CH2
Target unit to monitor
Main unit
Expansion unit 2 CH1
measurement value
CH1
Expansion unit 2 CH2
Expansion unit 3 CH1
Expansion unit 3 CH2
Total demand
0.001, 0.01, 0.1, 1, 10, 100
kWh
(kWh/1pulse)
Stand-by power, Active power,
Reactive power, Apparent power,
Over current, Under current,
Power interruption, Power factor,
Over voltage, Under voltage,
Over frequency, Under frequency,
Current THD, Voltage THD,
Unit for
Current harmonics,
0.001
pulse output
alarm
Voltage harmonics,
Current unbalancing,
(OUT1,OUT2,
Voltage unbalancing,
OUT3,OUT4)
Power demand, Current demand,
Digital conversion value upper limit alarm,
○
－
Digital conversion value lower limit alarm,
Temperature upper limit alarm,
Temperature lower limit alarm,
Leak alarm
General-purpose General output
Start
0:00 to 24:00
0:00
Time Control*1
End
0:00 to 24:00
0:00
Target phase for pulse output
Total, Phase1, Phase2, Phase3
total
(OUT1,OUT2,OUT3,OUT4)
electric power
Total, All, Phase1, Phase2, Phase3
total
Target phase
All, Phase1, Phase2, Phase3,
current
All
for alarm
Phase N
output
Power
(OUT1,OUT2,
interruption All, Phase1, Phase2, Phase3,
All
OUT3,OUT4) Over voltage
Line 1-2, Line 2-3, Line 3-1
Under voltage
Integral direction
P, -P
P
(OUT1,OUT2,OUT3,OUT4)
Output pulse width
1 to 100 [ms]
1
Stand-by alarm (threshold)
0.1 to 100.0 [%]
100.0
(OUT1,OUT2,OUT3,OUT4)
Stand-by alarm (start time)
0 to 9999 [sec.]
0
(OUT1,OUT2,OUT3,OUT4)
Stand-by alarm (phase)
Phase1, Phase2, Phase3, All
All
(OUT1,OUT2,OUT3,OUT4)
*1 only KW2M-X
24
KW2M Eco-POWER METER
Item
Range
Power alarm
(active/reactive/apparent)
0.00 to
threshold (ON/OFF)
999999999.999 [kW/kvar/kVA]
(OUT1,OUT2,OUT3,OUT4)
PF alarm threshold (ON/OFF)
0.000 to 1.000
(OUT1,OUT2,OUT3,OUT4)
Over frequency alarm
threshold (ON/OFF)
(OUT1,OUT2,OUT3,OUT4)
0.00 to 100.00 [Hz]
Under frequency alarm
threshold (ON/OFF)
(OUT1,OUT2,OUT3,OUT4)
Voltage harmonics
alarm threshold (ON/OFF)
(OUT1,OUT2,OUT3,OUT4)
Current harmonics
alarm threshold (ON/OFF)
(OUT1,OUT2,OUT3,OUT4)
0.00 to 400.0 [%]
Current THD alarm threshold
(ON/OFF)
(OUT1,OUT2,OUT3,OUT4)
Voltage THD alarm threshold
(ON/OFF)
(OUT1,OUT2,OUT3,OUT4)
Voltage unbalancing alarm
threshold (ON/OFF)
(OUT1,OUT2,OUT3,OUT4)
0.00 to 300.00 [%]
Current unbalancing alarm
threshold (ON/OFF)
(OUT1,OUT2,OUT3,OUT4)
Power demand alarm power
Active, Reactive, Apparent,
type (ON/OFF)
Active(Export), Reactive(Export)
(OUT1,OUT2,OUT3,OUT4)
Power demand alarm
0.000 to
threshold(ON/OFF)
99999.999 [kW/kvar/kVA]
(OUT1,OUT2,OUT3,OUT4)
Current demand alarm
threshold
0.0 to 120.0 [%]
(OUT1,OUT2,OUT3,OUT4)
Preset value
0 to 999999
(OUT1,OUT2,OUT3,OUT4)
Digital conversion value upper
limit alarm threshold (ON/OFF)
-999999999 to 999999999
(OUT1,OUT2,OUT3,OUT4) *1
Digital conversion value lower
limit alarm threshold (ON/OFF)
-999999999 to 999999999
(OUT1,OUT2,OUT3,OUT4) *1
Temperature upper limit alarm
threshold (ON/OFF)
-200.0 to 200.0[C]
(OUT1,OUT2,OUT3,OUT4)
Temperature lower limit alarm
threshold(ON/OFF)
-200.0 to 200.0[C]
(OUT1,OUT2,OUT3,OUT4)
*1 Decimal point differs according to setting of AD setup.
25
Initial value
Setting
Keys Web
999999999.999
0.000
100.00
0.00
400.00
300.00
Active
0
0
0
999999999
999999999
200.0
-200.0
－
○
KW2M Eco-POWER METER
◆Parameters for communication (RS485)
Item
Range
Protocol
MEWTOCOL, MODBUS(RTU),
MEWTOCOL
Device number
Transmission speed
Transmission format
Stop bit
Response time
1 to 99
MODBUS(RTU)
1 to 247
38400, 19200, 9600,4800, 2400, 57600,
115200 [bps]
8b-o(8bit odd), 8b-n(8bit none),
8bit-E(8bit even)
1,2
1 to 99 [ms]
◆Parameters for communication (Ethernet)
Item
MEWTOCOL
MODBUS(TCP)
Use
Protocol
Port number
Use
Protocol
Port number
DHCP
IP address
○: Available －: Not available
Setting
Initial value
Keys Web
MEWTOCOL
Range
Available, Not available
TCP,UDP
1024 to 65535
Available, Not available
TCP,UDP
502,1024 to 65535
Yes (available),
No (not available)
Fixed IP
address
1
19200
○
○
8b-o
1
5
○: Available －: Not available
Setting
Initial value
Keys Web
Available
TCP
－
9094
Available
TCP
－
502
No
192.168.1.5
○
1.0.0.0 to 255.255.255.255
DNS server
FTP Server *1
Web server
Subnet mask
Default
gateway
Acquisition
method
DNS server
Use
Port number
Administrator
name
255.255.255.0
192.168.1.1
Auto-setting, Manual-setting
0.0.0.0 to 255.255.255.255
Available, Not available
21,1024 to 65535
half-width alphanumeric
(64-letter)
half-width alphanumeric
Password
(16-letter)
Web server
Yes (available),
settings
No (not available)
User name
half-width alphanumeric
(administrator)
(64-letter)
Password
half-width alphanumeric
(administrator)
(16-letter)
Use Password Yes (available),
(standard user) No (not available)
User name
half-width alphanumeric
(standard user) (64-letter)
Password
half-width alphanumeric
(standard user) (16-letter)
Customer Web Yes (available),
settings
No (not available)
*1 only KW2M-X
26
Auto-setting
－
0.0.0.0
Available
21
－
－
admin
－
admin
－
Yes
○
admin
－
admin
－
Yes
user
－
user
－
Yes
－
○
KW2M Eco-POWER METER
◆Parameters for logging (only KW2M-X)
Item
Save measurement log
Save demand log
Use
Server
FTP Client
Access folder
User name
Password
Upload time
Retry interval
Retry
Connection
time out
Upload data
Use
Customized
logging data
select
Item
Range
○: Available －: Not available
Setting
Initial value
Keys Web
Not available
Not available
Not available
Available, Not available
Available, Not available
Available, Not available
0.0.0.0 to 255.255.255.255 or
domain name(64-letter)
half-width alphanumeric (64-letter)
half-width alphanumeric (64-letter)
half-width alphanumeric (16-letter)
00:00:00 to 23:59:59
0 to 60[min]
0 to 10[times]
1 to 75[sec]
192.168.1.5
/Log
ftpcuser
ftpcuser
00:00:00
10
3
10
Measurement log
Yes, No
No
Demand log
Yes, No
Available, Not available
Not available
Integral active power(1), (2), (3),
Total integral active power,
Integral reactive power(1), (2), (3),
Total integral reactive power,
Integral apparent power(1), (2), (3),
Total integral apparent power,
Export active power(1), (2), (3),
Total export active power,
Export reactive power(1), (2), (3),
Total export reactive power,
Instantaneous active power(1), (2), (3),
Total instantaneous active power,
Instantaneous reactive power(1), (2), (3),
Total instantaneous reactive power,
Instantaneous apparent power(1), (2), (3),
Total instantaneous apparent power,
R-current, S-current, T-current,
N-current, Average of current,
－
R-voltage (L1-N), S-voltage (L2-N),
T-voltage (L3-N), Average of
phase-voltage, RS-voltage (L1-L2),
ST-voltage (L2-L3), TR-voltage (L3-L1),
Average of line-voltage,
Power factor(1), (2), (3),
Average of power factor,
Frequency(1), (2), (3),
Average of frequency,
Current THD(1), (2), (3),
Average of current THD,
Phase-voltage THD(1), (2), (3),
Average of phase-voltage THD,
Line-voltage THD(1), (2), (3),
Average of line-voltage THD,
ON-time, OFF-time, Stand-by time,
Maintenance-time, Pulse count value
27
－
○
KW2M Eco-POWER METER
Digital conversion value1,
Digital conversion value2,
Digital conversion value3,
Temperature1, Temperature2
Pulse count 1, Pulse count 2,
Leakage current 1,
Leakage current 2,
Leakage current 3
◆Parameters for time program (only KW2M-X)
Item
Program 1
Program 2
Program 3
Program 4
Program 5
Program 6
Program 7
Program 8
Program 9
Program 10
Range
time-zone
start-time
time-zone
start-time
time-zone
start-time
time-zone
start-time
time-zone
start-time
time-zone
start-time
time-zone
start-time
time-zone
start-time
time-zone
start-time
time-zone
start-time
T1, T2, T3, T4, OFF
00:00 to 23:59
T1, T2, T3, T4, OFF
00:00 to 23:59
T1, T2, T3, T4, OFF
00:00 to 23:59
T1, T2, T3, T4, OFF
00:00 to 23:59
T1, T2, T3, T4, OFF
00:00 to 23:59
T1, T2, T3, T4, OFF
00:00 to 23:59
T1, T2, T3, T4, OFF
00:00 to 23:59
T1, T2, T3, T4, OFF
00:00 to 23:59
T1, T2, T3, T4, OFF
00:00 to 23:59
T1, T2, T3, T4, OFF
00:00 to 23:59
28
－
－
○
○: Available －: Not available
Setting
Initial value
Keys Web
T4
00:00
T3
6:00
T2
8:00
T1
10:00
T2
12:00
○
－
T1
14:00
T2
16:00
T3
22:00
OFF
―
OFF
―
KW2M Eco-POWER METER
0
1
2
3
4
5
6
7
8
10
11
3-term(PG-3)
T2
T3
T4
9
12
13
4-term(PG-4)
T1
14
15
5-term(PG-5)
17
18
19
20
21
22
23
24
7-term(PG-7)
8-term(PG-8)
2-term(PG-2)
1-term(PG-1)
◆Parameters for Calendar timer (only KW2M-X)
Item
Range
Calendar timer
January 1st, 2015 00:00:00
to December 31st, 2099 23:59:59
Time-zone
UTC-12:00 to UTC+14:00
Use
Port Number
Access Time
SNTP
16
6-term(PG-6)
Server
Retry interval
Retry times
Available, Not available
123, 1204 to 65535
00:00:00 to 23:59:59
0.0.0.0 to 255.255.255.255 or
half-width alphanumeric (32-letter)
0 to 60[min]
0 to 10[times]
◆Parameters for optional functions
Item
Auto-off
Display update cycle
Reset all integral value
Reset integral value 1
Reset integral value 2
Reset integral value 3
Reset hour meter
Reset count value
Reset logging data
Reset Memory *1
Version
*1 only KW2M-X
Range
0 to 99 [min.]
0.5, 1.0, 2.0, 3.0 [sec.]
Yes, No
Yes, No
Yes, No
Yes, No
Yes, No
Yes, No
Yes, No
Yes, No
◆Password
Item
Password change
Range
0000 to 9999
○: Available －: Not available
Setting
Initial value
Keys Web
○
UTC+9:00
Not available
123
00:00:00
192.168.1.5
－
10
3
○: Available －: Not available
Setting
Initial value
Keys Web
1
1.0 sec
No
No
No
○
○
No
No
No
No
No
○
○
○: Available －: Not available
Setting
Initial value
Keys Web
0000
29
○
○
－
KW2M Eco-POWER METER
4.1 Setting Flow
Arrow mark means press each key
◆Main unit, Expansion unit (Power measurement))
Items with * are only for Main unit-CH1.
Measuring value display
Enter password
Setting mode
【Power
measurement】
【Communication】
(RS485) *
【Communication】
(Ethernet) *
Phase/Wire
Protocol *
DHCP setting *2
CT setting
Device number *
IP address *
Voltage setting *1
Transmission speed *
Subnet mask *
Unit type *3
Transmission format *
Default gateway *
Stop bit *
Web server settings *
【Optional functions】
【Calendar timer】
【Password】
(To next page)
Response time *
*1 ‘Voltage setting’ is common to main unit CH1, CH2, expansion unit (power measurement) CH1, CH2.
*2 ‘IP address’ and ‘Subnet mask’ are skipped when ‘DHCP setting’ is set to available.
*3 Only for expansion unit (power measurement) CH2
30
KW2M Eco-POWER METER
Setting mode
【Communication】
【Optional functions】
【Calendar timer】*1
【Password】
Auto-off
Time-zone
Password
setting
Display update cycle
Clock
(From previous page)
Reset all integral value
Reset count value
Reset integral value 1
Reset hour meter
Reset integral value 2
Reset logging data
Reset integral value 3
Version
Confirmation mode
Setting confirmation
Setting confirmation
No
Yes
Measuring value display
Press during each item is displayed to change the setting value.
Press to display the confirmation window. Select [Yes] and press to decide the setting
value. However no value is changed, the confirmation window is skipped and it displays the measuring
value display.
*1 only KW2M-X
31
KW2M Eco-POWER METER
◆Expansion unit (Power measurement) ) *Only when ‘Unit type’ is set to ’LEAK’.
Measuring value display
Enter password
Setting mode
【Leak
measurement】
【Optional function】
CT setting
CT1
CT setting
CT2
CT setting
CT3
Leak measurement
CT1
Leak measurement
CT2
Leak measurement
CT3
Version
Unit type
Confirmation mode
Setting confirmation
Setting confirmation
No
Yes
Measuring value display
Press during each item is displayed to change the setting value.
Press to display the confirmation window. Select [Yes] and press to decide the setting
value. However no value is changed, the confirmation window is skipped and it displays the measuring
value display.
32
KW2M Eco-POWER METER
◆Expansion unit (Multi analog input)
Measuring value display
Enter password
Setting mode
【Analog
measurement】
【Optional function】
Input range 1
Input range 2
Input range 3
Scaling 1
MIN/MAX
Scaling 2
MIN/MAX
Scaling 3
MIN/MAX
Point position 1
Point position 2
Point position 3
Shift average
frequency 1
Shift average
frequency 2
Shift average
frequency 3
Confirmation mode
Setting confirmation
Setting confirmation
No
Yes
Version
Measuring value display
Press during each item is displayed to change the setting value.
Press to display the confirmation window. Select [Yes] and press to decide the setting
value. However no value is changed, the confirmation window is skipped and it displays the measuring
value display.
33
KW2M Eco-POWER METER
◆Expansion unit (Digital I/O)
Measuring value
display
Enter password
【Optional function】
Reset count value 1
Reset count value 2
Version
Confirmation mode
Setting confirmation
Setting confirmation
No
Yes
Measuring value display
Press during each item is displayed to change the setting value.
Press to display the confirmation window. Select [Yes] and press to decide the setting
value. However no value is changed, the confirmation window is skipped and it displays the measuring
value display.
34
KW2M Eco-POWER METER
4.2 Password Entry
It is necessary to enter password to shift to setting mode.
Enter [0000] and shift to password setting mode when you set password at the first time.
*When setting password, be careful for handling and note it.
Measuring value display
Press and it shifts to password entry window.
↓
M
- 1
P a s s w o r d
0 - - -
Enter password from left to right using ,
.
Increase
Shift entered digit to the right
↓
Press after enter the password.
M
- 1
P o w e r
If the password is correct, it shift to setting mode of power
measurement.
If the password is wrong, [FAIL] is displayed and it returns to the password entry window.
*If you make wrong password 5 times, you can’t set 1-hour after.
M
- 1
P a s s w o r d
F a i l
35
KW2M Eco-POWER METER
4.3 Password Initialize
When you forget the password, initialize it in the following procedures. (Initial: [0000])
It is impossible to decode the set password.
Measuring value display
Press and it shifts to password entry window.
↓
M
- 1
P a s s w o r d
0 - - -
Press and for 30 seconds in the
password entry window, and it shift to the password
initialize window.
↓+ 30sec.
M
- 1
P a s s w o r d
R e s e t
↓
M
- 1
P a s s w o r d
R e s e t
N o
M
- 1
P a s s w o r d
R e s e t
Y e s
↓
↓
Return to the measuring value display
36
Not initialize : [No]
Initialize
: [Yes]
KW2M Eco-POWER METER
4.4 How to Set by Keys
■Set before measuring.
Select setting item with and press , and the value will be blinking.
Set with and .
When you select [Yes] with the confirmation window and press , the setting values are settled.
Setting items with (※) can be set to each CH and each unit.
4.4.1 Settings for power measurement
*Only for Main unit and Expansion unit (Power measurement)
Phase/Wire system
(※)
Select phase/wire system to measure.
Press , to select.
M
- 1
P o w e r
S y s t e m
1 P 2
W
[Set list]
1P2W, 1P3W, 3P3W, 3P4W (initial: 1P2W)
*When the system is not matched with the measure
system, it doesn’t measure correctly.
CT setting
Select using CT type.
(※)
Press , to select primary or secondary.
M
- 1
P r i m a r y
S e c o n d a r y
P o w e r
C T
5 A
5 A
Press , to set.
[Set range]
Primary side : 1 to 65535 (initial:5)
Secondary side: 5 (5A), 1 (1A) (initial: 5)
＞
SHIFT
Increase
ITEM
＞
decrease
To use CT with secondary side current 5A: [5]
To use CT with secondary side current 1A: [1]
Voltage setting
Set the rated voltage to measure.
Press , to select primary or secondary.
- 1
P r i m a r y
S e c o n d a r y
P o w e
V
2 3 0
2 3 0
r
T
V
V
Press , to set the voltage.
[Set range]
Primary side : 100 to 500000 (initial:230)
Secondary side: 100 to 690 (initial:230)
*Set the rated voltage when it doesn’t use VT.
SHIFT
＞
M
Increase
ITEM
＞
decrease
37
KW2M Eco-POWER METER
Unit type
Select the measured type.
*Only Expansion unit (Power measurement) CH2
Press , to select.
1 - 1
Powe r
Un i t T y p e
[Set list]
Power, Leak (initial: Power)
Powe r
4.4.2 Settings for leakage current measurement
*It is only when ‘LEAK’ is selected on Unit type.
CT setting
Select using CT type.
Press , to select primary or secondary.
1 - 2
P r i m a r y
S e c o n d a r y
L e a k
C H 1
C T
6 5 5 3 5 A
5 A
Press , to set.
[Set range]
Primary side : 1 to 65535 (initial:5)
Secondary side: 5 (5A), 1 (1A) (initial: 5)
＞
SHIFT
Increase
ITEM
＞
decrease
To use CT with secondary side current 5A: [5]
To use CT with secondary side current 1A: [1]
Leak measurement
Set conditions to detect leakage current.
Press , to select threshold or delay time.
1 - 2
L
CH 1
L ea k m e as u r
T h r e s h o l d
0 .
D e l a y
t i m e
0
e a k
e
0 1 %
. 1 s
Press , to set.
[Set range]
Threshold: 0.01 to 100.00[%] (initial: 100%)
Delay time:0.1 to 20.0[s] (initial:20.0s)
＞
SHIFT
Increase
ITEM
＞
decrease
Unit type
*Only for expansion unit (power measurement) CH2
Select measuring mode.
Press , to select.
1 - 1
U n i t
L e a k
T y p e
L e a k
[Set list]
Power, Leak (initial: Power)
38
KW2M Eco-POWER METER
4.4.3 Settings for analog measurement
*Only for Expansion unit (Multi analog input)
Input range
Select input range.
Press , to select.
1 - 1
C H 1
A n a l o g
I n p ut
r an g
0 - 6 0 V
[Set list]
0-60V, 0-20mA, 4-20mA (initial: 0-60V)
Scaling value
Set max. value and min. value for scaling.
Press , to select minimum or maximum.
1 - 1
C H 1
M
M
i n
a x
A n a l o g
Sc a l i n g
0
4 0 0 0
Press , to set.
[Set range]
Minimum: -999999999 to 999999999 (initial:0)
Maximum: -999999999 to 999999999 (initial:4000)
＞
SHIFT
Increase
ITEM
＞
decrease
Point position
Select the decimal point position for measurement value display.
Press , to select.
1 - 1
CH 1
p oi n t
A n a l o g
p os i t i o n
1
[Set list]
0.0001, 0.001, 0.01, 0.1, 1 (initial: 1)
Shift average frequency
Select shift average frequency.
Press , to select.
1 - 1
C H 1
A n a l o g
Av e r ag e
0
[Set list]
0, 2, 4, 8, 16 (initial: 8)
RTD type
Select RTD type.
Press , to select.
1 - 1
A n a l o g
RT D
P T 1 0 0
[Set list]
PT100, PT1000 (initial: PT100)
39
KW2M Eco-POWER METER
4.4.4 Settings for communication (RS485) *Only for Main unit
Protocol
Select protocol of main unit via serial communication (RS485).
*When protocol is changed, device number, transmission speed (baud rate), transmission format, stop
bit and response time will be initialized.
M
- 1
R S 4 8 5
C O M
P r o t o c o l
M
E
W
T OCO L
Press , to select.
[Set list]
MEWTOCOL, MODBUS(RTU)
(initial: MEWTOCOL)
Device number
Set an individual device number for each unit when two or more units are connected to
communicate via serial communication (RS485).
M
- 1
C O M
R S 4 8 5
N o
9 9
Press , to set.
The setting range differs according to the protocol.
[Set range]
＞
SHIFT
MEWTOCOL: 1 to 99
MODBUS(RTU): 1 to 247
increase
ITEM
＞
decrease
Transmission speed (Baud rate)
Select the serial communication (RS485) transmission speed.
Define the transmission speed according to the master’s (PLC etc.).
Press , to select.
M
- 1
C O M
R S 4 8 5
S p e e d
3 8 4 0 0 b p s
[Set list]
2400, 4800, 9600, 19200, 38400, 57600, 115200 [bps]
(initial: 19200)
40
KW2M Eco-POWER METER
Transmission format
Select serial communication (RS485) transmission format (Data length, Parity).
Define the transmission format according to the master’s (PLC etc.).
Press , to select.
M
- 1
R S 4 8 5
C O M
F or
m
a t
8 b i t - o
[Set list]
8b-o (8bit odd), 8b-n (8bit none), 8b-E (8bit even)
(initial: 8b-o)
Stop bit
Select serial communication (RS485) stop bit.
Press , to select.
M
- 1
C O M
R S 4 8 5
St o p
b i t
[Set list] 1, 2 (initial: 1)
1 b i t
Response time
Set serial communication (RS485) response time of main unit.
When command is received, it sends response after setting response time passes.
Press , to set.
- 1
C O M
R e s p o n s e
R S 4 8 5
T i
5
m
e
m
s
[Set range] 1 to 99 ms (initial: 5)
SHIFT
＞
M
increase
ITEM
＞
decrease
* If Data Logger Unit (DLU) or Data Logger Light (DLL) is used as a master, set the response time to
5ms or more because DLU or DLL send the response after 1.1ms or less from receive a command
when transmission speed is set to 19200bps.
41
KW2M Eco-POWER METER
4.4.5 Settings for communication (Ethernet)
DHCP setting
Select DHCP for Ethernet communication.
*Only for Main unit
Press , to select.
M
- 1
C O M
E t h e r n e t
DH C P
[Set list] Yes (available), No (not available)
(initial: No)
N o
IP address
*It skips this item when [Yes] is set for DHCP setting.
Set IP address for Ethernet communication.
Press , to set.
M
- 1
C O M
E t h e r n e t
I P A d r e s s
1 9 2 . 1 6 8 . 0 0 1 . 0 0 5
[Set range]
＞
SHIFT
0. 0. 0. 0 to 255. 255. 255. 255
(initial: 192.168.1.5)
increase
ITEM
＞
decrease
Subnet mask
*It skips this item when [Yes] is set for DHCP setting.
Set subnet mask for Ethernet communication.
Press , to set.
- 1
E t h e r n e t
m a s k
Su b n e t
C O M
2 5 5 . 2 5 5 . 2 5 5 . 0 0 0
[Set range]
SHIFT
128. 000. 000. 000 to 255. 255. 255. 255
(initial: 255.255.255.0)
＞
M
increase
ITEM
＞
decrease
42
KW2M Eco-POWER METER
Default Gateway
*It skips this item when [Yes] is set for DHCP setting.
Set default gateway for Ethernet communication.
Press , to set.
M
- 1
E t h e r n e t
G a t e w a y
D e f u a l t
C O M
1 9 2 . 1 6 8 . 0 0 1 . 0 0 1
[Set range]
＞
SHIFT
0. 0. 0. 0 to 255. 255. 255.255
(initial: 192.168.1.1)
increase
ITEM
＞
decrease
Web server setting
Select Web server setting for Ethernet communication.
Press , to select.
M
- 1
C O M
W
E t h e r n e t
eb
S er v e r
[Set list]
Yes (available), No (not available)
Y e s
43
(initial: Yes)
KW2M Eco-POWER METER
4.4.6 Settings for optional functions
Auto-off
*Only for Main unit
Display backlight turns off automatically when there is no key operation for a long time.
After it passes the setting time, backlight will turn off.
Press , to set.
M
- 1
O p t i o n
O F F
A u t o
5
m
[Set range] 0 to 99 min. (initial:5)
i n
SHIFT
＞
increase
ITEM
＞
decrease
Always turn on
: [0]
Turn off after setting time: [1 to 99]
After turns off the backlight, any key operation makes it turns on.
Update cycle
*Only for Main unit
Select update cycle for measuring window.
It updates the display of measured values every setting time.
Press , to select.
M
- 1
O p t i o n
D i s p l a y
u p d at e
[Set list] 0.5, 1.0, 2.0, 3.0 [s] (initial:1.0)
0 . 5 s
Reset all integral value
*Only for Main unit and Expansion unit (Power measurement)
Integral power (active, reactive, apparent) can be reset at one time.
Press , to select.
M
- 1
O p t i o n
A l l
R e s e t
[Set list] Yes, No (initial: No)
Y e s
Reset all : [Yes]
Not reset : [No]
Reset integral value 1
*Only for Main unit and Expansion unit (Power measurement)
*It skips this item when [Yes] is selected for reset all integral value.
Reset the integral power of 1CH/1-phase (active, reactive, apparent) and integral export power
of 1CH/1-phase (active, reactive).
Press , to select.
M
- 1
O p t i o n
R e s e t
1
Y e s
[Set list] Yes, No (initial: No)
Reset
: [Yes]
Not reset : [No]
44
KW2M Eco-POWER METER
Reset integral value 2
*Only for Main unit and Expansion unit (Power measurement)
*It skips this item when [Yes] is selected for reset all integral value.
Reset the integral power of 2CH/2-phase (active, reactive, apparent) and integral export power
of 2CH/2-phase (active, reactive).
Press , to select.
M
- 1
O p t i o n
R e s e t
2
Y e s
[Set list] Yes, No (initial: No)
Reset
: [Yes]
Not reset : [No]
Reset integral value 3
*Only for Main unit and Expansion unit (Power measurement)
*It skips this item when [Yes] is selected for reset all integral value.
Reset the integral power of 3CH/3-phase (active, reactive, apparent) and integral export power
of 3CH/3-phase (active, reactive).
Press , to select.
M
- 1
O p t i o n
R e s e t
3
Y e s
[Set list] Yes, No (initial: No)
Reset
: [Yes]
Not reset : [No]
Reset count value
*Only for Main unit and Expansion unit (Power measurement)
*It skips this item when [Yes] is selected for reset all integral value.
Reset the count value.
Press , to select.
M
- 1
O p t i o n
R e s e t
C o u n t
Y e s
[Set list] Yes, No (initial: No)
Reset
: [Yes]
Not reset : [No]
Reset count value 1
*Only for Expansion unit (Digital I/O)
Reset the count value 1 of expansion unit (digital I/O).
Press , to select.
1 - 1
Res e t
Op t i o n
Co un t 1
[Set list] Yes, No (initial: No)
Ye s
Reset
: [Yes]
Not reset : [No]
45
KW2M Eco-POWER METER
Reset count value 2
*Only for Expansion unit (Digital I/O)
Reset the count value 2 of expansion unit (digital I/O).
Press , to select.
1 - 1
Op t i o n
Res e t Co un t 2
[Set list] Yes, No (initial: No)
Ye s
Reset
: [Yes]
Not reset : [No]
Reset hour meter
*Only for Main unit and Expansion unit (Power measurement)
*It skips this item when [Yes] is selected for reset all integral value.
Reset the values of measured by hour meter, ON-time, OFF-time, Stand-by-time, and
Maintenance-time.
Press , to select.
M
- 1
O p t i o n
R e s e t
Ho u r
M
e t e r
Y e s
[Set list] Yes, No (initial: No)
Reset
: [Yes]
Not reset : [No]
Reset log data
*Only for Main unit and Expansion unit (Power measurement)
*It skips this item when [Yes] is selected for reset all integral value.
Reset all log data.
Press , to select.
M
- 1
O p t i o n
R e s e t
L o g
Y e s
[Set list] Yes, No (initial: No)
Reset
: [Yes]
Not reset : [No]
Reset Memory (only KW2M-X)
Delete logging data (CSV file).
Press , to select.
M
- 1
O p t i o n
R e s e t
M
e
m
o r y
Y e s
[Set list] Yes, No (initial: No)
Reset
: [Yes]
Not reset : [No]
46
KW2M Eco-POWER METER
Version
You can check the software version.
M
- 1
V e r s i o n
It displays the software version.
B a s e
0 . 1 7
47
KW2M Eco-POWER METER
4.4.7 Settings for calendar timer (only KW2M-X)
Time-zone
Set time-zone based on UTC standard.
Press , to select.
M
- 1
T i m e
C l o c k
z o n e
[Set list] UTC-12:00 to UTC+14:00(initial: UTC+9:00)
U T C +
0 8 : 3 0
Clock
Set year, month, day and time.
Set the date and time to use logging function.
M
- 1
C l o c k
2 0 1 5 / 0 1/ 0 1
0 0 : 0 0 : 3 0
Press and year, month, date, time are blinking
in turn.
With blinking the setting item and press and
.
[Setting range]
January 1st, 2015 00:00:00
to December 31st, 2099 23:59:59
Caution;
The timing when the calendar timer is settled to the unit is the timing when you select [YES] with the
confirmation window and press .
It doesn’t set the calendar timer to the unit when you press with calendar timer setting window.
Give your attention when you set time by second.
48
KW2M Eco-POWER METER
4.4.8 Password setting
Password setting
You can set password for changing the settings.
It is necessary to enter the password before moving the setting mode.
We recommend you to set password to avoid unexpected change.
M
- 2
P as s w o r d
Press and [0] on the left is blinking.
Set password using , .
0 0 0 0
＞
SHIFT
ITEM
＞
Increase
Shift entered digit to the right
Set from left to right. Make the digit to set blink.
[Set range] 0000 to 9999 (initial: 0000)
M
- 2
P as s w o r d
2 3 4 5
Set 4-digit password and press
After that the confirm window is displayed.
↓
M
- 2
P as s w o r d
M
ITEM
＞
- 2
P as s w o r d
Y e s
2 3 4 5
N o
2 3 4 5
[Set list] Yes, No (initial: N0)
Confirm: [Yes]
Not confirm: [No]
49
KW2M Eco-POWER METER
4.4.9 Confirmation window
Press at any setting window and it shifts to confirmation window.
Setting mode
↓
- 2
M
SHIFT
- 2
＞
M
S e t
A l l
N o
S e t
ITEM
＞
A l l
Y e s
Confirm the change: [Yes]
Cancel the change: [No]
(initial: No)
Cancel
Confirm
P l e a s e W a i t
No w
S e t t i n g
D a t a
> > >
Measuring value display
50
KW2M Eco-POWER METER
4.5 How to Set by Web Browser (System Web)
You can set by using Web browser.
Access to ‘http://xxx.xxx.xxx.xxx/setup/index.htm’. Put the setting IP address to ‘xxx.xxx.xxx.xxx’.
It is necessary to enter user name and password to access the website.
(Initial user name: admin, initial password: admin)
It may take time to get the website according to the communication environment.
4.5.1 Setting item
Select item from tabs to set
1
2
3
4
5
6
7
8
9
10
51
KW2M Eco-POWER METER
1
Item
Measurement
Description
Set parameters related to power measurement
2
Demand / Power Rates
Set parameters related to demand, conversion rate
3
Log *1
Set parameters related to log
4
Input
Set parameters related to pulse input
5
Output
Set parameters related to pulse output
6
Interface
Set parameters related to Ethernet and RS485 communication
7
System setup
Set parameters related to system
8
Version
Confirm version information
9
Write→KW2M
Write parameters to Eco-POWER METER
10 Read←KW2M
*1 only KW2M-X
Read out parameters from Eco-POWER METER
52
KW2M Eco-POWER METER
4.5.2 Settings for power measurement
1
8
7
2
4
5
9
10
6
3
11
1
2
3
Item
Select unit and CH
Phase/Wire system
Cutoff current
4
Hour meter
5
Simple measuring
Description
Select unit and CH to set.
Select phase and wire system to power measurement.
1P2W, 1P3W, 3P3W, 3P4W (initial: 1P2W)
Set a ratio of current for rated current used for cutoff that is not
measured.
0.1 to 50.0% (initial:0.1)
Set target phase, ratio for rated current use to measure
ON-time and standby time.
Check box of [Power OFF Time], it measures as OFF-time
when Eco-POWER METER turns off.
*only KW2M-X supports standby time and power off time.
Target phase : Phase1, Phase2, Phase3, ALL (initial:Phase1)
Threshold(ON Threshold) : 0.1 to 100.0% (initial:10.0)
Standby Threshold *1 : 0.1 to 100.0% (initial:0.1)
Power OFF Time *1 : Yes, No (initial: No)
Select mode and set parameters for simple measuring.
Type:
OFF (no use)
VLT/PF Fixed (Use actual current with fixed voltage and PF)
Single CT (Use phase 1 current and all voltage)
(initial: OFF)
VLT* : 0.0 to 500000.0V
(initial:230V)
PF* : 0.000 to 1.000
(initial:1.000)
* VLT and PF can be set when ‘VLT/PF Fixed’ is selected.
53
KW2M Eco-POWER METER
6
7
CT
VT*2
8
Over current*3
9
Under current*3
10
Over Voltage*3
11
Under Voltage*3
Set parameters of CT.
Primary side : 1 to 65535 (initial:5)
Secondary side: 5 (5A), 1 (1A) (initial: 5)
Set parameters of VT when VT is used.
When VT is not used, set parameters of rated voltage to
measure.
Primary side : 100 to 500000 (initial:230)
Secondary side: 100 to 690 (initial:230)
Set a ratio of current for rated current used for threshold to
judge over current.
0.0 to 120.0% (initial:0.0)
Set a ratio of voltage for rated voltage used for threshold to
judge over voltage.
< Range >
0.0 to 120.0% (initial:0.0)
*1 only KW2M-X
*2 Common to unit and CH.
*3 For KW2M-A, it is common to unit and CH. For KW2M-X, it set for unit and each CH.
54
KW2M Eco-POWER METER
4.5.3 Setting for leakage current measurement
1
2
3
Item
1
2
3
Description
CT
Set parameters of CT.
Leak measurement
Primary side : 1 to 65535 (initial:5)
Secondary side: 5 (5A), 1 (1A) (initial: 5)
Set a ratio for rated value used for threshold to judge leakage.
Delay time
0.01 to 100.00% (initial:100.0)
Set on delay time, from the time it exceeds the threshold to it
output alarm.
0.1 to 20.0s (initial:20.0)
55
KW2M Eco-POWER METER
4.5.4 Settings for AD conversion
1
2
3
4
1
Item
Input range
2
Scaling
3
Point position
4
Shift average frequency
Description
Select input range
0-60V, 0-20mA, 4-20mA (initial: 0-60V)
Set scaling for analog conversion
Min : -999999999 to 999999999 (initial:0)
Max : -999999999 to 999999999 (initial:4000)
Select the decimal point for measurement value display
It effects to digital conversion value, scaling max. value and
scaling min. value.
1, 0.1, 0.01, 0.001, 0.0001 (initial:0.0001)
Select shift average frequency for measurement value
When you select the bigger average frequency, you can
suppress the unevenness.
0, 2, 4, 8, 16 (initial: 8)
56
KW2M Eco-POWER METER
4.5.5 Settings for RTD measurement
1
1
Item
Sensor type
Description
Select sensor type for temperature measurement
PT100, PT1000 (initial: PT100)
57
KW2M Eco-POWER METER
4.5.6 Settings for demand and power rates
Click ‘
’ to shift window of ‘Demand Setup’ and ‘Conversion rate Setup’.
[Demand Setup]
5
1
2
3
4
1
Item
Power demand type
Description
Select type of power demand measurement.
Sliding block, Fixed block (initial: Sliding block)
2
3
4
5
Power demand interval
Power input source *1
Set interval time to use for power demand measurement.
Power demand interval 1 : 1 to 60min (initial:15)
Power demand interval 2 : 1 to 60min (initial:1)
Select input type to use for demand measurement, current
measurement or pulse input.
Pulse-Power Conversion
Method *2
CT, Pulse (initial: CT)
Select and set electric power value per 1-pulse or pulse
constant value input by an outer pulse detector.
Current demand interval
Pulse rate : 0.001 to 100.000 kWh/pulse(initial:0.001)
Pulse constant : 1000 to 99000 pulse/kWh(initial:50000)
Set interval to use for current demand calculation.
< Range >
1 to 60min(initial:15)
*1 Power input source is setting for main unit CH1.
*2 Pulse-Power Conversion Method is available when [Pulse] is selected for ‘Power input source’.
58
KW2M Eco-POWER METER
[Combination Demand]
1
1
Item
Combination Demand
Description
Select channel to use for totalizing demand
59
KW2M Eco-POWER METER
[Conversion Rate Setup]
1
Image of KW2M-A
1
2
Image of KW2M-X
60
KW2M Eco-POWER METER
1
2
Item
Conversion rate Setup
Time Program Setup*1
Description
Set the conversion rate per integral active power (import and
export) 1 kWh.
< Range >
P/kWh : 0.01 to 99.99 (initial:10.00)
-P/kWh : 0.01 to 99.99 (initial:10.00)
You can set 10-type time program.
Set start time for each time zone, and use it link with
conversion rate.
Refer to 5.2 in detail.
Rate:T1, T2, T3, T4, OFF
Start-Time: 00:00 to 23:59
*1 only KW2M-X
61
KW2M Eco-POWER METER
4.5.7 Settings for log (only KW2M-X)
[Log Setup]
1
3
2
Item
1
Log item
Description
Select log item to save with .csv.
For measurement log, it saves the instantaneous value of
every 5-min and every 15-min.
For demand log, it saves demand value.
2
3
FTP Client
Upload data
Save measurement log : Yes, No(initial: No)
Save demand log : Yes, No(initial: No)
Set items related to upload log file to FTP server.
Log files are uploaded once a day at the designated time.
You can test to upload using [Transmission test].
Transmit log data to FTP server : Yes, No(initial: No)
Port number : 21, 1024 to 65535(initial:21)
Server name : 0.0.0.0 to 255.255.255.255 or
domain name(64-letter)
Access folder : half-width alphanumeric(64-letter)
User name : half-width alphanumeric(64-letter)
Password : half-width alphanumeric(16-letter)
Upload time : 00:00:00 to 23:59:59 (initial:00:00:00)
Retry interval : 0 to 60[min](initial:10)
Retry : 0 to 10[times](initial :3)
Connection time-out : 1 to 300(initial:10)
Select files to upload to FTP server.
You can select the target log files of each unit and CH.
62
KW2M Eco-POWER METER
[Customized log Setup] *1
1
Item
Logging Data Select
Description
Select items to be logged in one csv file, up to 8 items.
Integral active power(1), (2), (3), Total integral active power,
Integral reactive power(1), (2), (3), Total integral reactive power,
Integral apparent power(1), (2), (3),
Total integral apparent power,
Export active power(1), (2), (3), Total export active power,
Export reactive power(1), (2), (3), Total export reactive power,
Instantaneous active power(1), (2), (3),
Total instantaneous active power,
Instantaneous reactive power(1), (2), (3),
Total instantaneous reactive power,
Instantaneous apparent power(1), (2), (3),
Total instantaneous apparent power,
R-current, S-current, T-current, N-current, Average of current,
R-voltage (L1-N), S-voltage (L2-N), T-voltage (L3-N),
Average of phase-voltage, RS-voltage (L1-L2),
ST-voltage (L2-L3), TR-voltage (L3-L1), Average of line-voltage,
Power factor(1), (2), (3), Average of power factor,
Frequency(1), (2), (3), Average of frequency,
Current THD(1), (2), (3), Average of current THD,
Phase-voltage THD(1), (2), (3), Average of phase-voltage THD,
Line-voltage THD(1), (2), (3), Average of line-voltage THD,
ON-time, OFF-time, Stand-by time, Maintenance-time,
Pulse count value,
Digital conversion value1, Digital conversion value2,
Digital conversion value3, Temperature1, Temperature2
Pulse count 1, Pulse count 2,
Leakage current 1, Leakage current 2, Leakage current 3
*1 only KW2M-X main unit
63
KW2M Eco-POWER METER
4.5.8 Settings for pulse input (only Main unit and Expansion unit (Digital I/O)
1
2
5
3
Select ‘Clock sync.’ for Input type
Select ‘Hour meter maintenance’
for Input type
4
1
Item
Select CH
Select CH to set.
2
Input type
Select usage of input
Max counting speed
Pulse count, Clock sync.*1, Hour meter maintenance*1
(initial : Pulse count)
Select pulse input max. counting speed.
Pre-scale
< List >
30Hz, 2kHz (initial:30Hz)
Set pre-scale value used to convert count value of pulse input.
Synchronize time *1
< Range >
0.001 to 100.00 (initial:1.000)
Set time to synchronize when pulse is input.
3
4
5
Description
*The clock is different 1-hour or more from the setting time, it
doesn’t synchronize.
00:00 to 23:59(initial:00:00)
*1 only KW2M-X main unit
64
KW2M Eco-POWER METER
4.5.9 Settings for pulse output (only Main unit and Expansion unit (Digital I/O)
You can select the unit and CH to be measured for each CH of pulse output.
[Integral power pulse]
1
2
3
4
5
6
7
1
Item
Select CH
Select CH to set.
2
Output type
Select pulse output type.
Measured target
< List >
Integral power pulse, Alarm, Time control*1,General output
(initial: Integral power pulse)
Select unit and CH to measure.
Unit for output
< List >
Main Unit CH1, Main Unit CH2, Power Measurement CH1,
Power Measurement CH2*2 (initial:Main Unit CH1)
Set unit used for pulse output.
3
4
5
6
7
Direction
Target phase
Pulse width
Description
< List >
0.001, 0.01, 0.1, 1, 10, 100kWh (initial:0.001)
Select the direction of power (import or export) for using as a
threshold for pulse output.
< List >
P, -P (initial: P)
Select phase to monitor in order to judge the output.
* Select ‘Total’ when it measures 3P3W.
< List >
Phase1, Phase2, Phase3, Total (initial: Total)
Set pulse width.
< Range >
1 to 100ms (initial:1)
*1 only KW2M-X
*2 only when CH2 of expansion unit (power measurement) is set to measure power
65
KW2M Eco-POWER METER
[Alarm]
It differs the display according to the selected unit and CH.
●When you select main unit CH1, main unit CH2, expansion unit (power measurement) CH1 or
expansion unit (power measurement) CH2, set to power measurement.
With checks to several boxes, it output alarm when it meets one of these conditions.
1
2
13
3
15
14
16
4
17
5
18
6
19
7
9
8
20
21
10
22
11
23
12
24
1
2
3
Item
Select CH
Output type
Description
Select CH to set.
Select pulse output type.
Measured target
< List >
Integral power pulse, Alarm, General output
(initial: Integral power pulse)
Select unit and CH to measure.
It differs the display according to the selected item.
4
Stand-by power
< List >
Main Unit CH1, Main Unit CH2, Power Measurement CH1,
Power Measurement (Leak Measurement) CH2, Pulse IO,
Multi Measurement, Combination Demand
(initial:Main Unit CH1)
Select phase to monitor and set threshold to use for output.
Target phase : Phase1, Phase2, Phase3, ALL (initial: ALL)
Threshold: 0.1 to 100.0% (initial: 0.1%)
Elapsed: 0 to 9999min (initial: 0)
66
KW2M Eco-POWER METER
5
Item
Active power
6
Reactive power
7
Apparent power
8
Over current
9
Under current
10
Power interruption
11
Power factor
12
Count value
13
Over Voltage
14
Under Voltage
15
Over frequency
16
Under frequency
17
Current THD
18
Voltage THD
19
Current harmonics
20
Voltage harmonics
21
Current unbalancing
22
Voltage unbalancing
Description
Select phase to monitor and set threshold to use for output.
*Select ‘Total’ when measuring 3P3W.
Target phase:Phase1, Phase2, Phase3, ALL, Total
(initial: Total)
OFF threshold : 0.00 to 9999999999.99
(initial: 9999999999.99)
ON threshold : 0.00 to 9999999999.99 (initial: 9999999999.99)
Select phase to monitor.
*The threshold is the ratio that is set at ‘Setting for Power
Measurement’.
< List >
Target phase:Phase1, Phase2, Phase3, ALL (initial: ALL)
Select phase to monitor and set threshold to use for output.
*Select ‘All’ when measuring 3P3W.
< List & Range >
Target phase:Phase1, Phase2, Phase3, ALL (initial: ALL)
OFF threshold : 0.00 to 9999999999.99
(initial: 9999999999.99)
ON threshold : 0.00 to 9999999999.99 (initial: 9999999999.99)
Set a value of count to use for alarm output.
0 to 999999 (initial: 0)
Select phase to monitor.
*The threshold is the ratio that is set at ‘Setting for Power
Measurement’.
< List >
Target phase:Phase1, Phase2, Phase3, ALL (initial: ALL)
Select phase to monitor and set threshold to use for output.
< List & Range >
Target phase:Phase1, Phase2, Phase3, ALL (initial: ALL)
OFF threshold : 0.00 to 100.00Hz (initial:100.00)
ON threshold : 0.00 to 100.00Hz (initial:100.00)
Select phase to monitor and set threshold to use for output.
< List & Range >
Target phase:Phase1, Phase2, Phase3, ALL (initial: ALL)
OFF threshold : 0.00 to 400.00% (initial:400.00)
ON threshold : 0.00 to 400.00% (initial:400.00)
Select phase to monitor and set threshold to use for output.
< Range >
OFF threshold : 0.00 to 300.00% (initial:300.00)
ON threshold : 0.00 to 300.00% (initial:300.00)
67
KW2M Eco-POWER METER
23
24
Item
Power demand
Current demand
Description
Select demand type to monitor and set threshold to use for
output.
< List & Range >
Power Type : Active, Reactive, Apparent, Active(Export),
Reactive(Export) (initial: Active)
OFF threshold : 0.000 to 999999999.999
(initial:999999999.999)
ON threshold : 0.000 to 999999999.999
(initial:999999999.999)
Select phase to monitor and set threshold to use for output.
< List & Range >
Target phase:Phase1, Phase2, Phase3, ALL (initial: ALL)
OFF threshold : 0.00 to 120.00% (initial:0.00)
ON threshold : 0.00 to 120.00% (initial:0.00)
68
KW2M Eco-POWER METER
●When ‘Leak measurement CH2’ is selected with unit type
1
2
3
4
1
Item
Select CH *
Select CH to set.
2
Output type
Select pulse output type.
Measured target
< List >
Integral power pulse, Alarm, Time control*1,General output
(initial: Integral power pulse)
Select unit and CH to measure.
Monitor target
Main Unit CH1, Main Unit CH2, Power Measurement CH1,
Power Measurement (Leak Measurement) CH2, Pulse IO,
Multi Measurement, Combination Demand
(initial:Main Unit CH1)
Select circuit to monitor.
3
4
Description
*1 only KW2M-X
69
KW2M Eco-POWER METER
●When ‘Pulse I/O’ is selected for measured target
1
2
3
4
1
Item
Select CH *
Select CH to set.
2
Output type
Select pulse output type.
Measured target
< List >
Integral power pulse, Alarm, Time control*1,General output
(initial: Integral power pulse)
Select unit and CH to measure.
Monitor target
Main Unit CH1, Main Unit CH2, Power Measurement CH1,
Power Measurement (Leak Measurement) CH2, Pulse IO,
Multi Measurement, Combination Demand
(initial:Main Unit CH1)
Select circuit to monitor.
3
4
Description
*1 only KW2M-X
70
KW2M Eco-POWER METER
●When ‘Multi measurement’ is selected for measured target
1
2
3
4
6
5
7
1
Item
Select CH
Select CH to set.
2
Output type
Select pulse output type.
Measured target
Integral power pulse, Alarm, Time control*1, General output
(initial: integral power pulse)
Select unit and CH to measure.
4
AD upper limit
Main Unit CH1, Main Unit CH2, Power Measurement CH1,
Power Measurement (Leak Measurement) CH2, Pulse IO,
Multi Measurement, Combination Demand
(initial:Main Unit CH1)
Select CH to monitor and set threshold to use for output
5
AD lower limit
6
Temperature upper limit
7
Temperature lower limit
3
Description
OFF threshold : -999999999 to 999999999 (initial: 999999999)
ON threshold : -999999999 to 999999999 (initial: 999999999)
Select CH to monitor and set threshold to use for output
OFF threshold : -200.0 to 200.0 (initial: 200)
ON threshold : -200.0 to 200.0 (initial: 200)
*1 only KW2M-X
71
KW2M Eco-POWER METER
●When ‘Combination Demand’ is selected for measured target
1
2
3
4
1
2
3
4
Item
Select CH
Output type
Select CH to set.
Select pulse output type.
Measured target
Integral power pulse, Alarm, Time control*1, General output
(initial: integral power pulse)
Select unit and CH to measure.
Power demand
Description
Main Unit CH1, Main Unit CH2, Power Measurement CH1,
Power Measurement (Leak Measurement) CH2, Pulse IO,
Multi Measurement, Combination Demand
(initial:Main Unit CH1)
Select demand type to monitor and set threshold to use for
output.
< List & Range >
Power Type : Active, Reactive, Apparent, Active(Export),
Reactive(Export) (initial: Active)
OFF threshold : 0.000 to 999999999.999
(initial:999999999.999)
ON threshold : 0.000 to 999999999.999
(initial:999999999.999)
*1 only KW2M-X
72
KW2M Eco-POWER METER
[Time control] (only KW2M-X)
1
1
Item
Output-ON period
Description
Set time to output ON and OFF for each day.
Start : 00:00 to 24:00 (initial:00:00)
End : 00:00 to 24:00 (initial:00:00)
73
KW2M Eco-POWER METER
4.5.10 Settings for Ethernet and RS485 communication
Click ‘
’ to shift window of ‘Ethernet Setup’ and ‘RS485 Setup’.
[Ethernet Setup]
1
3
4
2
5
1
2
3
Item
IP address
DNS Server
MEWTOCOL-COM
Description
Select setting method of IP address.
When you set manually, IP address, subnet mask and default
gateway can be set by yourself.
< Range >
Setting IP address: Obtain an IP address automatically,
Use the following IP address
IP address: 001. 000. 000. 000 to 255. 255. 255. 255
(initial: 192.168.1.5)
Subnet mask: 128. 000. 000. 000 to 255. 255. 255. 255
(initial: 255.255.255.0)
Default gateway: 001. 000. 000. 000 to 255. 255. 255.255
(initial: 192.168.1.1)
Select setting method of DNS server
When you set manually, IP address of Preferred DNS and
Alternate DNS can be set by yourself.
Setting DNS server: Obtain DNS server address automatically
Use the following DNS server addresses
Preferred DNS: 0.0.0.0 to 255.255.255.255(initial:0.0.0.0)
Alternate DNS: 0.0.0.0 to 255.255.255.255(initial:0.0.0.0)
Set protocol and port number.
< List & Range >
Protocol: TCP, UDP (initial: TCP)
Port number: 1024 to 65535 (initial:9094)
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KW2M Eco-POWER METER
4
5
Item
MODBUS-TCP
Description
Set protocol and port number.
FTP Server
< List & Range >
Protocol: TCP, UDP (initial: TCP)
Port number: 502, 1024 to 65535 (initial:502)
Set FTP server.
Port number:21, 1024 to 65535(initial:21)
Administrator name : half-width alphanumeric (64-letter)
(initial: admin)
Password : half-width alphanumeric(16-letter)(initial: admin)
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KW2M Eco-POWER METER
[RS485 Setup]
1
2
3
4
5
Item
1
Protocol
Description
Select communication protocol
< List >
MEWTOCOL, MODBUS RTU (initial: MEWTOCOL)
2
3
4
5
Device number
Set device number.
Transmission speed
< Range >
MEWTOCOL:1 to 99
MODBUS RTU:1 to 247
Select transmission speed.
Transmission format
< List >
2400, 4800, 9600, 19200, 38400, 57600, 115200bps
(initial:19200)
Select transmission format.
Response time
< List >
Parity: none, odd, even (initial: odd)
Stop bit:1bit, 2bit (initial:1bit)
Set response time.
< Range >
1 to 99ms (initial:5)
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KW2M Eco-POWER METER
4.5.11 System setup
[System setup]
1
6
2
3
7
4
8
5
1
2
3
4
5
Item
Current time *1
Setting File
System Web Password
Setting Customer Web *1
Monitor Web/Customer Web
Password*1
Description
Set year, month, day, time and time-zone to Eco-POWER
METER.
Click [Change time] to write the settings.
Even if you click [Write→KW2M], current time is not set.
Set time : January 1st, 2015 00:00:00
to December 31st, 2099 23:59:59
Time zone : UTC-12:00 to UTC+14:00
(initial:UTC+9:00)
It saves setup conditions of Eco-POWER METER to your PC
and it writes setup conditions, which are saved in PC, to
Eco-POWER METER.
Export: Save setup conditions of Eco-POWER METER to PC.
Import: Read out setup conditions saved in PC.
Browse: Select setup file which are saved in PC.
Set password to access Web page.
Check the box to upload and download web contents that is
created by Control Web Creator.
When you check the box, you can upload and download.
6
Yes, No (initial: Yes)
Set password to access Monitor Web and Customer Web.
User Name : half-width alphanumeric (64-letter)(initial: user)
Password : half-width alphanumeric (16-letter)(initial: user)
77
KW2M Eco-POWER METER
6
7
8
SNTP setting *1
Backlight auto-off
Screen refresh interval
Set items to adjust time by SNTP.
Click [Sync now] to synchronize by SNTP server.
Port number : 123, 1024 to 65535(initial:123)
Server : 0.0.0.0 to 255.255.255.255 or
half-width alphanumeric (32-letter)
Access Time : 00:00:00 to 23:59:59(initial:00:00:00)
Retry interval : 0 to 60[min](initial:10)
Retry : 0 to 10[times](initial:3)
Display backlight turns off automatically when there is no key
operation for a long time.
After it passes the setting time, backlight will turn off.
< Range >
0 to 99min (initial:5)
Select refresh interval for measuring window.
It updates the display of measured values every setting time.
< List >
0.5, 1.0, 2.0, 3.0s (initial:1.0)
*1 only KW2M-X
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KW2M Eco-POWER METER
[Reset Data]
1
2
3
Image of KW2M-X
1
Item
Select unit and CH
Description
Select unit and CH to reset.
2
Select item
Select data item to reset.
After selecting item, click ‘Reset’ to reset.
3
Delete log(CSV file)*1
Click to delete log files.
*1 only KW2M-X
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KW2M Eco-POWER METER
Chapter 5 Various Functions
5.1 Power Quality Measurement and Logging Function
KW2M Eco-POWER METER can measure harmonics and THD for power quality measurement;
therefore it is helpful to improve the power quality.
[Max. demand]
Maximum value of measured demand value (active, reactive, apparent, active (export), reactive (export),
current)) are considered to the max. demand value. And it records the max. demand value.
5.2 Pulse Output Function
You can use 2-type pulse output, OUT1 and OUT2.
Refer to 4.5.9 Settings for pulse output.
[OUT1][OUT2] are blinking when it output pulse.
You can use 4-type pulse output.
Refer to 4.5.9 Settings for pulse output.
[OUT1][OUT2][OUT3][OUT4] are blinking when it output pulse on the expansion unit display.
1 - 1
C NT
1
2
OU T
OU T
.
.
OU T
OU T
5.2.1 Output depends on integral electric power
Set the unit for pulse output of integral power value and pulse output turns on every time when integral
electric power reaches the unit. (Pulse width: about 100ms)
It judges at the same time of sampling cycle.
5.2.2 Stand-by alarm
When it detects stand-by power (current) of the measured load, pulse output turns on in order to notice.
Set threshold (current) (C) and stand-by time (T) to judge stand-by power.
When the measured load is satisfied the setting conditions, pulse putout turns on in order to notice.
When it exceeds the setting threshold, it turns off and reset it.
(Working flow chart)
(kW)
Electric
power
Normal working
0
output turns ON
T
Stand-by mode
threshold
(C)
(min)
Time
5.2.3 Under voltage alarm
When it falls below the setting voltage, pulse output turns on in order to notice.
When it exceeds, the output turns off.
5.2.4 Over voltage alarm
When it exceeds the setting voltage, pulse output turns on in order to notice.
When it falls below, the output turns off.
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KW2M Eco-POWER METER
5.2.5 Power interruption alarm
When it detects the voltage under 5% of rated voltage for 5ms or more, pulse output turns on in order to
notice.
5.2.6 Under current alarm
When it falls below the setting current, pulse output turns on in order to notice.
When it exceeds, the output turns off.
5.2.7 Current alarm
When it exceeds the setting current, pulse output turns on in order to notice.
When it falls below, the output turns off.
5.2.8 Power alarm
When it exceeds the setting instantaneous electric power (active, reactive, apparent, active (export),
reactive (export)), pulse output turns on in order to notice.
When it falls below, the output turns off.
5.2.9 Other alarms
Output turns on or off according to each alarm setting.
PF alarm, over frequency alarm, under frequency alarm, voltage harmonics alarm,
current harmonics alarm、voltage THD alarm, current THD alarm, voltage unbalancing alarm,
current unbalancing alarm, power demand alarm, current demand alarm, Digital conversion value
upper limit alarm, Digital conversion value lower limit alarm, Temperature upper limit alarm,
Temperature lower limit alarm, Leak alarm
5.2.10 Output depends on count value
Set the preset value and pulse output turns on the time when count value reaches the preset value.
Refer to the next in detail.
5.2.11 Time Control (only KW2M-X)
Output turns on or off according to the setting time for each day.
5.2.12 Level output
It runs on or off the output by writing 0 (OFF) or 1 (ON) to the designated data register (OUT1:
DT50294, OUT2: DT50295) via communication by external control.
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KW2M Eco-POWER METER
5.3 Counter Function
●Operation mode
Maintain output hold count HOLD
[Output]
[Counting]
[Addition]
0
1
2
OFF
3
ON
possible
n-2
n-1
・・・
n
n+1
n+2
n+3
n: Preset value
(1) Output control is maintained after count-up completion and until reset. However counting is
possible despite of count-up completion.
(2) It reverts“0” after counting up full scale, but output control is maintained. However output is OFF
if count value or preset value is changed.
●Change the Preset Value
It is possible to change the preset value even during counting. However note the following points.
◇When the pre-scale value is “1.000”. (PSCL=1.000)
(1) If the preset value is changed to the value less than the count value, counting will continue until
it reaches full scale, returns to “0” and then reaches the new preset value.
(2) If the preset value is changed to “0”, it will not count up at start with “0”. It counts up when the
counting value comes to “0” again (after reach to full scale). However output is OFF if count
value or preset value is changed.
(3) When the count value is fixed, output is changed according to the changing of preset value as
below.
①If the preset value is changed to the value less than the count value or same as count value,
output is ON.
(Count value ≧Preset value)
②If the preset value is changed to the value more than the count value, output is OFF.
(Count value ＜ Preset value)
◇When the pre-scale is not “1.000”. (PSCL≠1.000)
Even if the preset value is changed after counting to full scale, output is not changed.
5.4 Clock Correction Function
(only KW2M-X)
This is the function that it corrects the clock of Eco-POWER METER by selecting ‘Clock sync.’ for pulse
input type. However, the setting time is different from Eco-POWER METER time one-hour or more, it
doesn’t synchronize.
Ex.) When you set [00:00] for synchronize time
Input pulse 1 makes clock April 2, 2015 00:00:00 when it was April 1, 2015 23:59:00.
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KW2M Eco-POWER METER
5.5 Hour Meter Function
This is the function that it measures several types of hours.
・When load current is over the setting current for time measurement (ON threshold), it measures as
ON-time.
For KW2M-A, when load current is in the range of 0.001A to ON threshold, it measures as
Standby-time. When load current is 0.000A, it measures OFF-time.
For KW2M-X, when load current is in the range of stand-by threshold to ON threshold, it measures
as Standby-time. When load current is under stand-by threshold, it measures as OFF-time.
・It measures as maintenance-time as the below conditions.
Write ‘1’ to DT5(N)(C)28
*1
Input ON with the input type set to ‘Hour meter maintenance’
*2
*1 (N) and (C) are the value according to the unit and CH as below.
(N) unit number main unit: 0, expansion unit1: 1, expansion unit2: 2, expansion unit3: 3
(C) CH number CH1: 0, CH2: 5
*2 only KW2M-X
Load current
ON threshold
Stand-by threshold
Time
Measured as
OFF-h
Measured as
Standby-h
Measured as
ON-h
Measured as
Maintenance-h
Write ‘1’ to DT5(N)(C)29
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KW2M Eco-POWER METER
5.6 Demand Function
You can select demand calculation methods for KW2M Eco-POWER METER from the bellows.
・According to IEC61557-12
1. Sliding block interval demand
2. Fixed block interval demand
3. Current demand
Please use this simple demand function as your standard. The value is not guaranteed.
Caution
Definition of Demand
It is demand measurement in order to use by yourself as your standard.
5.6.1 Block interval demand
It calculates demand by setting interval and displays.
You can select sliding block or fixed block for interval.
It output demand alarm according to the setting conditions.
Sliding block
Set power interval by 1 to 60(min.) (every 1-min.). It calculates demand during latest finished interval
and displays.
One interval is started every time that set for ‘power demand interval 2’.
Ex.) Power demand interval: 15 min. Power demand interval 2: 1 min.
15 min. interval
Calculate demand during
4 to 19 min
0
1
2
3
4
・・・
・・・
15
16
17
18
19
[min.]
Fixed block
Set power interval by 1 to 60 (min.) (every 1-min.) It calculates demand during latest finished interval
and displays. After one interval finishes, the next interval starts.
Calculate demand
during 0 to 15 min.
15-min. interval
0
Calculate demand
during 15 to 30 min.
15-min. interval
15
30
84
[min.]
KW2M Eco-POWER METER
5.6.2 Current demand
Current demand calculates the demand based on a thermal demand meter.
Current demand =
(Average of current – last current demand value) × 90%(fixed) + Last current demand value
In case of that a stable current flows for interval time, 90% of current value is displayed.
(%)
90
time
interval
5.6.3 Max. demand value
Maximum value of measured demand value (active, reactive, apparent, active (export), reactive (export),
current)) are considered to the max. demand value. And it records the max. demand value.
5.6.4 Demand alarm output
・It output with pulse output terminal. (open collector)
・It output only when [alarm] is set for unit for pulse output.
・It doesn’t output alarm if power demand alarm threshold is set to ‘0.000’kW.
5.6.5 Working at power failure and at recovery
・It stops the demand measurement.
・It records monthly max. demand log, max. demand value in the internal memory.
・It stops the demand measuring until next span starts. When the next span starts, it will start
demand measuring.
5.6.6 Totaling the demand
・It totals the demand values that are measured with each channel and displays.
You can read out with DT register.
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KW2M Eco-POWER METER
5.7 Logging Data Writing Function (only KW2M-X)
This is the function that it writes the measurement data to the internal memory.
You can read out the log files by PC from Eco-POWER METER via FTP communication.
There are 4 kinds of file to write.
・5-min. instantaneous value (Save cycle: 5 minutes fixed)
・15-min. instantaneous value (Save cycle: 15 minutes fixed)
・Demand (Save cycle: 1 minute fixed)
・Power quality (When event is occurred.)
5.7.1 File creating
It writes the measurement data to temporary file at the below designated time.
5-min. instantaneous value
Every hour xx:05
15-min. instantaneous value Every hour xx:15
Demand
Every hour xx:25
Power quality
Every hour xx:35
* When the capacity of the internal memory (temporary) reaches upper limit except the times, it will
write too.
It renames the temporary files at the below designated time.
5-min. instantaneous value
Every day 00:05
15-min. instantaneous value Every month 1st 00:15
Demand
Every day 00:25
Power quality
When logging 1000-record
It deletes log files after the below designated time has passed.
5-min. instantaneous value
60 days after creating file
15-min. instantaneous value 24 months after creating file
Demand
60 days after creating file
Power quality
It reaches 100 files
Writing indication is appeared during writing.
Do not turn off the main unit during the indication is appeared, it may break the log files.
Writing indication
M- 1
P
1
2
3
Σ
1
1
1
1
2
2
2
2
3
3
3
3
.
.
.
.
4
4
4
4
5
5
5
5
k
k
k
k
W
W
W
W
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KW2M Eco-POWER METER
5.7.2 Format for written files
Log files written in the internal memory is saved with the below format as csv file.
4
1
3
2
1 Device
information
2 Logging trigger
3 Record number
4 Logging data
(row 1)
(row 2)
(row 3)
(row 4)
(row 5)
Logging data number
KW2M-X : Model name
COM1[Unit No.1] : Device number (based on the unit setting)
DT278 : Target address (main/expansion unit)
MOMENT : Shows ‘instantaneous value’
US32 -> FLT : Unsigned integer 32 bit
S32 -> FLT : Signed integer 32 bit
(row 6)
US16 -> FLT : Unsigned integer 16 bit
S16 -> FLT : Signed integer 16 bit
(row 7) Unit (based on the target address)
Timing to log data: 5 minutes fixed
(00,05,10,15,20,25,30,35,40,45,50,55 of each hour)
Record number for 1 file 288 records fixed
Timing of creating file
5-minute every hour
Timing of confirming file
00:05 every day
Record ‘－’ for items not measured
Logging data of the same timing: 14 data (fixed)
From column C to P
R-current, S-current, T-current, N-current, Average of current
R-voltage (L1-N), S-voltage (L2-N), T-voltage (L3-N),
Average of phase-voltage,
RS-voltage (L1-L2), ST-voltage (L2-L3), TR-voltage (L3-L1)
Average of line-voltage
Pulse count value
Logging data of the same timing: 5 data (fixed)
From column C to G
Digital conversion value1, Digital conversion value2,
Digital conversion value3
Temperature1, Temperature2
Logging data of the same timing: 2 data (fixed)
From column C to D
Pulse count 1, Pulse count 2
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KW2M Eco-POWER METER
1
4
3
2
1 Device
information
(row 1)
(row 2)
(row 3)
(row 4)
(row 5)
(row 6)
(row 7)
Logging data number
KW2M-X : Model name
COM1[Unit No.1] : Device number (based on the unit setting)
DT100 : Target address (main/expansion unit)
MOMENT : Shows ‘instantaneous value’
US64 -> FLT : Unsigned integer 64 bit
S64 -> FLT : Signed integer 64 bit
US32 -> FLT : Unsigned integer 32 bit
S32 -> FLT : Signed integer 32 bit
US16 -> FLT : Unsigned integer 16 bit
S16 -> FLT : Signed integer 16 bit
Unit (based on the target address)
2 Logging trigger
Timing to log data: 15 minutes fixed (00,15,30,45 of each hour)
3 Record number
Record number for 1 file 2976 records fixed
Timing of creating file
15-minute every hour
Timing of confirming file 1st 00:15 every month
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KW2M Eco-POWER METER
4 Logging data
Record ‘－’ for items not measured
Logging data of the same timing: 67 data (fixed)
From column C to BT
Integral active power(1), (2), (3), Total integral active power,
Integral reactive power(1), (2), (3), Total integral reactive power,
Integral apparent power(1), (2), (3), Total integral apparent power,
Export active power(1), (2), (3), Total export active power,
Export reactive power(1), (2), (3), Total export reactive power,
Instantaneous active power(1), (2), (3), Total instantaneous active power,
Instantaneous reactive power(1), (2), (3), Total instantaneous reactive power,
Instantaneous apparent power(1), (2), (3), Total instantaneous apparent power,
R-current, S-current, T-current, N-current, Average of current,
R-voltage (L1-N), S-voltage (L2-N), T-voltage (L3-N), Average of phase-voltage,
RS-voltage (L1-L2), ST-voltage (L2-L3), TR-voltage (L3-L1), Average of
line-voltage, Power factor(1), (2), (3), Average of power factor,
Frequency(1), (2), (3), Average of frequency, Current THD(1), (2), (3),
Average of current THD, Phase-voltage THD(1), (2), (3),
Average of phase-voltage THD, Line-voltage THD(1), (2), (3),
Average of line-voltage THD, ON-time, OFF-time, Stand-by time,
Maintenance-time, Pulse count value
Logging data of the same timing: 5 data (fixed)
From column C to G
Digital conversion value1, Digital conversion value2, Digital
conversion value3
Temperature1, Temperature2
Logging data of the same timing: 2 data (fixed)
From column C to D
Pulse count 1, Pulse count 2
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KW2M Eco-POWER METER
1
4
2
3
1 Device
information
(row 1)
(row 2)
(row 3)
(row 4)
(row 5)
(row 6)
(row 7)
Logging data number
KW2M-X : Model name
COM1[Unit No.1] : Device number (based on the unit setting)
DT100 : Target address (main/expansion unit)
MOMENT : Shows ‘instantaneous value’
US64 -> FLT : Unsigned integer 64 bit
S64 -> FLT : Signed integer 64 bit
US32 -> FLT : Unsigned integer 32 bit
S32 -> FLT : Signed integer 32 bit
US16 -> FLT : Unsigned integer 16 bit
S16 -> FLT : Signed integer 16 bit
Unit (based on the target address)
2 Logging trigger
Timing to log data: 15 minutes fixed (00,15,30,45 of each hour)
3 Record number
Record number for 1 file 2976 records fixed
Timing of creating file
15-minute every hour
Timing of confirming file 1st 00:15 every month
90
KW2M Eco-POWER METER
4 Logging data
Record ‘－’ for items not measured
Select up to 8 items
Integral active power(1), (2), (3), Total integral active power,
Integral reactive power(1), (2), (3), Total integral reactive power,
Integral apparent power(1), (2), (3), Total integral apparent power,
Export active power(1), (2), (3), Total export active power,
Export reactive power(1), (2), (3), Total export reactive power,
Instantaneous active power(1), (2), (3), Total instantaneous active power,
Instantaneous reactive power(1), (2), (3), Total instantaneous reactive power,
Instantaneous apparent power(1), (2), (3), Total instantaneous apparent power,
R-current, S-current, T-current, N-current, Average of current,
R-voltage (L1-N), S-voltage (L2-N), T-voltage (L3-N), Average of phase-voltage,
RS-voltage (L1-L2), ST-voltage (L2-L3), TR-voltage (L3-L1), Average of
line-voltage, Power factor(1), (2), (3), Average of power factor,
Frequency(1), (2), (3), Average of frequency, Current THD(1), (2), (3),
Average of current THD, Phase-voltage THD(1), (2), (3),
Average of phase-voltage THD, Line-voltage THD(1), (2), (3),
Average of line-voltage THD, ON-time, OFF-time, Stand-by time,
Maintenance-time, Pulse count value
Digital conversion value1, Digital conversion value2,
Digital conversion value3, Temperature1, Temperature2
Pulse count 1, Pulse count 2,
Leakage current 1, Leakage current 2, Leakage current 3
91
KW2M Eco-POWER METER
(Main unit, Expansion unit (Power measurement))
1
4
2
3
1 Device
information
2 Logging trigger
3 Record number
4 Logging data
(row 1)
(row 2)
(row 3)
(row 4)
(row 5)
Logging data number
KW2M-X : Model name
COM1[Unit No.1] : Device number (based on the unit setting)
DT305 : Target address (main/expansion unit)
DEMAND : Shows ‘demand value’
US64 -> FLT : Unsigned integer 64 bit
S64 -> FLT : Signed integer 64 bit
US32 -> FLT : Unsigned integer 32 bit
(row 6)
S32 -> FLT : Signed integer 32 bit
US16 -> FLT : Unsigned integer 16 bit
S16 -> FLT : Signed integer 16 bit
(row 7) Unit (based on the target address)
Timing to log data: 1 minutes fixed (00 of each minute)
Record number for 1 file 1440 records fixed
Timing of creating file
25-minute every hour
Timing of confirming file
00:25 every day
Record ‘－’ for items not measured
Logging data of the same timing: 9 data (fixed)
From column C to K
Present demand (active power, reactive power, apparent power,
active power(export), reactive power(export))
Pulse conversion value for integral power,
Present current demand (1), (2), (3)
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KW2M Eco-POWER METER
(Main unit, Expansion unit (Power measurement))
4
1
3
2
1 Device
information
2 Logging trigger
(row1)
3 Record number
Record number for 1 file 1000 records fixed
Timing of creating file
35-minute every hour
Timing of confirming file
When logging 1000-record
Record ‘－’ for items not measured
(row C) Status of event
(row D) Event type
・Over Voltage
・Under Voltage
・Over Current
・Under Current
・Power interruption
(row E) Phase that the event has occurred
(row F) Time that the event has occurred
4 Logging data
Measured data item (fixed)
Timing to log data: at the time when an event is occurred
93
KW2M Eco-POWER METER
5.7.3 File name and saved folder
Files are saved in the internal memory with the below constructions.
[Folder]
LOG
moment5_u0_1
moment5_u1_1
moment5_u0_1(160101_001500_TRG).csv
moment5_u0_1(160102_001500_TRG).csv
moment5_u1_1(160101_001500_TRG).csv
[Folder name]
LOG -> fixed
moment5_u0_1
Circuit number (1: CH1, 2: CH2)
Unit number (0: main unit, 1 to 3: expansion)
[File name]
moment5_u0_1(160101_001500_TRG).csv
Condition of saved file
hour/minute/second (00:15:00)
year/month/day (January 1st, 2016)
circuit number (1: CH1, 2: CH2)
unit number (0: main unit, 1 to 3: expansion)
year/month/day, hour/minute/second in file name is the date of the beginning record.
[Folder]
LOG
moment15_u0_1
moment15_u1_1
moment15_u0_1(160101_001500_TRG).csv
moment15_u0_1(160102_001500_TRG).csv
moment15_u1_1(160101_001500_TRG).csv
[Folder name]
LOG -> fixed
moment15_u0_1
Circuit number (1: CH1, 2: CH2)
Unit number (0: main unit, 1 to 3: expansion)
[File name]
moment15_u0_1(160101_001500_TRG).csv
Condition of saved file
hour/minute/second (00:15:00)
year/month/day (January 1st, 2016)
circuit number (1: CH1, 2: CH2)
unit number (0: main unit, 1 to 3: expansion)
year/month/day, hour/minute/second in file name is the date of the beginning record.
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KW2M Eco-POWER METER
[Folder]
LOG
custom
custom(160101_001500_TRG).csv
custom(160102_001500_TRG).csv
[Folder name]
LOG -> fixed
custom -> fixed
[File name]
custom(160101_001500_TRG).csv
Condition of saved file
hour/minute/second (00:15:00)
year/month/day (January 1st, 2016)
year/month/day, hour/minute/second in file name is the date of the beginning record.
[Folder]
LOG
demand_u0_1
demand_u1_1
demand_u0_1(160101_001500_TRG).csv
demand_u0_1(160102_001500_TRG).csv
demand_u1_1(160101_001500_TRG).csv
[Folder name]
LOG -> fixed
demand_u0_1
Circuit number (1: CH1, 2: CH2)
Unit number (0: main unit, 1 to 3: expansion)
[File name]
demand_u0_1(160101_001500_TRG).csv
Condition of saved file
hour/minute/second (00:15:00)
year/month/day (January 1st, 2016)
circuit number (1: CH1, 2: CH2)
unit number (0: main unit, 1 to 3: expansion)
year/month/day, hour/minute/second in file name is the date of the beginning record.
95
KW2M Eco-POWER METER
[Folder]
LOG
quality_u0_1
quality _u1_1
quality _u0_1(160101_001500_TRG).csv
quality _u0_1(160102_001500_TRG).csv
quality _u1_1(160101_001500_TRG).csv
[Folder name]
LOG -> fixed
quality_u0_1
Circuit number (1: CH1, 2: CH2)
Unit number (0: main unit, 1 to 3: expansion)
[File name]
quality_u0_1(160101_001500_SET).csv
Condition of saved file
hour/minute/second (00:15:00)
year/month/day (January 1st, 2016)
circuit number (1: CH1, 2: CH2)
unit number (0: main unit, 1 to 3: expansion)
year/month/day, hour/minute/second in file name is the date of the beginning record.
Condition of saved file
‘File write trigger’ occurs.
Record number reaches upper limit
Recorded letter
TRG
SET
96
KW2M Eco-POWER METER
Chapter 6 Display of Each Value
6.1 Working of Monitor Display
【Shift the display mode】
Press during pressing , it shifts measuring mode, logging mode and demand
mode.
Press to shift the setting mode.
initial
monitoring
mode
+
Log mode*1
Setting mode
+
Demand mode*1
+
*1 only main unit and expansion unit (power measurement), set CH2 to power measurement
Press during pressing , it shifts display channel and unit.
Initial
Main unit
CH1
Expansion
unit 1
CH1
Expansion
unit 2
CH1
Expansion
unit 3
CH1
Main unit
CH2
Expansion
unit 1
CH2*2
Expansion
unit 2
CH2*2
Expansion
unit3
CH2*2
*2 only expansion unit (power measurement)
*3 only when it set to available the total demand function
97
Total demand
*3
KW2M Eco-POWER METER
6.2 Working of Monitor Display (Main unit, Expansion unit (Power measurement))
6.2.1 Single-phase two-wire system
Arrow mark shows to press each key.
Active
Instantaneous power
Reactive
Apparent
Active
Total integral power
Reactive
Apparent
Change time-zone *1
Total integral export power
Active
Reactive
Change time-zone *1
Current
Voltage
Power factor
Frequency
Current THD
Voltage THD
2nd
Current n-order harmonics
3rd
・・・・・
31st
2nd
Voltage n-order harmonics
3rd
・・・・・
31st
Pulse input value
To next page
98
KW2M Eco-POWER METER
From the previous page
Conversion value P
(integral power)
Conversion value –P
(integral export power)
Hour meter
ON-h
Standby-h
OFF-h
Clock *1
Return to instantaneous power
*1 only KW2M-X
99
Maintenance-h
KW2M Eco-POWER METER
6.2.2 Single-phase three-wire system
Arrow mark shows to press each key.
Active
Instantaneous power
Reactive
Apparent
Active
Total integral power
Reactive
Apparent
Change time-zone *1
Total integral export power
Active
Reactive
Change time-zone *1
Current
Voltage
Phase-voltage
Line-voltage
Power factor
Frequency
Current unbalancing
Voltage unbalancing
Current THD
Voltage THD
Phase-voltage THD
2nd order
Line-voltage THD
Current n-order Harmonics
3rd order
・・・・・
31st order
To next page
100
KW2M Eco-POWER METER
From the previous page
2nd order
Phase-voltage n-order Harmonics
3rd order
・・・・・
31st order
2nd order
Line-voltage n-order Harmonics
3rd order
・・・・・
31st order
Pulse input value
Conversion value P
(integral power)
Conversion value -P
(integral export power)
Hour meter
ON-h
Standby-h
OFF-h
Clock *1
Return to instantaneous power
*1 only KW2M-X
101
Maintenance-h
KW2M Eco-POWER METER
6.2.3 Three-phase three-wire system
Arrow mark shows to press each key.
Active
Instantaneous power
Reactive
Apparent
Active
Total integral power
Reactive
Apparent
Change time-zone *1
Total integral export power
Active
Reactive
Change time-zone *1
Current
Line-voltage
Power factor
Frequency
Current unbalancing
Voltage unbalancing
Current THD
Voltage THD
2nd order
Current n-order Harmonics
3rd order
・・・・・
31st order
To next page
102
KW2M Eco-POWER METER
From the previous page
2nd
order
Line-voltage n-order Harmonics
3rd order
・・・・・
31st order
Pulse input value
Conversion value P (integral power)
Conversion value -P
(integral export power)
Hour meter
ON-h
Standby-h
OFF-h
Clock *1
Return to instantaneous power
*1 only KW2M-X
103
Maintenance-h
KW2M Eco-POWER METER
6.2.4 Three-phase four-wire system
Arrow mark shows to press each key.
Active
Instantaneous power
Reactive
Apparent
Active
Total integral power
Reactive
Apparent
Change time-zone *1
Total integral export power
Active
Reactive
Change time-zone *1
Current
Current
N-phase current
Voltage
Phase-voltage
Line-voltage
Power factor
Frequency
Current unbalancing
Voltage unbalancing
Current THD
Voltage THD
To next page
104
KW2M Eco-POWER METER
2nd order
From the previous page
Current n-order Harmonics
3rd order
31st order
・・・・・
2nd order
Phase-voltage n-order Harmonics
3rd order
・・・・・
31st order
Line-voltage n-order Harmonics
3rd order
・・・・・
31st order
2
nd
order
Pulse input value
Conversion value P (integral power)
Conversion value -P
(integral export power)
Hour meter
ON-h
Standby-h
OFF-h
Clock *1
Return to instantaneous power
*1 only KW2M-X
105
Maintenance-h
KW2M Eco-POWER METER
6.2.5 Instantaneous power
・The present instantaneous power of all phases or all circuits is displayed.
・Press to change active, reactive and apparent.
Active
- 1
P
1
2
3
Σ
1 2 3 . 4 5 k
k
k
k
SHIFT
W
1 - 2
＞
M
Reactive
W
Q
W
W
1
2
3
Σ
k
k
k
k
v
v
v
v
a
a
a
a
r
r
r
r
Apparent
SHIFT
＞
2 - 2
S
1
2
3
Σ
k
k
k
k
V
V
V
V
A
A
A
A
・Eco-POWER METER displays the power as below.
Display
1P2W
1P3W
1
1st
2
circuit
R-phase
R-phase
2nd circuit
---
S-phase
3
3rd circuit
T-phase
T-phase
∑
Total (1+2+3)
Total (R+T)
Total (R+S+T)
Active
Reactive
SHIFT
M
＞
- 1
P
- 1
Q
x . x x x k
x . x x x k v a r
W
Apparent
SHIFT
＞
M
3P4W
M
- 1
S
x . x x x k VA
106
KW2M Eco-POWER METER
6.2.6 Total integral power
・The present total integral power is displayed.
・Press to change active, reactive and apparent.
・Press to change the display with each time-zone. *1
After changing, press to change displayed time-zone.
time-zone1(T1) -> time-zone2(T2) -> time-zone3(T3) -> time-zone4(T4) -> All time-zone
*Time-zone without setting for any time program is not displayed.
All time-zone
Active
M
- 1
P
Reactive
1
2
3
k
k
k
k
Σ
W
W
W
W
h
h
h
h
M
- 1
Q
Apparent
1
2
3
k
k
k
M
Σ
v
v
v
v
a
a
a
a
r
r
r
r
h
h
h
h
1
2
3
k
k
k
k
Σ
V
V
V
V
A
A
A
A
h
h
h
h
＞
SET
- 1
S
SHIFT
＞
SHIFT
M
Time-zone1
M
- 1
P
1
2
3
T 1
Σ
k
k
k
k
W
W
W
W
h
h
h
h
M
- 1
Q
1
2
3
T 1
Σ
k
k
k
M
a
a
a
a
r
r
r
r
h
h
h
h
M
- 1
S
1
2
3
T 1
Σ
k
k
k
k
V
V
V
V
A
A
A
A
h
h
h
h
＞
SHIFT
＞
SHIFT
SET
v
v
v
v
time-zone2, time-zone3, time-zone4 and all time-zone are changed in turn.
*It doesn’t light [∑] with 3P3W system.
・Total integral power is measured and displayed from 0.000 (kWh/kvarh/kVAh) to
9999.9 (PWh/Pvar/PVA).
・The decimal point is changed automatically.
0.000kWh
99.999kWh
100.00kWh
9999.9PWh
….
999.99kWh
1000.0kWh
10.000MWh
9999.9kWh
(After reach the full scale, 9999.9PWh, the value reverts to 0.000 but continues to measure.)
*1 only KW2M-X
107
KW2M Eco-POWER METER
6.2.7 Total integral export power
・The present total export power is displayed.
・Press to change active, reactive and apparent.
・Press to change the display with each time-zone. *1
After changing, press to change displayed time-zone.
time-zone1(T1) -> time-zone2(T2) -> time-zone3(T3) -> time-zone4(T4) -> All time-zone
*Time-zone without setting for any time program is not displayed.
All time-zone
Active
Reactive
1
2
3
Σ
k
k
k
k
W
k
k
k
k
W
W
W
W
h
h
h
h
SHIFT
＞
- 1
- P
M
- 1
- Q
M
1
2
3
Σ
k
k
k
M
v
v
v
v
a
a
a
a
r
r
r
r
h
h
h
h
k
k
k
M
v
v
v
v
a
a
a
a
r
r
r
r
h
h
h
h
SET
Time-zone1
1
2
3
T 1
Σ
W
W
W
h
h
h
h
- 1
- Q
1
2
3
T 1
Σ
M
SHIFT
＞
- 1
- P
M
SET
time-zone2, time-zone3, time-zone4 and all time-zone are changed in turn.
*It doesn’t light [∑] with 3P3W system.
・Total integral power is measured and displayed from 0.000 (kWh/kvarh/kVAh) to
9999.9 (PWh/Pvar/PVA).
・The decimal point is changed automatically.
0.000kWh
99.999kWh
9999.9PWh
100.00kWh
….
999.99kWh
10.000MWh
1000.0kWh
9999.9kWh
(After reach the full scale, 9999.9PWh, the value reverts to 0.000 but continues to measure.)
*1 only KW2M-X
108
KW2M Eco-POWER METER
6.2.8 Current
・The present current value is displayed. (N-phase current is displayed for 3P4W.)
- 1
I
1
2
3
A
A
k A
k A
A
SHIFT
1 - 2
I
＞
M
1
2
3
N
A
A
A
A
・It measures from 0.1% of CT secondary current.
・When input current exceeds 200% or the display range, it displays ‘- - - - -’.
Check and confirm the measurement environment.
・Current measuring points Eco-POWER METER measures the current as below.
3P3W
Display
1P2W
1P3W
3P4W
st
1
1 circuit R-current
R-current
R-current
2
2nd circuit R-current
N-current
S-current
rd
3
3 circuit R-current
T-current
T-current
A
Average
Average of R and T
Average
N
N-current *only 3P4W
－
－
6.2.9 Voltage
・The present voltage is displayed.
・Press to change phase voltage and line voltage.
(Line voltage is not displayed for 1P2W system. Phase voltage is not displayed for 3P3W system.
Phase voltage
Line voltage
- 1
U
1
2
3
A
V
V
V
V
SHIFT
M
＞
M
- 1
U
1 2
2 3
3 1
A
V
V
V
V
・When input voltage is under 3V (when VT ratio is 1.), it displays ‘0.00’ and doesn’t measure.
・When input voltage exceeds 828V or the display range, it displays ‘- - - - -’.
Check and confirm the measurement environment.
・Voltage measuring points Eco-POWER METER measures the voltage as below.
Display
1P2W
1P3W
3P3W
3P4W
R-voltage (L1-N)
1
R-voltage (L1-N)
R-voltage (L1-N)
or 1st circuit R-voltage
None or
2
None
S-voltage (L2-N)
2nd circuit R-voltage
No display
None or
3
T-voltage (L3-N)
T-voltage (L3-N)
3rd circuit R-voltage
A
Average
Average of R and T
Average
12
R-voltage (L1-N)
RS-voltage (L1-L2)
RS-voltage (L1-L2)
T-voltage (L3-N)
ST-voltage (L2-L3)
ST-voltage (L2-L3)
31
TR-voltage (L3-L1)
TR-voltage (L3-L1)
TR-voltage (L3-L1)
A
Average of R and T
Average
Average
23
No display
109
KW2M Eco-POWER METER
6.2.10 Power factor
・The present power factor of the load is displayed.
- 1
P F
M
1
2
3
A
- 1
P F
M
1 2 3
*Power factor operation is a method assuming balanced load. The error might be big when it
measures unbalanced load.
6.2.11 Frequency
・The present frequency is displayed.
M
- 1
F
1
2
3
A
H
H
H
H
z
z
z
z
M
- 1
F
H z
6.2.12 Current unbalance
・The present current unbalance is displayed. (No display for 1P2W.)
M
- 1
I
1 0 0 . 0 0
%
6.2.13 Voltage unbalancing
・The present voltage unbalancing is displayed. (No display for 1P2W.)
M
- 1
U
1 0 0 . 0 0
%
110
KW2M Eco-POWER METER
6.2.14 Current THD
・The present THD for current is displayed.
- 1
T HD i
M
1
2
3
A
%
%
%
%
6.2.15 Voltage THD
・The present THD for voltage displayed.
- 1
T HD u
M
1
2
3
A
- 1
T HD u
M
%
%
%
%
1 2
2 3
3 1
A
6.2.16 Current n-order harmonics
・The present current n-order harmonics is displayed.
・Press to change display.
2nd order, 3rd order, 4th order ・・・・・ up to 31st order
M
- 1
H - I 2
1
2
3
A
%
%
%
%
6.2.17 Voltage n-order harmonics
・The present voltage n-order harmonics is displayed.
・Press to change display.
2nd order, 3rd order, 4th order ・・・・・ up to 31st order
M
- 1
H - U 2
1
2
3
A
%
%
%
%
111
%
%
%
%
KW2M Eco-POWER METER
6.2.18 Pulse input value
・The present pulse input value is displayed.
・Pulse input status (ON or OFF) is confirmed via communication. (MEWTOCOL and MODBUS)
Pulse input
M
- 1
C N T
1 2 3 4 5 6 7 8 9 0 1
*Turn on the unit during IN1 is shorted, first 1-pulse is not counted. After that, when pulse is input
pulse it count the pulse.
6.2.19 Conversion value for integral active power
・The conversion value for the present integral active power (P) is displayed.
(Only total conversion value is displayed for 3P3W system.)
・Press to change total, phase 1 (1st circuit), phase 2 (2nd circuit) and phase 3 (3rd circuit).
Total
M
- 1
C H G
1
2
3
Σ
1 2 3 4 5 6 7 8 9 0 1
1
2
3
Σ
1 2 3 4 5 6 7 8 9 0 1
Total
M
- 1
C H G
*The conversion value exceeds ‘99999999’,
[－－－－－－－－] is displayed.
Check and confirm the measurement environment.
6.2.20 Conversion value for integral export power
・The conversion value for the present integral export active power (-P) is displayed.
(Only total conversion value is displayed for 3P3W.)
・Press to change total, phase 1 (1st circuit), phase 2 (2nd circuit) and phase 3 (3rd circuit).
Total
M
- 1
C H G -
1
2
3
Σ
112
KW2M Eco-POWER METER
6.2.21 Hour meter
・ON-time, Standby-time, OFF-time and Maintenance-time of setting phase are displayed.
・Press to change ON-time, Standby-time, OFF-time and Maintenance time.
SHIFT
＞
1 2 3 4 . 5 h
1 2 3 4 . 5 h
SHIFT
- 1
O F F - h
SHIFT
- 1
S t a n d b y - h
M
＞
- 1
O N - h
M
＞
M
M - 1
M a i n t e n a n c e - h
1 2 3 4 . 5 h
1 2 3 4 . 5 h
6.2.22 Clock (only KW2M-X)
・It displays the present time.
- 1
C L O C K
M
Year/month/day
2 0 1 5 / 0 1 / 0 1
0 0 ： 0 0 ： 0 0
time
113
KW2M Eco-POWER METER
6.3 Working of Monitor Display (Expansion unit (Leak measurement))
Leakage current
6.3.1 Leakage current
・The present leakage current is displayed.
1 - 2
L e a k
1
2
3
1 2 3 4 5 . 6 7 8 9 A
1 2 3 4 5 . 6 7 8 9 A
1 2 3 4 5 . 6 7 8 9 A
・After measured leakage current value exceeds the threshold and it passes the delay time, and the
measured value still exceeds the threshold, it will judge it is the leakage current and display alarm.
Press and ‘←’ is displayed. Point CH to reset alarm with ‘←’ and press
It will reset the alarm.
1 - 2
L e a k
! 1
! 2
! 3
←
1 2 3 4 5 . 6 7 8 9 A
1 2 3 4 5 . 6 7 8 9 A
1 2 3 4 5 . 6 7 8 9 A
114
KW2M Eco-POWER METER
6.4 Working of Monitor Display (Expansion unit (Multi analog input))
Arrow mark shows to press each key.
time-zone1(T1) -> time-zone2(T2) -> time-zone3(T3) -> time-zone4(T4)
・Press to change the display with each month.
1-month before -> 2-month before -> 3-month before ->・・・・・(12-month before)
*Time-zone without setting for any time program is not displayed.
*When you change the setting of phase/wire system, max. demand value will be reset.
Power demand
Item indicator
Lighting [D.LOG]
Time-zone
Indicator *1
None: All time-zone
T1:time-zone1
T2: time-zone2
T3: time-zone3
T4: time-zone4
M- 1
P
D . LOG
T1
2 0 1 5 / 0 1 / 0 1
0 0 : 0 0 : 0 0
1 2 3 . 4 5 kW
Recorded date
and time *1
Max demand
Phase
Current demand
Item indicator
Lighting [D.LOG]
Time-zone
Indicator *1
None: All time-zone
T1:time-zone1
T2: time-zone2
T3: time-zone3
T4: time-zone4
M- 1
I
D . LOG
T1
1
2
3
2 0
1
1
1
1
2
2
2
5
3
3
3
/
.
.
.
0
4 5A
4 5A
4 5A
1
Max demand
Recorded year
and month *1
・Press to change items to display.
Display
Item
Active power Peak demand
Reactive power Peak demand
Apparent power Peak demand
Active power (export) Peak demand
Reactive power (export) Peak demand
Current Peak demand
*1 only KW2M-X
118
Indicator
P
Q
S
-P
-Q
I
unit
kW
kvar
kVA
kW
kvar
A
KW2M Eco-POWER METER
6.7 Working of Demand Mode
Each measured value is displayed as below. It differs according to the selected demand type.
Press and
B a s e
U n i t
Web browser
Eco-POWER METER
6) When it completes updating the firmware, the complete window will be appeared and
Eco-POWER METER has restarted automatically.
When it fails updating the firmware, error window will be appeared.
Check and confirm the communication conditions and update again.
7) Click [OK] to exit System Web.
You can use Eco-POWER METER as it is.
128
KW2M Eco-POWER METER
Chapter 10 How to Update the Web Contents
You can update System Web contents with using KW Version Upgrade Tool.
Refer to the manual of KW Version Upgrade Tool regard to use it.
1) Start KW Version Upgrade Tool.exe
C:¥Program Files¥Panasonic-EW SUNX Control¥KW Version Upgrade Tool
When the warning about user account control is displayed, click [Yes].
*Use KW Version Upgrade Tool version 1.60 or more.
2) Select ‘KW2M’ with Type.
3) Click [Communication Settings] with [Setting].
129
KW2M Eco-POWER METER
4) Register destination IP address.
5) Click [Refer] to select contents to update.
6) Click [Update].
130
KW2M Eco-POWER METER
7) Login window will appear and input ‘User name’ and ‘Password’ to log in Web contents.
After that, click [Login].
8) It starts uploading and the indicator will appear.
9) When it completes updating the web contents, the complete window will appear and restart
Eco-POWER METER automatically.
10) After complete the update, the new version is displayed at the display.
131
KW2M Eco-POWER METER
Chapter 11 Specifications
11.1 General Specification (Main unit, Expansion unit)
Supply voltage range
100 to 240V AC
Rated frequency
50/60Hz
Nominal power consumption
Approx. 15VA
(240V AC at 25C)
Inrush current
Allowable momentary
power-off time
30A or less
(240V AC/DC at 25C)
Ambient temperature
Ambient humidity
10ms
Operation
-10 to + 50C
Storage
-25 to + 70C
30 to 85%RH (at 20C) non-condensing
Between the isolated circuits: 2,000V/1min
Breakdown voltage (initial)
Insulation resistance (initial)
Vibration resistance
Shock resistance
Noise immunity
Serge immunity
Display method
Display updated cycle
Power failure memory method
(when power is off)
Sea level altitude
Overvoltage category
Pollution degree
Dimensions H/W/D
Weight
Internal memory
Under 2,000m
III
2
Main unit
Expansion unit
Main unit
85 x 140 x 65 mm
85 x 70 x 65 mm
Expansion unit (Power measurement)
Range
Calendar timer
*1
a) enclosure ⇔all terminals
b) primary insulated circuits ⇔secondary insulated circuits
(Double insulation)
・power supply terminals ⇔other terminals
・voltage input terminals ⇔other terminals
Between the isolated circuits: 100 MΩ or more
10 to 150Hz (7.5 minutes/cycle)
single amplitude:0.075mm (1h on 3 axes)
10 to 55Hz (1 minute/cycle)
single amplitude:0.375mm (1h on 3 axes)
Min. 294m/s2 (5 times on 3 axes)
1500V[p-p]
Pulse width 50ns, 1µs (noise simulator)
IEC61000-4-5
1kV
LCD with backlight
500, 1000, 2000, 3000 ms (set with setting mode)
Approx. 450g
Approx. 200g
Expansion unit (Multi analog input, Digital I/O) Approx. 140g
January 1, 2015 00:00:00 to December 31, 2099 23:59:59
(leap year supported)
Time
accuracy
Monthly accuracy max. 15 sec. (at 25C)
Back up
period
About 1 month
(by secondary battery
*When power off after 48-hour or more of power on time, at 23C)
*1 only KW2M-X
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11.2 Measurement Specifications
●Power measurement (Main unit and Expansion unit (Power measurement))
2-circuit of 1-system
Main unit
(6-circuit of 1-system for 1P2W)
Measured circuit number
2-circuit of 1-system
Expansion unit
(6-circuit of 1-system for 1P2W)
8-circuit of 1-system (24-circuit of 1-system for 1P2W)
Max. measured circuit number
(3 Expansion units are connected to main unit.)
Measured data
AC sine
Single-phase two-wire (1P2W) (max.3-circuit)
Single-phase three-wire (1P3W)
Phase/wire system
(common)
Three-phase three-wire (3P3W)
Three-phase four-wire (3P4W)
Applicable power system
100V system, 200V system, 400V system
Measured frequency
50/60Hz
Sampling
Impedance
1.024MHz (approx.1.0μs)
100ms
Data update
22.5s for Harmonics (2nd to 31st except THD)
1P2W
L-L
0-690V AC *0-300V AC for UL standard
L-L
0-690V AC *0-300V AC for UL standard
1P3W
L-N
0-350V AC *0-152V AC for UL standard
3P3W
L-L
0-690V AC *0-300V AC for UL standard
L-L
0-690V AC *0-300V AC for UL standard
3P4W
L-N
0-398V AC *0-173V AC for UL standard
2 MΩ or more (L-N; V1/V2/V3/Vn)
Resolution
0.01V
Sampling rate
Direct input voltage
Voltage
Power consumption Approx. 0.2VA (L-N; V1/V2/V3 - Vn)
*±0.5% for 2-phase of 1P3W, 3-1 voltage of 3P3W
Accuracy *1
±0.2%
and line voltage of 3P4W.
Current
Input voltage
with VT
Primary voltage *3
100 to 500000V
Secondary voltage *3
100 to 690V
Input current
(with CT)
Primary current
Max. current
10A (200% of the rating)
Overload capacity
1000% of the rating for 3s
Resolution
0.001A
65,535A or less
Secondary current 1A or 5A (set with setting mode)
Power consumption Approx. 0.2VA (between K and L of CT)
Accuracy
*1
±0.2% *2
*±0.5% for 2(N)-phase of 1P3W and 2(S)-phase of 3P3W.
±0.5%
Power
Accuracy
*1
Active power
Class 0.5S (IEC 62053-22)
Reactive power
Class 2 (IEC 62053-23)
*1 Without error of current transformers (CT) and voltage transformers (VT)
*2 When it measures current under 5% of rating, it may not satisfy the accuracy according to setting of
CT. (Max.error 0.5%)
*3 When it input direct, set primary voltage and secondary voltage to the same value.
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KW2M Eco-POWER METER
●Leakage current measurement (Expansion unit (Power measurement))
Measured circuit number *1
1-circuit of 1-system (3-circuit of 1-system for 1P2W)
Max. measured circuit number 3-circuit
Measured frequency
50/60Hz
Sampling rate
Input leakage
current (with CT)
Max. current
Leakage
Current
Overload capacity
Resolution
Power consumption
Accuracy
Leakage period
Leakage
monitor
Accuracy
Sampling
Data update
Primary current
1.024MHz (approx. 1.0μs)
100ms
65,535A or less
Secondary current
1A or 5A (set with setting mode)
5A (100% of the rating)
1000% of the rating for 3s
0.0001A (0.1mA) *2
Approx. 0.2VA (between K and L of CT)
±2.5%
0.1 to 20.0s
±0.2s
Reset method
Key operation, RS485 communication or Ethernet communication
*1 When it set to leak measurement, it can measure power only 1-circuit, CH1.
*2 It doesn’t measure under 0.1% of rating current.
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KW2M Eco-POWER METER
11.3 Output Specifications (Main unit and Expansion unit (Digital I/O))
Number of
output point
Main unit
Expansion unit
(Digial I/O)
2 points *Insulate between output terminals
4 points *Insulate between output terminals
Insulation method
MOSFET relay
Output type
1a
Output capacity
100mA, 30V AC/DC
Output mode (OUT1/OUT2)
Pulse by
integral power
Alarm
Event
Pulse width
Pulse output
unit
Type
Alarm reset
Protection element
Indicator
Alarm output
Output signal
Output capacity
・Pulse by integral power
・Output by alarm or events
(set with setting mode)
1 to 100ms (set with setting mode)
0.001kWh/ 0.01kWh/ 0.1kWh/ 1kWh/ 10kWh/ 100kWh
Stand-by alarm/ Under voltage alarm/ Over voltage alarm/
Power interruption alarm/ Under current alarm/
Over current alarm/ Active power alarm/ Reactive power alarm/
Apparent power alarm/ PF alarm/ Over frequency alarm/
Under frequency alarm/ Voltage harmonics alarm/
Current harmonics alarm/ Voltage THD alarm/
Current THD alarm/ Unbalanced voltage alarm/
Unbalanced current alarm/
Power demand alarm/ Current demand alarm/ counter output/
Leakage alarm/ Digital conversion value upper limit alarm/
Digital conversion value lower limit alarm/
Temperature upper limit alarm/ Temperature lower limit alarm/
Level output (external control) / Time control *1
Self-reset (according to the setting) / Manual-reset
Varistor
Lighting alarm mark and blinking backlight
2 points (can set separately)
Normal; OFF Alarm; ON
100mA, 30V AC/DC
*1 only KW2M-X
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KW2M Eco-POWER METER
11.4 Input Specifications
●Pulse input (Main unit and Expansion unit (Digital I/O))
Main unit
1 point
Number of
Expansion unit
input point
2 points
(Digial I/O)
Insulation method
Designated insulation for input (insulate to the other functions)
Input method
Contact/ non-voltage a contact or open-collector
・Impedance; Max. 1kΩ
(when short-circuit current: Max. 10mA)
Input signal
Non-voltage
・Residual voltage when shorted; Max. 3V
・Impedance when open: Min. 100kΩ
Pulse input
Input mode
Synchronized with input from outer device *1
Measure maintenance time *1
Max. counting speed
2000Hz (when 2000Hz is set) / 30Hz (when 30Hz is set)
0.25ms (when 2000Hz is set) / 16.7ms(when 30Hz is set)
Min. input signal width
ON:OFF ratio＝1:1
Decimal point
Under 3-digit
Pre-scale
Range
0.001 to 100.000 (set with setting mode)
Output mode
HOLD
(when pulse output is selected)
Protective elements
Zener diode
1,000 to 99,000 pulse/kWh (set with setting mode)
Input signal
(External pulse converter is necessary.)
Pulse rate
0.001 to 100.000 kWh/pulse
Pulse width
0.25ms or more
2000Hz
0.5ms or more
Pulse interval
Pulse input
(OFF time 0.25ms or more)
Input condition
Pulse width
16.7ms or more
30Hz
33.4ms or more
Pulse interval
(OFF time 16.7ms or more)
Operation
5VDC 10mA
voltage/current
*1 only KW2M-X
R: resister
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KW2M Eco-POWER METER
●Analog input (Expansion unit (Multi analog input))
Input channel
3-channel
Exclusive insulation for input
Insulation system
(Not insulated between channels)
Voltage
0 to 60V
Input range
(select with setting mode) Current
0 to 20mA / 4 to 20mA (set with setting mode)
Digital conversion value
Resolution
-999999999 to 999999999 *1
Voltage
Current
Total accuracy
Conversion rate (Data update)
Input impedance
Absolute maximum rating
24bit
Within ±0.1%F.S. (at 25C)
Within ±0.3%F.S. (-10 to +50C)
100ms
Voltage
265kΩ
Current
80Ω
Voltage
-0.3 to +65V
Current
-2 to +28mA*2
Input protection
Diode
*1 Digital conversion value differs according to the setting scaling value.
When analog input value exceeds the upper or lower limit, it keeps the limit value for digital conversion
value.
*2 When it detects input of 28 mA or more, the protection circuit works and it switches to voltage
measurement.
●RTD input (Expansion unit (Multi analog input))
Input channel
2-channel
Exclusive insulation for input
Insulation system
(Not insulated between channels)
Pt 100
-200.0~+200.0C
Input range
Pt 1000
-200.0~+200.0C
Resolution (24bit)
0.1C
Within ±0.3%F.S. (at 25C)
CH1
Within ±0.5%F.S.(at-10 to +50C)
Total accuracy
Within ±0.5%F.S. (at 25C)
CH2
Within ±1.0%F.S.(at+10 to +40C)
Within ±1.5%F.S. (at-10 to +50C)
Conversion rate (Data update)*1
500ms
Input protection
Diode
*1 It displays the numerical value of shift average of sampling data during 5 sec.
3-wire temperature
detectors input
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KW2M Eco-POWER METER
11.5 Demand Monitor and Control Specifications (common to 9, 10)
IEC61557-12 demand
1. Sliding block interval
2. Fixed block interval
3. Current demand
Current transformer input
Pulse input *1
Demand type
Power input type
(set with setting mode)
Demand span
1 to 60 min. (set with setting mode)
Measurement item
Data update cycle
Present demand
1 min.
Present demand (active/ reactive/ apparent/
active(export)/ reactive(export)/ current)
Max.demand, Monthly max. demand (Latest 13 months)*2
Display
Saved data
*1 Only CH1 of main unit is available.
Only current transformer input is available for CH2 of Main unit and Expansion unit (power
measurement).
*2 only KW2M-X
11.6 Communication Specifications
Interface
Conforming to RS485
Communication method
Half-duplex
Synchronous system
Synchronous communication method
Isolation status
Isolated with the internal circuits
Protocol
MEWTOCOL, MODBUS(RTU) (select with setting mode)
Number of connected unit
99 (max.)
Transmission distance
*1
1200m
*2
115200,57600,38400,19200,9600,4800,2400bps
Transmission speed
(select with setting mode)
Data length
8bit (fixed)
Transmission
Not available / odd number / even number
Parity
(select with setting mode)
format
Stop bit
1bit, 2bit (select with setting mode)
*1 For RS485 converter on the computer side, we recommend SI-35 and SI-35USB (from LINE EYE
Co.,Ltd.). When using SI-35, SI-35USB or PLC from our company (which can be connected up to 99
units), up to 99 can be connected. In case using this system with the other devices, up to 31 can be
connected.
*2 Please check with the actual devices when some commercial devices with RS485 interface are
connected. The number of connected devices, transmission distance, and transmission speed may
be different according to using transmission line.
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KW2M Eco-POWER METER
< Ethernet >
Port number
Interface
Connector shape
Transmission speed
Transmission Transmission method
Max. segment length
Transmission cable
Protocol (DNS, DHCP)
2 port
IEEE802.3u,100BASE-T/10BASE-TX
RJ45
100Mbps / 10Mbps
Base band
100m
UTP (Category 5)
TCP/IP, UDP / IP
Setting, Monitoring measured values*3, Web customization
Web server
*2*3
Auto-negotiation *1
Functions
MDI / MDI-X Auto-crossover
Dedicated communication
MEWTOCOL, MODBUS(TCP) (2 session for each)
*Ethernet is the trademark of Xerox of USA.
*1 It changes the transmission speed automatically with auto-negotiation function.
*2 Control Web Creator is necessary to customize the web.
*3 only KW2M-X
11.7 Web Server Specifications (common to Main unit and Expansion unit)）
Simultaneous access number
6 sessions
Windows
Google Chrome
Mozilla Firefox
iOS *2
Web browser *1
Safari
Google Chrome
Android *2
Google Chrome
* Windows is the trademark of Microsoft Corporation in USA and other companies.
Google Chrome and Android are the trademarks of Google Inc.
Firefox is the trademark of Mozilla Foundation in USA and the other companies.
Safari and OS X are the trademark or the registered trademark of Apple Inc. of USA.
iOS is the trademark or the registered trademark of Cisco in USA and the other companies.
*1 Use OS and browser with the latest version.
*2 System Web is not supported.
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KW2M Eco-POWER METER
11.8 Main Unit Memory Specifications (only KW2M-X)
Logging Function
Save cycle
5-min.
instantaneous
value
Saved data
Write timing
Saved data
amount
Save cycle
15-min.
instantaneous
value
Saved data
Write timing
Saved data
amount
5 minutes
R-current, S-current, T-current, N-current, Average of current
R-voltage (L1-N), S-voltage (L2-N), T-voltage (L3-N),
Average of phase-voltage,
RS-voltage (L1-L2), ST-voltage (L2-L3), TR-voltage (L3-L1)
Average of line-voltage
Pulse count value
Digital conversion value(1), Digital conversion value(2),
Digital conversion value(3), Temperature(1), Temperature(2),
Count value(1), Count value(2), Leakage current(1),
Leakage current(2), Leakage current(3)
Every hour xx:05:05 (fixed)
96 records for 1 file (for one-day) (Max. 60 days)
15 minutes
Integral active power(1), (2), (3), Total integral active power,
Integral reactive power(1), (2), (3), Total integral reactive power,
Integral apparent power(1), (2), (3), Total integral apparent power,
Export active power(1), (2), (3), Total export active power,
Export reactive power(1), (2), (3), Total export reactive power,
Instantaneous active power(1), (2), (3), Total instantaneous active power,
Instantaneous reactive power(1), (2), (3), Total instantaneous
reactive power,
Instantaneous apparent power(1), (2), (3), Total instantaneous
apparent power,
R-current, S-current, T-current, N-current, Average of current
R-voltage (L1-N), S-voltage (L2-N), T-voltage (L3-N),
Average of phase-voltage,
RS-voltage (L1-L2), ST-voltage (L2-L3), TR-voltage (L3-L1)
Average of line-voltage
Power factor(1), (2), (3), Average of power factor
Frequency(1), (2), (3), Average of frequency
Current THD(1), (2), (3), Average of current THD
Phase-voltage THD(1), (2), (3), Average of phase-voltage THD
Line-voltage THD(1), (2), (3), Average of line-voltage THD
ON-time, OFF-time, Stand-by time, Maintenance-time,
Pulse count value
Digital conversion value(1), Digital conversion value(2),
Digital conversion value(3), Temperature(1), Temperature(2),
Count value(1), Count value(2), Leakage current(1),
Leakage current(2), Leakage current(3)
Every hour xx:15:05 (fixed)
2976 records for 1 file (for one-month) (Max. 24 months)
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KW2M Eco-POWER METER
Save cycle
Customized log
Saved data
Demand
Write timing
Saved data
amount
Save cycle
Saved data
Write timing
Saved data
amount
Power quality
Saved data
Write timing
Saved data
amount
15 minutes
Select items below max. 8-item
Integral active power(1), (2), (3), Total integral active power,
Integral reactive power(1), (2), (3), Total integral reactive power,
Integral apparent power(1), (2), (3), Total integral apparent power,
Export active power(1), (2), (3), Total export active power,
Export reactive power(1), (2), (3), Total export reactive power,
Instantaneous active power(1), (2), (3), Total instantaneous active power,
Instantaneous reactive power(1), (2), (3),
Total instantaneous reactive power,
Instantaneous apparent power(1), (2), (3),
Total instantaneous apparent power,
R-current, S-current, T-current, N-current, Average of current
R-voltage (L1-N), S-voltage (L2-N), T-voltage (L3-N),
Average of phase-voltage,
RS-voltage (L1-L2), ST-voltage (L2-L3), TR-voltage (L3-L1)
Average of line-voltage
Power factor(1), (2), (3), Average of power factor
Frequency(1), (2), (3), Average of frequency
Current THD(1), (2), (3), Average of current THD
Phase-voltage THD(1), (2), (3), Average of phase-voltage THD
Line-voltage THD(1), (2), (3), Average of line-voltage THD
ON-time, OFF-time, Stand-by time, Maintenance-time,
Pulse count value
Digital conversion value(1), Digital conversion value(2),
Digital conversion value(3), Temperature(1), Temperature(2),
Count value(1), Count value(2), Leakage current(1),
Leakage current(2), Leakage current(3)
Every hour xx:15:05 (fixed)
2976 records for 1 file (for one-month) (Max. 24 months)
1 minute
Present demand
(active power, reactive power, apparent power,
active power(export), reactive power(export))
Pulse conversion value for integral power,
Present current demand (1), (2), (3)
Every hour xx:25:05 (fixed)
1000 records for 1 file (Max. 100 files)
Power interruption, Over voltage, Under voltage, Over current,
Under current
(with time stamp of event occurrence and occurrence period)
Every hour xx:35:00 (fixed)
1000 records for 1 file (Max. 100 files)
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KW2M Eco-POWER METER
11.9 Self-diagnostic
When error is happened, error code will be indicated.
List of Error Code
No.
W0001
W0002
W0003
W0004
W0005
W0006
W0007
W0008
W0009
W0013
Name
DHCP server access error
Obtain the illegal IP address by DHCP
server
IP address duplication
SNTP server access error
SNTP server domain name error
FTP server access error
FTP server domain name error
FTP server log in error
E0042
No directory of FTP server
During lock out web server according to
authentication failure
Remove the expansion units
E0049
Hard ware error
E0091
Internal memory error 1
E0096
Internal memory error 2
Action to take
Connect to DHCP server.
Confirm DHCP server.
Change IP address.
Confirm the access to SNTP server
Confirm SNTP server domain name
Confirm the access to FTP server
Confirm FTP server domain name
Confirm user name and password of FTP
server
Confirm the directory in FTP server
Leave it 10 minutes
Turn off power and connect the
expansion unit
Turn on power again
When it doesn’t recovery, change main unit
because of the life is short.
Turn on power again
When it doesn’t recovery, change main unit
because of the life is short
Turn on power again
When it doesn’t recovery, change main unit
because of the life is short
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KW2M Eco-POWER METER
Chapter 12
Mounting
12.1 Dimensions
12.1.1 Main unit (KW2M-A/KW2M-X)
(Unit: mm)
(Clearance: ±1.0)
12.1.2 Expansion unit
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KW2M Eco-POWER METER
Revision History
Issue Date
Manual No.
Content of revision
June, 2015
January, 2016
WUME-KW2MA-01
WUME-KW2MA-02
January, 2018
WUME-KW2MA-03
May, 2019
WUME-KW2MA-04
March, 2021
WUME-KW2MA-05
First edition
2nd edition
Add series (KW2M-X Eco-POWER METER)
3rd edition
Add series, Expansion unit (Multi analog input) and
Expansion unit (Digital I/O)
[Add functions]
-Customized logging function for KW2M-X
-Leakage current measurement mode
for Expansion unit (Power measurement)
-Combination Demand function
4th edition
[Correct errors]
- Delete note for 5.7 Logging Data Writing Function
5th edition
[Delete]
- Incorrect description
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