Monitoring Relays
1-Phase True RMS AC/DC Over and Under Current
Types DIC01, PIC01
DIC01
• TRMS AC/DC over + under, over+over,
under+under current and voltage monitoring relays
• DC process signal plus/minus monitoring relay (DIC01)
• Selection of measuring range by DIP-switches
• Adjustable current and voltage on relative scale
• Adjustable hysteresis on relative scale
• Separately adjustable delay functions (0.1 to 30 s)
• Programmable latching or inhibit at set level
• Output: 1 or 2 x 8 A SPDT relay N.D. or N.E. selectable
• For mounting on DIN-rail in accordance with
DIN/EN 50 022 (DIC01) or plug-in module (PIC01)
• 45 mm Euronorm housing (DIC01)
or 36 mm plug-in module (PIC01)
• LED indication for relay(s), alarm and power supply ON
• Galvanically separated power supply
PIC01
Product Description
Ordering Key
DIC01 and PIC01 are precise
TRMS
AC/DC
over+under, over+over or
under+under current and
voltage (selectable by DIPswitch) monitoring relays.
DIC01 can perform also DC
plus/minus measurement by
short circuiting pins Z3 and
Y1. The devices can be connected to the MI or MP and
A82 or E83 current transformers.
Both relays have two individual set levels with their
Housing
Function
Type
Item number
Output
Power supply
Range
own time delay. Only for
DIC01 each set level can
work with a single SPDT
relay.
Owing to the built-in latch
function, the ON-position of
the relay output can be
maintained. Inhibit function
can be used to avoid relay
operation when not desired
(maintenance, transitions).
The LED's indicate the state
of the alarm and the output
relays.
DIC 01 D B23 AV0
Type Selection
Mounting
Output
Supply: 24 to 48 VAC/DC
Supply: 115/230 VAC
DIN-rail
Plug-in
2xSPDT
SPDT
DIC 01 D D48 AV0
PIC 01 C D48 AV0
DIC 01 D B23 AV0
PIC 01 C B23 AV0
Input Specifications
Input
Current level
Voltage level
DC levels
(DIC01 only)
Measuring current ranges
Direct
Selectable by DIP-switch
0.5 to 5 mA AC/DC
2 to 20 mA AC/DC
-5 to 5 mA DC
(DIC01
-20 to 20 mA DC
only)
Max. current for 1 s
}
DIC01: Terminals Y1, Y2
PIC01: Terminals 6, 7
DIC01: Terminals Y1, Y3
PIC01: Terminals 5, 7
Connecting terminals Z3, Y1
Internal resis.
Max. curr.
50 Ω
50 Ω
50 Ω
50 Ω
35 mA
55 mA
35 mA
55 mA
100 mA
Specifications are subject to change without notice (26.05.10)
Measuring voltage ranges
Direct
Selectable by DIP-switch
0.1 to 1 V AC/DC
1 to 10 V AC/DC
0.4 to 4 Vp AC
(DIC01
-1 to 1 VDC
-10 to 10 VDC
only)
Max. voltage for 1 s
}
Internal resis.
Max. volt.
> 10 kΩ
> 10 kΩ
> 10 kΩ
> 10 kΩ
> 10 kΩ
7V
20 V
100 V
7V
20 V
100 V
Note 1:
The input voltage cannot
raise over 300 VAC/DC with
respect to ground (PIC01 only)
1
DIC01, PIC01
Input Specifications (cont.)
CT ranges
MI and MP ranges (0.4 to 4 Vp input)
1-ph.:
3-ph.:
MP 3005
MI 5
MI 20
MP 3020
MI 100
MP 3100
MI 500
MP 3500
Note 2:
MP 3... current transformers
not suitable for under current
measurements due to the
output signal of the device
(see data sheet)
CT ranges (cont.)
A82 ranges (2 to 20 mA input)
A82-10/20 25
A82-10/20 50
A82-10/20 100
A82-10/20 250
A82-10/20 500
E83 ranges (2 to 20 mA input)
E83-20 50
Contact input
DIC01
PIC01
Disabled
Enabled
Latch disable
Output Specifications
AAC rms
Max. curr.
0.5 to 5 A
2 to 20 A
10 to 100 A
50 to 500 A
20 AAC
50 AAC
250 AAC
750 AAC
AAC rms
Max. curr.
2.5 to 25 A
5 to 50 A
10 to 100 A
25 to 250 A
50 to 500 A
30 AAC
60 AAC
120 AAC
300 AAC
600 AAC
5 to 50 A
100 AAC
Output
Rated insulation voltage
Contact ratings (AgSnO2)
Resistive loads
AC 1
DC 12
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
1 or 2 x SPDT relays
250 VAC
µ
8 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
≥ 30 x 106 operations
≥ 105 operations
(at 8 A, 250 V, cos ϕ = 1)
≤ 7200 operations/h
Operating frequency
Dielectric strength
Dielectric voltage
≥ 2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 µs)
Supply Specifications
Power supply
Rated operational voltage
through terminals:
A1, A2 or A3, A2 (DIC01)
2, 10 or 11, 10
(PIC01)
Terminals Z1, Y1
Terminals 8, 9
> 10 kΩ
< 500 Ω
> 500 ms
D48:
B23:
Dielectric voltage
Supply to input
Supply to output
Input to output
Rated operational power
AC
DC
Overvoltage cat. III
(IEC 60664, IEC 60038)
24 to 48 VAC/DC ± 15%
45 to 65 Hz, insulated
115/230 VAC ± 15%
45 to 65 Hz, insulated
DC supply
AC supply
2 kV
4 kV
4 kV
4 kV
4 kV
4 kV
5 VA
3W
General Specifications
Power ON delay
Reaction time
Alarm ON delay
Alarm OFF delay
Accuracy
Temperature drift
Delay ON alarm
Repeatability
Indication for
Power supply ON
Alarm ON
Output relay ON
Environment
Degree of protection
Pollution degree
Operating temperature
Storage temperature
2
1 s ± 0.5 s or 6 s ± 0.5 s
(input signal variation from
-20% to +20% or from
+20% to -20% of set value)
< 100 ms
< 100 ms
(15 min warm-up time)
± 1000 ppm/°C
± 10% on set value ± 50 ms
± 0.5% on full-scale
LED, green
LED, red (flashing 2 Hz
during delay time)
1 or 2 x LED(s), yellow
(EN 60529)
IP 20
3 (DIC01), 2 (PIC01)
-20 to 60°C, R.H. < 95%
-30 to 80°C, R.H. < 95%
Housing
Dimensions
Material
Weight
Screw terminals
Tightening torque
Product standard
Approvals
CE Marking
EMC
Immunity
Emissions
DIC01
PIC01
45 x 80 x 99.5 mm
36 x 80 x 94 mm
PA66 or Noryl
Approx. 250 g
Max. 0.5 Nm
acc. to IEC 60947
EN 60255-6
UL, CSA
L.V. Directive 2006/95/EC
EMC Directive 2004/108/EC
According to EN 60255-26
According to EN 61000-6-2
According to EN 60255-26
According to EN 61000-6-3
Specifications are subject to change without notice (26.05.10)
DIC01, PIC01
Mode of Operation
DIC01 and PIC01 monitor
both AC and DC current and
voltage. DIC01 can also
monitor positive and negative DC voltage connecting
terminals Y1 and Z3.
Example 1
(no
contact
input
under+over voltage - 2 x
SPDT N.D. relays (1 x SPDT
for PIC01) - TRMS)
DIC01: One relay operates
when the voltage drops
below the under voltage set
point for more than the
respective delay time. It
releases when the voltage
exceeds the set level plus
the set hysteresis. The other
relay operates when the
voltage exceeds the over
voltage set point for more
than the respective delay
time. It releases when the
voltage drops below the set
level minus hysteresis.
PIC01: The relay operates
when the voltage drops
below the under voltage set
level for more than the
respective set delay time or
when it exceeds the over
voltage set level for more
than the relative set delay
time. The relay releases
when the voltage exceeds
the under voltage set level
plus hysteresis and it drops
below the over voltage set
level minus hysteresis (the
hysteresis is the same for
both set levels).
Example 2
(latch enable active under+under current - 2 x
SPDT relays (1 x SPDT for
PIC01) - TRMS)
DIC01: Each relay operates
and latches when the current drops below the respective set level for more than
the respective delay time.
Provided that the current
has exceeded the respective
set level plus hysteresis,
each relay releases when the
contact input’s connection is
interrupted.
PIC01: The relay operates
when the current drops
below the higher set level for
more than the respective
delay time. Provided that the
current has exceeded the
higher set level plus hysteresis the relay releases when
the contact input’s connections is interrupted.
Note
Different delay times can be
used for appropriate reaction according to the set
points.
Specifications are subject to change without notice (26.05.10)
Example 3
(inhibit enable active over+over current with MI
CT - DPDT relay (SPDT for
PIC01) - TRMS)
Provided that the contact
input’s connection is interrupted, the relay operates
when the current flowing in
the MI CT exceeds the lower
set level for more than the
respective delay time. It
releases when the current
drops below the lower set
level minus hysteresis or
when the contact input’s
pins are connected.
Example 4
(inhibit enable active over+over current with A8210 CT - DPDT relay (1 x
SPDT for PIC01) - TRMS
Provided that the contact
input’s connection is interrupted, the relay operates
when the current flowing in
the A82-10 CT exceeds the
lower set level for more than
its delay time. It releases
when the current drops
below the lower set level
minus hysteresis or when
the contact input’s pins are
connected.
Example 5 (DIC01 only)
contact
input
(no
under+over voltage - 2 x
N.D.
relays
SPDT
plus/minus DC
One relay operates when the
voltage drops below the
under voltage set point for
more than the respective
delay time. It releases when
the voltage exceeds the set
level plus the set hysteresis.
The other relay operates
when the voltage exceeds
the over voltage set point for
more than the respective
delay time. It releases when
the voltage drops below the
set level minus hysteresis.
In this case the spare front
label has to be placed on
the device for proper level
adjustment.
Note
When the inhibit contact is
opened, if the input signal is
already in alarm position, the
delay time needs to elapse
before relay(s) activation.
3
DIC01, PIC01
Function/Range/Level and Time Delay Setting
Adjust the input range setting the DIP switches 1 and
2 of the main black selector
as shown below.
Select the desired function
setting the DIP switches 3 to
6 of the black selector and
1, 2 of the small red selector
as shown below.
To access the DIP switches
open the grey plastic cover
as shown below
The selection between current and voltage is automatically selected through the
input connectors.
TRMS or positive/negative
DC monitoring selectable by
short-circuiting terminals
Y1 and Z3 (DIC01 only).
Selection of level, time
delay and hysteresis:
Upper knob:
Setting of hysteresis on relative scale: 0 to 30% on set
value.
Centre knobs:
Current level setting on relative scale: 10 to 110% on
full scale.
Lower knobs:
Setting of delay on alarm
time on absolute scale (0.1
to 30 s).
Measuring range (depending on connections)
SW1
ON
ON
OFF
Connect Input term. SW2
OFF
ON
ON
None
DIC01: Y1,Y2
0.5 to 5 mA 2 to 20 mA None
AC/DC
AC/DC
PIC01: 5,7
Y1 to Z3 DIC01: Y1,Y2
-5 to +5 -20 to +20
None
mA DC
mA DC
1 to 10 V
DIC01: Y1,Y3
0.1 to 1V
4 Vp
None
PIC01: 6,7
AC/DC
AC/DC
Y1 to Z3 DIC01: Y1,Y3
-1 to +1
None
-10 to +10
V DC
V DC
Relay(s) working mode
ON: Normally De-energized (ND)
OFF: Normally Energized (NE)
Power ON delay
ON: 6 s ± 0.5 s
OFF: 1 s ± 0.5 s
Set Point 2 (SP2)
monitoring function
ON: Over current or voltage
OFF: Under current or voltage
Contact input
ON: Latch function enable
OFF: Inhibit function enable
Relay(s) coupling
ON: 2 x SPDT (DIC01 only)
OFF: 1 x DPDT (DIC01, PIC01)
Set Point 1 (SP1) monitoring function
ON: Over current or voltage
OFF: Under current or voltage
Operation Diagrams
Over+over voltage/current - N.D. relay(s)
1
1
2
Over+over voltage/current - Latch - N.D. relay(s)
2
1
2
4
1
2
Specifications are subject to change without notice (26.05.10)
DIC01, PIC01
Operation Diagrams (cont.)
Over+under voltage/current - Inhibit - N.E. relay(s)
Over+under voltage/current - N.E. relay(s)
1
1
2
1
1
2
1
2
1
Under+under voltage/current - N.D. relay(s)
1
1
2
Wiring Diagrams
24÷48 VAC/DC
230VAC 115VAC
24÷48 VAC/DC
230VAC 115VAC
24÷48 VAC/DC
230VAC 115VAC
24÷48 VAC/DC
230VAC 115VAC
DIC01
Specifications are subject to change without notice (26.05.10)
24÷48 VAC/DC
230VAC 115VAC
PIC01
5
DIC01, PIC01
Wiring Diagrams (cont.)
24÷48 VAC/DC
230VAC 115VAC
24÷48 VAC/DC
230VAC 115VAC
24÷48 VAC/DC
230VAC 115VAC
24÷48 VAC/DC
230VAC 115VAC
24÷48 VAC/DC
230VAC 115VAC
PIC01
DIC01
Dimensions
DIN-rail
Plug-in
80
63
63
28.5
6
90
36
83.5
80
94
99.5
45
28.5
Specifications are subject to change without notice (26.05.10)