UNO2-PS/1AC/24DC/240W
Power supply unit
Data sheet
109640_en_00
1
© PHOENIX CONTACT 2021-09-08
Description
The UNO POWER power supply features maximum energy
efficiency and can be used anywhere in the world.
Thanks to its high power density, the UNO POWER power
supply unit is the ideal solution, particularly in compact
control boxes.
Space-saving
–
–
–
Particularly compact design
480 W nominal power with an overall width of 59 mm
Alignable without minimum clearance to neighboring
modules
Flexible use
–
–
–
–
Large, wide-range input of the AC supply voltage
Adjustable DC output voltage
Reliable device startup, even at -40°C
Efficiency up to 94.6%
Easy system diagnostics
–
–
Technical data (short form)
Input voltage range
Mains buffering time
100 V AC ... 240 V AC -15 % ... +10 %
typ. 16 ms (120 V AC)
typ. 20 ms (230 V AC)
Nominal output voltage (UN)
24 V DC
Nominal output current (IN)
10 A
Efficiency (for nominal values)
typ. 92 % (120 V AC)
typ. 93.7 % (230 V AC)
Setting range of the output voltage
(USet)
Nominal output power (PN)
Residual ripple
MTBF (IEC 61709, SN 29500)
24 V DC ... 28 V DC
240 W
typ. 50 mVPP
> 1219000 h (25 °C)
> 678000 h (40 °C)
> 366000 h (55 °C)
Ambient temperature (operation)
-25 °C ... 70 °C (> 55 °C Derating: 2.5 %/K)
Dimensions W x H x D
45 x 130 x 129 mm
Startup type tested
Weight
-40 °C
0.75 kg
DC OK LED
Floating switch contact
All technical specifications are nominal and refer to a room temperature of 25 °C and 70% relative humidity at
100 m above sea level.
UNO2-PS/1AC/24DC/240W
2
Table of contents
1
Description ..................................................................................................................................1
3
Ordering data ..............................................................................................................................4
2
4
5
6
Table of contents......................................................................................................................... 2
Technical data.............................................................................................................................5
Safety and installation notes...................................................................................................... 13
High-voltage test (HIPOT) ......................................................................................................... 14
6.1
6.2
6.3
High-voltage dielectric test (dielectric strength test) .....................................................................................14
High-voltage dielectric test during the manufacturing process......................................................................14
High-voltage dielectric test performed by the customer ................................................................................14
6.3.1 Performing high-voltage testing.........................................................................................................14
7
Design ....................................................................................................................................... 15
8
Mounting/remove .................................................................................................................................................17
9
Device connection terminal blocks .................................................................................................................19
7.1
7.2
7.3
7.4
Rating plate ..................................................................................................................................................15
Device connections and functional elements................................................................................................15
Block diagram...............................................................................................................................................16
Device dimensions .......................................................................................................................................17
8.1
8.2
8.3
8.4
8.5
8.6
Convection ...................................................................................................................................................17
Mounting position .........................................................................................................................................18
Installation height..........................................................................................................................................18
Keep-out areas .............................................................................................................................................18
Mounting the power supply unit ....................................................................................................................18
Removing the power supply unit...................................................................................................................19
9.1
9.2
AC input terminal blocks ...............................................................................................................................19
Protection of the primary side .......................................................................................................................20
9.2.1 Fuse protection in a single-phase supply system ..............................................................................20
9.2.2 Fuse protection in a three-phase supply system ...............................................................................20
Supply system configurations and systems ..................................................................................................20
9.3.1 Connection versions, single-phase supply system ............................................................................20
9.3.2 Connection versions, three-phase supply system .............................................................................20
DC output terminal blocks.............................................................................................................................21
9.4.1 Wiring principle for DC output terminals ............................................................................................21
9.4.2 Protection of the secondary side .......................................................................................................21
Connection terminal blocks, floating switch contact (13/14) .........................................................................21
9.5.1 Wiring principle for the floating switch contact...................................................................................21
9.3
9.4
9.5
10 Function elements ..................................................................................................................... 22
10.1
10.2
10.3
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Operating element – potentiometer UOut .....................................................................................................22
Display element – DC OK LED .....................................................................................................................22
Control element – floating switch contact (13/14) .........................................................................................22
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UNO2-PS/1AC/24DC/240W
11 Output characteristic curves............................................................................................................................. 23
12 Connection versions ........................................................................................................................................... 23
12.1
12.2
12.3
Series operation ........................................................................................................................................... 23
Redundant operation.................................................................................................................................... 24
Fundamental prerequisites for parallel operation (redundancy operation).................................................... 24
13.1
13.2
13.3
Ambient temperature.................................................................................................................................... 25
Installation height ......................................................................................................................................... 25
Position-dependent derating ........................................................................................................................ 26
13.3.1 Normal mounting position ................................................................................................................. 26
13.3.2 Rotated mounting position 90° Z-axis ............................................................................................... 26
13.3.3 Rotated mounting position 180° Z-axis ............................................................................................. 27
13.3.4 Rotated mounting position 270° Z-axis ............................................................................................. 27
13.3.5 Rotated mounting position 90° X-axis ............................................................................................... 28
13.3.6 Rotated mounting position 270° X-axis ............................................................................................. 28
13 Derating .....................................................................................................................................25
14 Disposal and recycling...............................................................................................................28
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UNO2-PS/1AC/24DC/240W
3
Ordering data
Description
Type
Order No.
Pcs./Pkt.
Primary-switched power supply unit, UNO POWER,
Screw connection, DIN rail mounting, input: 1-phase,
output: 24 V DC / 10 A
UNO2-PS/1AC/24DC/240W
1096432
Accessories
Type
Order No.
Pcs./Pkt.
Redundancy module, 5 V - 24 V DC, 2 x 10 A, 1 x 20 A.
1
UNO-DIODE/5-24DC/2X10/
1X20
2905489
2320186
1
Redundancy module, TRIO DIODE, Push-in connection,
DIN rail mounting,
TRIO2-DIODE/12-24DC/
2X20/1X40
2907379
1
2905229
1
Electronic circuit breaker, number of positions: 1,
mounting type: DIN rail: 35 mm, Color: light grey
RAL 7035
CBMC E4 24DC/1-4A NO
2906031
1
CBMC E4 24DC/1-10A NO
2906032
1
Electronic circuit breaker, number of positions: 1,
mounting type: DIN rail: 35 mm, Color: light grey
RAL 7035
CBMC E4 24DC/1-4A+ IOL
2910410
1
CBMC E4 24DC/1-10A IOL
2910411
1
Electronic circuit breaker, number of positions: 1,
mounting type: DIN rail: 35 mm, Color: light grey
RAL 7035
CBM E4 24DC/0.5-10A NO-R 2905743
1
CBM E8 24DC/0.5-10A NO-R 2905744
1
Active QUINT redundancy module for DIN rail mounting QUINT-ORING/24DC/2X20/
with ACB (Auto Current Balancing) Technology and
1X40
monitoring functions, input: 24 V DC/2x 20 A, output: 24 V
DC/1 x 40 A, including mounted UTA 107/30 universal DIN
rail adapter
Pluggable device protection, according to type 3/class III, PLT-SEC-T3-230-FM
for 1-phase power supply networks with separate N and
PE (3-conductor system: L1, N, PE), with integrated
surge-proof fuse and remote indication contact. Also
suitable for DC applications.
Electronic circuit breaker, number of positions: 1,
mounting type: DIN rail: 35 mm, Color: light grey
RAL 7035
Electronic circuit breaker, number of positions: 1,
mounting type: DIN rail: 35 mm, Color: light grey
RAL 7035
Electronic circuit breaker, number of positions: 1,
mounting type: DIN rail: 35 mm, Color: light grey
RAL 7035
1
The range of accessories is being continuously extended. The current range of accessories can be found in
the download area for the product.
109640_en_00
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UNO2-PS/1AC/24DC/240W
4
Technical data
Input data
Unless otherwise stated, all data applies for 25°C ambient temperature, 230 V AC input voltage, and nominal
output current (IN).
Input voltage range
(for DC, connect a suitable fuse)
100 V AC ... 240 V AC -15 % ... +10 %
Derating
< 90 V AC
1 %/V
Frequency range (fN)
50 Hz ... 60 Hz 10 %
Typical national grid voltage
120 V AC
230 V AC
Network type
Star network (TN, TT, IT (PE))
Current consumption
100 V AC
120 V AC
230 V AC
240 V AC
2.6 A
2.2 A
1.13 A
1.2 A
Discharge current to PE
< 3.5 mA
Mains buffering time
120 V AC
230 V AC
typ. 16 ms
typ. 20 ms
Switch-on time
typ. 400 ms
Inrush current (at 25 °C)
typ. 10 A
Inrush current integral (I2t)
< 0.2 A2s
Device mains fuse , internal (device protection), fast-blow 5 A
During the first few microseconds, the current flow into the filter capacitors is excluded.
The SCCR (short-circuit current rating) value of the power supply unit corresponds to the SCCR value of the
backup fuse.
Input protection, AC (to be connected externally upstream)
Input current IIn
Input protection
Characteristics
4A
6A
10 A
13 A
16 A
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Neozed fuse
or equivalent
Circuit breaker
A
-
-
-
-
-
B
C
D
K
gG
Power switch
≤ 13 x IIn
(maximum magnetic tripping)
-
-
-
-
-
-
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UNO2-PS/1AC/24DC/240W
Protective circuit
Type of protection
Transient surge protection
Protective circuit/component
Varistor, gas-filled surge arrester
Electric strength of the insulation
Housing
Signaling
PE
3.1 13
1.1
3.2 14
B
C
D
Input
Output
A
L 1.2
2.1
2.2
2.3
2.4
N 1.3
+
Test voltage
A
Type test (IEC/EN 61010-1)
Production test
C
D
2.2 kV AC
0.5 kV AC
0.5 kV AC
3 kV AC
1.5 kV AC
1.1 kV AC
1.1 kV AC
2.5 kV AC
Field test (with gas-filled surge arrester)
B
--
--
--
--
Power Factor
POWER factor
1,1
1,0
0,9
0,8
0,7
0,6
0,5
0,4
0,3
0
ij
Ĵ
2
4
6
ij = UIn: 120 V AC/UOut : 24 V DC
Ĵ = UIn: 230 V AC/UOut : 24 V DC
8
10
12
14
16
18
20
IOut [A]
Crest factor
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120 V AC
typ. 1.65
230 V AC
typ. 1,63
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UNO2-PS/1AC/24DC/240W
IIn [A]
Input current vs. output current
5
4,5
4
3,5
3
2,5
2
1,5
1
0,5
0
0
Ĵ
ij
ij = UIn: 120 V AC/UOut : 24 V DC
Ĵ = UIn: 230 V AC/UOut : 24 V DC
2
4
6
8
10
12
14
16
18
20
IOut [A]
Connection data input
Connection method
Screw connection
Connection level
1.x
Stripping length
6.5 mm
Connection labeling
Torque
Conductor cross section solid
Conductor cross section flexible
Flexible conductor cross section (ferrule with plastic
sleeve)
Flexible conductor cross section flexible (ferrule, w/o
plastic sleeve)
Conductor cross section AWG (Cu)
Output data
1.1 (), 1.2 (L), 1.3 (N)
0.5 Nm ... 0.6 Nm / 4 lbf-in. ... 5 lbf-in.
0.2 mm² ... 2.5 mm²
0.2 mm² ... 2.5 mm²
0.25 mm² ... 2.5 mm²
0.25 mm² ... 2.5 mm²
24 ... 14
Nominal output voltage (UN)
24 V DC
Nominal output current (IN)
10 A
Control deviation
change in load, static 10 % ... 90 %
change in load, dynamic 10 % ... 90 %
change in input voltage ±10 %
1219000 h
> 678000 h
> 366000 h
General data
Degree of protection
IP20
Protection class
I
Flammability rating UL 94
Housing, terminal blocks
V0
Housing material
Aluminum (AlMg3) / sheet steel, zinc-plated
Foot latch material
Sheet steel, zinc-plated
Dimensions (W x H x D)
45 x 130 x 129 mm
Device depth (DIN rail mounting)
125 mm
Weight
0.75 kg
Power dissipation
No load
Efficiency
Eta [%]
230 V AC
< 25 W
< 19 W
2000 m, Derating: 10 %/1000 m)
Max. permissible relative humidity (operation)
Vibration (operation)
Shock (operation)
IEC 60068-2-27
Degree of pollution
Climate class
EN 60721
Overvoltage category
EN 61010-1
EN 62477-1
Standards/specifications
Safety of power supply units up to 1100 V (insulation
distances)
≤ 95 % (at 25 °C, non-condensing)
10 Hz ... 50 Hz, amplitude ±0.2 mm
50 Hz to 150 Hz, 2.3 g, 90 min.
18 ms, 30g, per spatial direction
2
3K3
II (≤ 3000 m)
III (≤3000 m)
DIN EN 61558-2-16
Electrical safety
IEC 61010-2-201 (SELV)
Safety for equipment for measurement, control, and
laboratory use
IEC 61010-1
Safe isolation
IEC 61558-2-16 IEC 61010-2-201
Equipping high voltage installations with electronic
equipment
EN 50178/VDE 0160 (PELV)
Protective extra-low voltage
IEC 61010-1 (SELV) IEC 61010-2-201 (PELV)
Limitation of harmonic line currents
EN 61000-3-2
Requirement of the semiconductor industry with regard to SEMI F47 - 0706 (185 V AC)
mains voltage dips
Conformance/Approvals
UL
Temperature class (ANSI/UL 121201)
Temp code
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UL/C-UL Listed UL 61010-1
UL/C-UL Listed UL 61010-2-201
UL/C-UL Listed ANSI/UL 121201 Class I, Division 2, Groups A,
B, C, D (Hazardous Location)
CB scheme (IEC 61010-1, IEC 61010-2-201)
T4 (-10...+70 °C; >55 °C, Derating: 2.5 %/K)
Current approvals/permissions for the product can be found in the download area under
phoenixcontact.net/products
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UNO2-PS/1AC/24DC/240W
Electromagnetic compatibility
Conformance with EMC Directive 2014/30/EU
Noise emission according to EN 61000-6-3 (residential and commercial) and EN 61000-6-4 (industrial)
CE basic standard
Conducted noise emission EN 55016
Higher requirements in
practice (covered)
EN 61000-6-4 (Class A)
EN 61000-6-3 (Class B)
Minimum normative
requirements of EN 610006-2 (CE)
(immunity for industrial
environments)
Higher requirements in
practice (covered)
4 kV (Test Level 2)
6 kV (Test Level 3)
Criterion B
Criterion A
EN 61000-6-4 (Class A)
Noise emission EN 55016
Harmonic currents EN 61000-3-2
EN 61000-3-2 (Class A)
EN 61000-6-2:2005
CE basic standard
Electrostatic discharge EN 61000-4-2
Housing contact discharge
Housing air discharge
Electromagnetic HF field EN 61000-4-3
Comments
Frequency range
8 kV (Test Level 3)
80 MHz ... 1 GHz
EN 61000-6-3 (Class B)
EN 61000-3-2 (Class A)
8 kV (Test Level 3)
80 MHz ... 1 GHz
Test field strength
10 V/m (Test Level 3)
10 V/m (Test Level 3)
Test field strength
3 V/m (Test Level 2)
10 V/m (Test Level 3)
Input
2 kV (Test Level 3 asymmetrical)
4 kV (Test Level 4 asymmetrical)
Frequency range
Fast transients (burst) EN 61000-4-4
Comments
Output
Surge voltage load (surge) EN 61000-4-5
Comments
Input
Output
Comments
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Minimum normative
requirements
1.4 GHz ... 6 GHz
Criterion A
1 GHz ... 6 GHz
Criterion A
2 kV (Test Level 3 asymmetrical)
2 kV (Test Level 3 asymmetrical)
1 kV (Test Level 2 symmetrical)
2 kV (Test Level 3 asymmetrical)
2 kV (Test Level 3 symmetrical)
4 kV (Test Level 4 asymmetrical)
Criterion B
Criterion A
Criterion B
0.5 kV (Test Level 1 symmetrical)
0.5 kV (Test Level 1 asymmetrical)
Criterion A
1 kV (Test Level 2 symmetrical)
2 kV (Test Level 3 asymmetrical)
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UNO2-PS/1AC/24DC/240W
EN 61000-6-2:2005
CE basic standard
Conducted interference EN 61000-4-6
Input/output
Frequency range
Voltage
Voltage dips EN 61000-4-11
Input voltage (230 V AC, 50 Hz)
Comments
Voltage dip
Comments
Voltage dip
Comments
Voltage dip
Comments
Key
Criterion A
Criterion B
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Minimum normative
requirements of EN 610006-2 (CE)
(immunity for industrial
environments)
Higher requirements in
practice (covered)
asymmetrical
asymmetrical
0.15 MHz ... 80 MHz
0.15 MHz ... 80 MHz
Criterion A
Criterion A
10 V (Test Level 3)
10 V (Test Level 3)
70 %, 25 periods (Test Level
2)
70 % , 25 / 30 periods
40 %, 10 periods (Test Level
2)
40 %, 12 periods (Test Level
2)
0 %, 1 period (Test Level 2)
0 %, 1 period (Test Level 2)
Criterion A
Criterion A
Criterion B
Criterion A
Criterion A
Criterion B
Normal operating behavior within the specified limits.
Temporary impairment to operational behavior that is corrected by the device itself.
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UNO2-PS/1AC/24DC/240W
5
Safety and installation notes
Safety notes and warning instructions
Symbols used
WARNING: Danger to life by electric shock!
Instructions and possible hazards are indicated by
corresponding symbols in this document.
This is the safety alert symbol. It is used to alert
you to potential personal injury hazards. Obey all
safety measures that follow this symbol to avoid
possible personal injuries.
There are different categories of personal injury that are
indicated by a signal word.
–
–
–
–
WARNING
NOTE
This indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
This indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
The following symbols are used to indicate potential
damage, malfunctions, or more detailed sources of
information.
NOTE
This symbol together with the signal word NOTE
and the accompanying text alert the reader to a
situation which may cause damage or malfunction
to the device, hardware/software, or surrounding
property.
This symbol and the accompanying text provide
the reader with additional information or refer to
detailed sources of information.
–
–
–
–
–
–
–
–
–
–
–
–
–
–
109640_en_00
Only skilled persons may install, start up, and operate
the device.
Never carry out work when voltage is present.
Establish connection correctly and ensure protection
against electric shock.
Cover termination area after installation in order to avoid
accidental contact with live parts (e. g., installation in
control cabinet).
Observe the national safety and accident prevention
regulations.
Assembly and electrical installation must correspond to
the state of the art.
The power supply is a built-in device and is designed for
mounting in a control cabinet.
The IP20 degree of protection of the device is intended
for use in a clean and dry environment.
Observe mechanical and thermal limits.
Horizontal mounting position (normal mounting
position)
Mount the power supply in the standard installation
position. Position of the connection terminals /L/N
below.
Ensure that the primary-side wiring and secondary-side
wiring are the correct size and have sufficient fuse
protection.
For the connection parameters for wiring the power
supply, such as the required stripping length with and
without ferrule, refer to the technical data section.
Use copper cables for operating temperatures of
75 °C (ambient temperature 55 °C)
90 °C (ambient temperature 75 °C).
The power supply is approved for the connection to TN,
TT and IT power grids (star networks) with a maximum
phase-to-phase voltage of 240 V AC
Protect the device against foreign bodies penetrating it,
e.g., paper clips or metal parts.
The power supply is maintenance-free. Repairs may
only be carried out by the manufacturer. The warranty
no longer applies if the housing is opened.
The power supply may only be used for its intended use.
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UNO2-PS/1AC/24DC/240W
6
High-voltage test (HIPOT)
This protection class II power supply is subject to the Low
Voltage Directive and is factory tested. During the HIPOT
test (high-voltage test), the insulation between the input
circuit and output circuit is tested for the prescribed electric
strength values, for example. The test voltage in the highvoltage range is applied at the input and output terminal
blocks of the power supply. The operating voltage used in
normal operation is a lot lower than the test voltage used.
inspection and testing, the following features must be
observed.
– The power supply wiring must be implemented as
shown in the wiring diagram.
– The maximum permissible test voltages must not be
exceeded.
Avoid unnecessary loading or damage to the power supply
due to excessive test voltages.
For the relevant applicable test voltages and
insulation distances, refer to the corresponding
table (see technical data: electric strength of the
insulation section).
High-voltage tests up to 1.1 kV DC can be
performed as described.
The test voltage should rise and fall in ramp form.
The relevant rise and fall time of the ramp should
be at least two seconds.
6.1
Figure 1
Potential-related wiring for the high-voltage
test
High-voltage dielectric test (dielectric strength
test)
3
UNO POWER
Ord.No.1096432
In order to protect the user, power supplies (as electric
components with a direct connection to potentially
hazardous voltages) are subject to more stringent safety
requirements. For this reason, permanent safe electrical
isolation between the hazardous input voltage and the
touch-proof output voltage as safety extra-low voltage
(SELV) must always be ensured.
3.1 3.2 2.1 2.2 2.3 2.4
13
+
24-28 V
HV
ó/=
6.3
High-voltage dielectric test performed by the
customer
Apart from routine and type tests to guarantee electrical
safety, the end user does not have to perform another highvoltage test on the power supply as an individual
component. According to EN 60204-1 (Safety of machinery
- Electrical equipment of machines) the power supply can be
disconnected during the high-voltage test and only installed
once the high-voltage test has been completed.
6.3.1
Input AC
100-240V
L N
1.1 1.2 1.3
High-voltage dielectric test during the
manufacturing process
During the power supply manufacturing process, a highvoltage test is performed as part of the dielectric test in
accordance with the specifications of IEC/UL/EN 61010-1.
The high-voltage test is performed with a test voltage of at
least 1.8 kV AC or higher. Routine manufacturing tests are
inspected regularly by a certification authority.
2
DC OK
In order to ensure permanent safe isolation of the AC input
circuit and DC output circuit, high-voltage testing is
performed as part of the safety approval process (type test)
and manufacturing (routine test).
6.2
+
14
Output DC
24V 240W
1
Key
No. Designation
1
2
3
Color coding
AC input circuit Red
High-voltage
-tester
DC output circuit Blue
Potential levels
Potential 1
-Potential 2
Performing high-voltage testing
If high-voltage testing of the control cabinet or the power
supply as a stand-alone component is planned during final
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PHOENIX CONTACT
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UNO2-PS/1AC/24DC/240W
Design
7.1
Rating plate
7.2
In accordance with the German Product Safety Law
(ProdSG) it is only permissible to make such products
available on the market if they meet certain safety
standards. It must be ensured at all times that users are not
exposed to hazards.
In accordance with ProdSG, every device must therefore be
fitted with a rating plate. All relevant information on the safe
use of the device must also be included.
The power supply device rating plate is located on
the right-hand side of the housing (as viewed from
the front).
Device connections are labeled with connection tags to
ensure clear and definitive identification.
The connection tags are split into the following connection
levels:
Connection
level
1.x
2.x
3.x
Figure 3
Description
Input
Output
Signal
Location of functional elements and device
connections
1
Rating plate information
UNO POWER
Figure 2
Device connections and functional elements
Ord.No.1096432
7
2
3.1 3.2 2.1 2.2 2.3 2.4
13
+
+
14
Output DC
24V 240W
3
24-28 V
DC OK
PHOENIX CONTACT GmbH & Co. KG
Flachsmarktstraße 8
32825 Blomberg, Germany
4
2
Type
Order No.:
7
1
Input:
Output:
Input AC
100-240V
3
L N
1.1 1.2 1.3
7
6
xxxxxxxXXYYWWTZZZZ
Read manual No. xxxxxxx before connecting to mains
Lire manuel No. xxxxxxx avant de raccorder au réseau
www.phoenixcontact.com
Made in Thailand
4
5
Key
No. Designation
1
Key
No.
1
2
3
4
5
6
7
109640_en_00
5
6
Designation
Identification of the provider
Product designation
Ambient conditions
Bar code and serial number for device identification
Designation of product-related device documentation
Device approvals
Device connection data
2
3
4
5
6
7
Connection terminal blocks, floating
switch contact (13/14), contact load
max. 30 V AC/DC, 100 mA
Connection terminal block output
voltage: Output DC +/Potentiometer output voltage
Signaling DC OK LED
Snap-on foot for DIN rail mounting
QR code web link
Connection terminal block input voltage: input /L/N
Connection
labeling
3.1, 3.2
2.1 ... 2.4
----1.1 ... 1.3
PHOENIX CONTACT
15/28
UNO2-PS/1AC/24DC/240W
7.3
Block diagram
Figure 4
Block diagram
Input AC
g
1.1
L
1.2
N
1.3
Output DC
2.1
Filter
2.2
aktive
PFC
2.3
2.4
Signal
Functions
UVP
+
Filter
OVP
3.1
13
3.2
14
User Interface
OTP
OCP
SCP
UOUT
DC OK
Key
Symbol
Designation – Input AC, Output DC
Input fuse, internal device protection
Symbol
EMC filter
Rectification
Power factor correction (PFC)
Switching transistor
Transmitter with electrical isolation
Smoothing capacitor
Symbol
Designation – Signal
Floating switch contact (13/14) for forwarding
the operational readiness to a superordinate
control system.
Symbol
Designation – User interface
Potentiometer for setting the output voltage
UOut
109640_en_00
Designation – Functions
Undervoltage protection protects the AC
input of the power supply against damage in
the event of an AC undervoltage.
Overvoltage protection protects the DC output of the power supply and the connected
load against damage in the event of an overvoltage
Overtemperature protection protects the
power supply against damage in the event of
impermissibly high intrinsic external heating.
Overcurrent protection protects the DC output of the power supply against damage in
the event of an impermissibly high current
load.
Short-circuit protection protects the DC output of the power supply against damage in
the vent of an output-side short circuit.
DC OK LED, indicates the operating status of
the power supply
PHOENIX CONTACT
16/28
UNO2-PS/1AC/24DC/240W
7.4
Device dimensions
Figure 5
Device dimensions (dimensions in mm)
UNO POWER
Ord.No.1096432
45
3.1 3.2 2.1 2.2 2.3 2.4
13
+
+
14
Output DC
24V 240W
24-28 V
DC OK
8
Mounting/remove
The fanless convection-cooled power supply can be
snapped onto 35 mm DIN rails with a top hat profile (TH 357.5 / TH 35-15) in accordance with EN 60715.
8.1
Convection
To ensure sufficient convection, a minimum clearance is
necessary between the power supply and above/below the
installed devices. The minimum clearances are rated based
on the standard mounting position with nominal power
supply operation (see section: Restricted areas).
130
Figure 7
Schematic diagram of the convection cooling
Input AC
100-240V
Device dimensions (dimensions in mm)
UNO POWER
Figure 6
Ord.No.1096432
L N
1.1 1.2 1.3
3.1
13
3.2
2.1
2.2
+
2.3
+
2.4
OU
24 TPU
V2 TD
40 C
W
14
24-2
8V
DC
INPU
100-T AC
240V
L
1.2
N
1.3
1.1
OK
109640_en_00
PHOENIX CONTACT
17/28
UNO2-PS/1AC/24DC/240W
The specified technical data for the power supply is based
on nominal operation in the standard mounting position. Any
different technical data based on deviating mounting
positions or other ambient conditions is labeled accordingly
(see section: Derating).
Keep-out areas
Figure 9
Device dimensions and minimum keep-out
areas (in mm)
45
Power supply installed in the normal mounting
position
UNO POWER
95
Figure 8
8.4
Ord.No.1096432
Mounting position
30
8.2
3.1 3.2 2.1 2.2 2.3 2.4
13
+
+
14
Output DC
24V 240W
DC OK
3.1
13
3.2
190
UNO POWER
Ord.No.1096432
24-28 V
2.1
2.2
+
2.3
+
2.4
OU
24 TPU
V2 TD
40 C
W
14
24-2
8V
DC
OK
Input AC
100-240V
L N
1.1 1.2 1.3
1.1
8.3
INPU
100-T AC
240V
L
1.2 N
1.3
Installation height
You can operate the power supply without power limitations
up to an installation altitude of 2000 m. For altitudes higher
than 2000 m, different specifications apply due to the
differing air pressure and the reduced convection cooling
associated with this (see section: Derating).
8.5
Mounting the power supply unit
Proceed as follows to mount the power supply:
1. In the standard mounting position, the power supply is
mounted on the DIN rail from above. When doing so,
ensure that the snap-on foot engages correctly behind
the DIN rail (A).
2. Then press the power supply down until the snap-on
foot audibly latches into place (B).
3. Check that the power supply is securely attached to the
DIN rail.
Figure 10
Snapping the power supply onto the DIN rail
109640_en_00
PHOENIX CONTACT
18/28
UNO2-PS/1AC/24DC/240W
8.6
Removing the power supply unit
Proceed as follows to remove the power supply:
1. Take a suitable screwdriver and insert this into the latch
opening on the snap-on foot (A).
2. Release the lock by lifting the screwdriver (B).
3. Carefully swivel the power supply forward (C) so that
the lock slides back into the starting position.
4. Then separate the power supply from the DIN rail (D).
Figure 11
Removing the power supply from the DIN rail
Device connection terminal blocks
The AC input, DC output, and signal terminal blocks on the
front of the power supply feature screw connection
technology.
For the necessary connection parameters for the
connection terminal blocks, refer to the technical
data section.
9.1
AC input terminal blocks
The power supply is designed such that it can be operated
on single-phase AC supply systems or on two phase
conductors of three-phase systems. Here, the star supply
system supports various supply system configurations,
for example TT, TN, and IT systems.
9
The power supply is connected on the primary side via the
Input AC connection terminal blocks (connection level 1.x,
input).
The power supply is approved for connection to
TN, TT, and IT power grids with a maximum
phase-to-phase voltage of 240 V AC.
Position of the AC input terminal blocks
UNO POWER
Ord.No.1096432
Figure 12
3.1
13
3.2
2.1
2.2
+
2.3
+
2.4
OU
24 TPU
V2 TD
40 C
W
14
24-2
8V
DC
1.1
109640_en_00
OK
Input AC
100-240V
INPU
100-T AC
240V
L
1.2 N
1.3
PHOENIX CONTACT
19/28
UNO2-PS/1AC/24DC/240W
9.2
Protection of the primary side
The installation of the power supply must conform to the
regulations of EN 61010. It must be possible to switch the
power supply off using a suitable disconnection device
outside of the power supply. The line protection on the
primary side is suitable for this (see section: Technical data).
9.2.1
Fuse protection in a single-phase supply
system
Figure 13
Schematic diagram, single-phase fuse
protection
9.3
Supply system configurations and systems
9.3.1
Connection versions, single-phase supply
system
The power supply is designed such that it can also be
operated on two phase conductors of three-phase systems.
Figure 15
9.3.2
Fuse protection in a three-phase supply system
Schematic diagram, two-phase fuse protection
Connection versions, three-phase supply
system
Figure 16
Wiring principle in a star supply system, twophase operation
109640_en_00
When operating the power supply on a threephase system, observe the maximum permissible
phase-to-phase voltage (see section: Technical
data).
The primary-side fuse protection in two-phase
operation must be cover all poles.
DANGER: Hazardous voltage
DANGER: Hazardous voltage
Figure 14
9.2.2
Wiring principle in a star supply system, singlephase operation
PHOENIX CONTACT
20/28
UNO2-PS/1AC/24DC/240W
9.4
DC output terminal blocks
Connect the DC load to be supplied to the Output DC
connection terminal blocks (connection level 2.x, output). By
default, the power supply is preset to a nominal output
voltage of 24 V DC. To compensate for a line-related
voltage drop over long distances between the power supply
and the DC load, you can adjust the DC output voltage using
the potentiometer (see section: Potentiometer).
Figure 17
9.4.2
Protection of the secondary side
The power supply is electronically short-circuit-proof and
no-load-proof. In the event of an error, the output voltage is
limited
If sufficiently long connecting cables are used,
fuse protection does not have to be provided for
each individual load.
Position of DC output terminals
9.5
Connection terminal blocks, floating switch
contact (13/14)
There is a floating switch contact on the Output DC
connection terminal blocks (connection level 3.x, signal) for
forwarding to a superordinate control system.
3.1 3.2 2.1 2.2 2.3 2.4
UNO POWER
Ord.No.1096432
13
3.1
13
+
NOTE: Damage due to impermissibly high
contact load
+
14
Output DC
24V 240W
Observe the contact connection data: Max.
30 V AC/DC, 100 mA
3.2
2.1
2.2
+
2.3
+
2.4
OU
24 TPU
V2 TD
40 C
W
14
Figure 19
24-2
8V
DC
1.1
OK
Position of the connection terminal blocks,
floating switch contact
INPU
100-T AC
240V
L
1.2 N
1.3
3.1 3.2 2.1 2.2 2.3 2.4
9.4.1
UNO POWER
Ord.No.1096432
13
Wiring principle for DC output terminals
3.1
13
3.2
2.1
2.2
+
2.3
+
2.4
OU
24 TPU
V2 TD
40 C
W
24-2
8V
DC
Wiring principle for DC output terminal blocks
1.1
R
Load
9.5.1
3.1 3.2 2.1 2.2 2.3 2.4
13
14
+
+
14
The power supply has two separate connection terminal
blocks with positive and negative potentials for supplying
DC loads. Connect the DC loads to be supplied to these
connection terminal blocks.
Figure 18
+
14
Output DC
24V 240W
OK
INPU
100-T AC
240V
L
1.2 N
1.3
Wiring principle for the floating switch contact
Figure 20
+
Wiring principle, floating switch contact for
forwarding to a superordinate control system
Output DC
24V 240W
109640_en_00
PHOENIX CONTACT
21/28
UNO2-PS/1AC/24DC/240W
10
Function elements
The functional elements of the power supply, with the
exception of the floating switch contact, are situated on the
front of the housing of the power supply and are categorized
as follows:
– Operating element
– Display element
– Control element
10.1
Operating element – potentiometer UOut
The power supply is operated via a stepless potentiometer
on the device front. You can use the potentiometer to set the
necessary output voltage for supplying the DC load. The
axis of the potentiometer has a groove that is marked with an
arrow. Turning the potentiometer clockwise increases the
output voltage. Turning the potentiometer counterclockwise decreases the output voltage. The angle of
rotation of the potentiometer setting range (UOut min to UOut
max) is approx. 270°.
NOTE: Damage possible, beware of the
potentiometer setting range end stops
The potentiometer setting range is limited via end
stops. Accidentally over-torqueing the end stops
can damage the potentiometer.
Figure 21
Potentiometer
10.2
Display element – DC OK LED
A DC OK LED is available for preventive function monitoring
of the power supply. Through various different signals, the
DC OK LED provides information on the operating status of
the power supply.
DC OK LED
Description
Primary-side AC supply is not available
or too low.
Power supply in normal operation UOUT
>0.9 x UN (UN = 24 V DC)
Power supply in Overload operation
UOUT
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