2907379

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Technical content

© PHOENIX CONTACT Data sheet 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 –D C OK LED – Floating switch contact Technical data (short form) Input voltage range 100 V AC ... 240 V AC -15 % ... +10 % Mains buffering typ. 17 ms (120 V AC) typ. 18 ms (230 V AC) Nominal output voltage (UN) 24 V DC Setting range of the output voltage (USet) 24 V DC ... 28 V DC Nominal output current (IN) 20 A Output power (PN) 480 W Efficiency (for nominal values) typ. 93 % (120 V AC) typ. 94.6 % (230 V AC) Residual ripple typ. 70 mVPP MTBF (IEC 61709, SN 29500) > 900000 h (25 °C) > 530000 h (40 °C) > 280000 h (55 °C) Ambient temperature (operation) -25 °C ... 70 °C > 55 °C Derating: 2.5 %/K Dimensions W/H/D 59 mm / 130 mm / 125 mm Weight 1 kg All technical specifications are nominal and refer to a room temperature of 25 °C and 70% relative humidity at 100 m above sea level. 107888_en_00 2020-02-14

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107888_en_00 PHOENIX CONTACT 4 / 28 Description Ty pe Order No. Pcs./Pkt. Primary-switched UNO power supply for DIN rail mounting, input: single-phase, output: 24 V DC/480 W UNO2-PS/1AC/24DC/480W 2910105 1 3O r d e r i n g d a t a Accessories Ty pe Order No. Pcs./Pkt. DIN rail diode module 12-24 V DC/2x20 A or 1x40 A. Uniform redundancy up to the consumer. QUINT4-DIODE/12-24DC/ 2X20/1X40 2907719 1 Active QUINT redundancy module for DIN rail mounting with ACB (Auto Current Balancing) Technology and 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 QUINT-ORING/24DC/2X20/ 1X40 2320186 1 Redundancy module, TRIO POWER, Push-in connection, DIN rail mounting, TRIO2-DIODE/12-24DC/ 2X20/1X40 2907379 1 Pluggable device protection, according to type 3/class III, 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. PLT-SEC-T3-230-FM 2905229 1 Electronic device 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 Electronic device circuit breaker, number of positions: 1, mounting type: DIN rail: 35 mm, Color: light grey RAL 7035 CBMC E4 24DC/1-10A NO 2906032 1 Electronic device 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 Electronic device circuit breaker, number of positions: 1, mounting type: DIN rail: 35 mm, Color: light grey RAL 7035 CBMC E4 24DC/1-10A IOL 2910411 1 Electronic device 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 Electronic device circuit breaker, number of positions: 1, mounting type: DIN rail: 35 mm, Color: light grey RAL 7035 CBM E8 24DC/0.5-10A NO-R 2905744 1 The range of accessories is being continuously extended. The current range of accessories can be found in the download area for the product.

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4 Technical data

Unless otherwise stated, all data applies for 25°C ambient temperature, 230 V AC input voltage, and nominal output current (IN). Derating < 90 V AC 1 %/V Frequency range (fN) 50 Hz ... 60 Hz 10 % Current draw typ. 5.4 A (100 V AC)

4.4 A (120 V AC)

2.3 A (230 V AC)

2.2 A (240 V AC)

Discharge current to PE < 3.5 mA Mains buffering typ. 17 ms (120 V AC) typ. 18 ms (230 V AC) Typical response time < 1 s Protective circuit Transient protecti on Varistor, gas-filled surge arrester Inrush current limitation at 25 °C < 15 A Inrush current integral (I2t) < 1 A 2s Input fuse fast blow, internal 8 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 Circuit breaker Neozed fuse or equivalent Power switch Characteristics A B C D K gG ≤ 13 x IIn (maximum magnetic tripping)

4 A -----  -

6 A - - - - -  -

107888_en_00 PHOENIX CONTACT 6 / 28 Electric strength of the insulation A B C D Typtest (IEC/EN 61010-1:2010, Kapitel 6.8) 3 kV AC 1.5 kV AC -- -- Production test 2.5 kV AC 2.2 kV AC 0.5 kV AC 0.5 kV AC Field test (with gas-filled surge arrester) 1.1 kV AC 1.1 kV AC -- 1.1 kV AC Housing Output 2.2 2.1 + 2.3 2.4 PE 1.1 Input L 1.2 N 1.3 Signaling 3.1 13 3.2 14 B A D C POWER factor 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0 1,1 024681 0 1 2 1 4 1 6 1 8 2 0 /UNIf51f /UNIf51e = U : 120V AC/U : 24 V DCIn Out = U : 230V AC/U : 24 V DCIn Out /UNIf51e /UNIf51f Power Factor I [A]Out Crest factor 120 V AC 230 V AC typ. 1.67 typ. 1,75 Input current vs. output current = U : 120 V AC/U : 24 V DCIn Out = U : 230 V AC/U : 24 V DCIn Out /UNIf51e /UNIf51f /UNIf51e /UNIf51f 0,0 0,5 1,5 2,5 3,5 4,5 I [A]In 0 2468 1 0 1 2 1 4 1 6 1 8 2 0 I [A]Out

107888_en_00 PHOENIX CONTACT 7 / 28 Input connection data Connection method Screw connection Conductor cross section, solid 0.2 mm² ... 6 mm² Conductor cross section, flexible 0.2 mm² ... 4 mm² Conductor cross section flexible, with ferrule with plastic sleeve 0.25 mm² ... 4 mm² Conductor cross section flexible, with ferrule without plastic sleeve 0.25 mm² ... 4 mm² Conductor cross section AWG 24 ... 10 Stripping length 8 mm Output data Nominal output voltage (UN)2 4 V DC Setting range of the output voltage (USet) (constant capacity) 24 V DC ... 28 V DC Nominal output current (IN)2 0 A Control deviation change in load, static 10 % ... 90 % < 1 % Control deviation change in load, dynamic 10 % ... 90 % < 3 % Control deviation change in input voltage ±10 % < 0.1 % Short-circuit-proof yes No-load proof yes Residual ripple (with nominal values) typ. 70 mV PP Connection in parallel Yes, for increased capacity and redundancy Connection in series Yes, for increased capacity Feedback voltage resistance ≤ 35 V DC Protection against overvoltage at the output (OVP) ≤ 35 V DC Rise time typical < 1 s (UOut = 10 % ... 90 %) Output connection data Connection method Screw connection Conductor cross section, solid 0.2 mm² ... 6 mm² Conductor cross section, flexible 0.2 mm² ... 4 mm² Conductor cross section flexible, with ferrule with plastic sleeve 0.25 mm² ... 4 mm² Conductor cross section flexible, with ferrule without plastic sleeve 0.25 mm² ... 4 mm² Conductor cross section AWG 24 ... 10 Stripping length 8 mm LED signaling UOut > 0,9 x UN (UN = 24 V DC) LED lights up green UOut < 0,9 x UN (UN = 24 V DC) LED flashes green

107888_en_00 PHOENIX CONTACT 8 / 28 Signal contact Switch contact Function N/O contact Default closed (U Out > 0,9 UN) Maximum contact load 30 V AC/DC 100 mA Signal connection data Connection method Screw connection Conductor cross section, solid 0.2 mm² ... 6 mm² Conductor cross section, flexible 0.2 mm² ... 4 mm² Conductor cross section flexible, with ferrule with plastic sleeve 0.25 mm² ... 4 mm² Conductor cross section flexible, with ferrule without plastic sleeve 0.25 mm² ... 4 mm² Conductor cross section AWG 24 ... 10 Stripping length 8 mm Reliability 230 V AC MTBF (IEC 61709, SN 29500) > 900000 h (25 °C) > 530000 h (40 °C) > 280000 h (55 °C) General data Degree of protection IP20 Protection class I Inflammability class in acc. with UL 94 (housing / terminal blocks) V0 Side element version Aluminum Hood version Stainless steel Dimensions W / H / D (state of delivery) 59 mm / 130 mm / 125 mm Weight 1 kg Power dissipation 120 V AC 230 V AC Maximum power dissipation in no-load condition < 2.9 W < 3 W Power loss nominal load max. < 37 W < 28 W Efficiency 120 V AC 230 V AC typ. 93 % typ. 94.6 % = U : 120 V AC/U : 24 V DCIn Out = U : 230 V AC/U : 24 V DCIn Out /UNIf51e /UNIf51f /UNIf51e /UNIf51f I [A] Out Eta [%] 02468 1 0 1 2 1 4 1 6 1 8 2 0 2 2

107888_en_00 PHOENIX CONTACT 9 / 28 Ambient conditions Ambient temperature (operation) -25 °C . .. 70 °C (> 55 °C Derating: 2.5 %/K) The ambient temperature (operation) refers to IEC 61010 surrounding air temperature. Ambient temperature (storage/transport) -40 °C ... 85 °C Max. permissible relative humidity (operation) ≤ 95 % (at 25 °C, non-condensing) Installation height ≤ 3000 m (> 2000 m, Derating: 10 %/1000 m) Vibration (operation) 10 Hz ... 50 Hz, Amplitude ±0.2 mm (according to IEC 60068-2-6) 50 Hz ... 150 Hz, 2,3g, 90 min. Shock 18 ms, 30g, in each space direction (according to IEC 60068- 2-27) Degree of pollution 2 Climatic class 3K3 (in acc. with EN 60721) Overvoltage category EN 61010-1 EN 62477-1 II (≤ 3000 m) III (≤3000 m) Standards Safety of power supply units up to 1100 V (insulation distances) DIN EN 61558-2-16 Electrical safety (of information technology equipment) IEC 61010-2-201 (SELV) Electrical safety (of control and regulation devices) IEC 61010-1 Electronic equipment for use in electrical power installations EN 50178/VDE 0160 (PELV) SELV IEC 61010-1 (SELV) IEC 61010-2-201 (PELV) Safe isolation IEC 61558-2-16 IEC 61010-2-201 Limitation of mains harmonic currents EN 61000-3-2 Network version/undervoltage SEMI F47 - 0706 (185 V AC) Approvals UL UL/C-UL Listed UL 61010-1 UL/C-UL Listed UL 61010-2-201 SIQ CB-Scheme (IEC 61010-1, IEC 61010-2-201) Current approvals/permissions for the product can be found in the download area under phoenixcontact.net/products

107888_en_00 PHOENIX CONTACT 10 / 28 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 Minimum normative requirements Higher requirements in practice (covered) Conducted noise emission EN 55016 EN 61000-6-4 (Class A) EN 61000-6-3 (Class B) Noise emission EN 55016 EN 61000-6-4 (Class A) EN 61000-6-3 (Class B) Harmonic currents EN 61000-3-2 EN 61000-3-2 EN 61000-3-2 (Class A) EN 61000-6-2:2005 CE basic standard Minimum normative require- ments of EN 61000-6-2 (CE) (immunity for industrial envi- ronments) Higher requirements in practice (covered) Electrostatic discharge EN 61000-4-2 Housing contact discharge 4 kV (Test Level 2) 6 kV (Test Level 3) Housing air discharge 8 kV (Test Level 3) 8 kV (Test Level 3) Comments Criterion B Criterion A Electromagnetic HF field EN 61000-4-3 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) Test field strength 1 V/m (Test Level 1) 10 V/m (Test Level 3) Comments Criterion A Criterion A Fast transients (burst) EN 61000-4-4 Input 2 kV (Test Level 3 - asymmetrical) 4 kV (Test Level 4 - asymmetrical) Output 2 kV (Test Level 3 - asymmetrical) 2 kV (Test Level 3 - asymmetrical) Comments Criterion B Criterion A Surge voltage load (surge) EN 61000-4-5 Input 1 kV (Test Level 2 - symmetrical) 2 kV (Test Level 3 - asymmetrical) 2 kV (Test Level 3 - symmetrical) 4 kV (Test Level 4 - asymmetrical) Output 0.5 kV (Test Level 1 - symmetrical) 0.5 kV (Test Level 1 - asymmetrical) 1 kV (Test Level 2 - symmetrical) 2 kV (Test Level 3 - asymmetrical) Comments Criterion B Criterion A Conducted interference EN 61000-4-6 Input/output asymmetrical asymmetrical Voltage 10 V (Test Level 3) 10 V (Test Level 3) Comments Criterion A Criterion A

107888_en_00 PHOENIX CONTACT 11 / 28 Voltage dips EN 61000-4-11 Input voltage (230 V AC , 50 Hz) Voltage dip 70 % , 25 periods (Test Level 2) 70 % , 25 / 30 periods (Test Level 2) Comments Criterion A Criterion A Voltage dip 40 % , 10 periods (Test Level 2) 40 % , 12 periods (Test Level 2) Comments Criterion A Criterion A Voltage dip 0 % , 1 period (Test Level 2) 0 % , 1 period (Test Level 2) Comments Criterion B Criterion B EN 61000-6-2:2005 CE basic standard Minimum normative require- ments of EN 61000-6-2 (CE) (immunity for industrial envi- ronments) Higher requirements in practice (covered) Key Criterion A Normal operating behavi or within the specified limits. Criterion B Temporary impairment to operational behavior that is corrected by the device itself.

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5 Safety and installation notes

Instructions and possible hazards are indicated by corresponding symbols in this document. There are different categories of personal injury that are indicated by a signal word. The following symbols are used to indicate potential damage, malfunctions, or more detailed sources of information. Safety notes and warning instructions – 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 in stallation 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 inst allation 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 unit in the standard installation position. Position of the L/N connection terminal blocks at bottom. – 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. 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. WARNING 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. 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. WARNING: Danger to life by electric shock! NOTE

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6 High-voltage test (HIPOT)

This protection class I 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 high- voltage 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.

6.1 High-voltage dielectric test (dielectric strength

test) 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. 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 High-voltage dielectric test during the

During the power supply manufacturing process, a high- voltage 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 2.2 kV AC or higher. Routine manufacturing tests are inspected regularly by a certification authority.

6.3 High-voltage dielectric test performed by the

Apart from routine and type tests to guarantee electrical safety, the end user does not have to perform another high- voltage 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 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 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. Figure 1 Potential-related wi ring for the high-voltage test Key High-voltage tests 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. For the relevant applicable test voltages and insulation distances, refer to the corresponding table (see technical data: electric strength of the insulation section). No. Designation Color coding Potential lev- els

1 AC input circuit Red Potential 1

2 High-voltage

-- --

3 DC output circuit Blue Potential 2

++13 14 Output DC 24V 480W 24-28 V UNO2 POWER Ord.No. 2910105 1.1 1.2 1.3 L N Input AC 100-240V HV /UNIf0bb/=

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7.1 Rating plate

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. Figure 2 Rating plate information Key

7.2 Device connections an d functional elements

Device connections are labeled with connection tags to ensure clear and definitive identification. The connection tags are split into the following connection levels: Figure 3 Location of functional elements and device connections Key The power supply device rating plate is located on the right-hand side of the housing (as viewed from the front). No. Designation

1 Identification of the provider

2 Product designation

3 Ambient conditions

4 Bar code and serial number for device identi-

5 Designation of product-related device docu-

6 Device approvals

7 Device connection data

PHOENIX CONTACT GmbH & Co. KG Flachsmarktstraße 8

32825 Blomberg, Germany

Read manual No. xxxxxxx before connecting to mains Lire manuel No. xxxxxxx avant de raccorder au réseau www.phoenixcontact.com Made in Thailand Input: Output: Ty p e Order No.: xxxxxxxXXYYWWTZZZZ Connection level

Description

1.x Input 2.x Output 3.x Signal No. Designation Connection labeling

1 Connection terminal blocks, floating

switch contact (13/14), contact load max. 30 V AC/DC, 100 mA 3.1, 3.2

2 Connection terminal block output

voltage: Output DC +/-

3 Potentiometer output voltage --

4 Signaling DC OK LED --

5 Snap-on foot for DIN rail mounting --

6 QR code web link --

7 Connection terminal block input volt-

age: Input /L/N DC OK 13 14 Output DC 24V 480W 24-28 VUNO PO WER Or d.No. 2910105 Input AC 100-240V 1.1 1.2 1.3 LN

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7.3 Block diagram

L 1.2 1.3 1.1 2.1 2.2 2.3 2.4 3.1 3.2 N Input AC Output DC User Interface Signal Functions UOUT DC OK Filter aktive PFC Filter SCPOCPOTPOVPUVP Symbol Designation – Input AC, Output DC Input fuse, internal device protection EMC filter Rectification Power factor correction (PFC) Switching transistor Transmitter with electrical isolation Smoothing capacitor Filter aktive PFC Symbol 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 out- put of the power supply and the connected load against damage in the event of an over- voltage Overtemperature protection protects the power supply against damage in the event of impermissibly high intrinsic external heating. Overcurrent protection protects the DC out- put of the power supply against damage in the event of an impermissibly high current load. Short-circuit protection protects the DC out- put of the power supply against damage in the vent of an output-side short circuit. 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 DC OK LED, indicates the operating status of the power supply UVP OVP OTP OCP SCP UOUT DC OK

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7.4 Device dimensions

Figure 5 Device dimensions (dimensions in mm) Figure 6 Device dimensions (dimensions in mm) 8M o u n t i n g / r e m o v e The fanless convection-cooled power supply can be snapped onto 35 mm DIN rails with a top hat profile (TH 35- 7.5 / 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). Figure 7 Schematic diagram of the convection cooling 130 DC OK ++13 14 Output DC 24V 480W 24-28 V UNO2 PO WER Or d.No. 2910105 1.1 1.2 1.3 L N Input AC 100-240V 130 125 130 3.1 3 2.1 2.2 2.3 2.4 14 ++ - - Output DC 24V 480 W 24-28V DC OK INPUT AC100-240V 1.1 1.2 1.3 L N UN O2 PO W ER O rd.No . 2910105

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8.2 Mounting position

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). Figure 8 Power supply installed in the normal mounting position

8.3 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).

8.4 Keep-out areas

Figure 9 Device dimensions and minimum keep-out areas (in mm)

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 supp ly 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 3.1 3 2.1 2.2 2.3 2.4 14 ++ - - Output DC24V 480W 24-28V DC OK INPUT AC100-240V1.1 1.2 1.3 L N UNO2 POWER Ord.No. 2910105 190 DC OK 13 14 Output DC 24V 480W 24-28 VUNO PO WER Or d.No. 2910105 Input AC 100-240V 1.1 1.2 1.3 LN Click B A

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8.6 Removing the power supply unit

Proceed as follows to remove the power supply: 1. Take a suitable screwdriver an d 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

9 Device connection terminal blocks

The AC input, DC output, and signal terminal blocks on the front of the power supply feature screw connection technology.

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. The power supply is connected on the primary side via the Input AC connection terminal blocks (connection level 1.x, input). Figure 12 Position of the AC input terminal blocks C D BA For the necessary connection parameters for the connection terminal blocks, refer to the technical data section. 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. 3.1 3.2 2.1 2.2 2.3 2.4 14 ++ - - Output D C24V 480W 24-28V DC OK INPUT AC100-240V 1.1 1.1 1.1 L N

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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

Figure 13 Schematic diagram, single-phase fuse protection

9.2.2 Fuse protection in a three-phase supply system

Figure 14 Schematic diagram, two-phase fuse protection

9.3 Supply system configurations and systems

9.3.1 Connection versions, single-phase supply

The power supply is designed such that it can also be operated on two phase conductors of three-phase systems. Figure 15 Wiring principle in a star supply system, single- phase operation

9.3.2 Connection versions, three-phase supply

Figure 16 Wiring principle in a star supply system, two- phase operation DANGER: Hazardous voltage The primary-side fuse protection in two-phase operation must be cover all poles. Input AC LN 1.31.21.1 N PE Input AC LN 1.31.21.1 N PE DANGER: Hazardous voltage When operating the power supply on a three- phase system, observe the maximum permissible phase-to-phase voltage (see section: Technical data). TT / TN / IT (PE) TN-C Input AC Input AC LN LN N PE L1 L1 L2 L2 L3 L3 N PE PEN TT / TN / IT (PE) TN-C Input AC Input AC LN LN L1 L1 L2 L2 L3 L3 N PE PEN N PE

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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 Position of DC output terminals

9.4.1 Wiring principle for DC output terminals

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 Wiring principle for DC output terminal blocks

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

9.5 Connection terminal bl ocks, 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. Figure 19 Position of the connection terminal blocks, floating switch contact 3.1 3.2 2.1 2.2 2.3 2.4 14 ++ - - Outpu t DC24V 480W 24-28V DC OK INPUT AC100-24 0V1.1 1.1 1.1 L N ++13 14 Output DC 24V 480W LoadR If sufficiently long connecting cables are used, fuse protection does not have to be provided for each individual load. NOTE: Damage due to impermissibly high contact load Observe the contact connection data: Max.

30 V AC/DC, 100 mA

3.1 3.2 2.1 2.2 2.3 2.4 14 ++ - - Output D C24V 480 W 24-28V DC OK INPUT AC100-240V 1.1 1.1 1.1 L N

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9.5.1 Wiring principle for the floating switch contact

Figure 20 Wiring principle, floating switch contact for forwarding to a superordinate control system

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 U Out

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 counter- clockwise decreases the output voltage. The angle of rotation of the potentiometer setting range (U Out min to UOut max) is approx. 270°. 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. The possible DC OK statuses are to be found in the following table: 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.  = off,  = on (green),  = flashing (green) Figure 22 DC OK LED

10.3 Control element – floa ting switch contact (13/

14) A floating switch contact is available for preventive function monitoring of the power supply. The function of the switch contact is assigned to a fixed event. Changing the switch function is not possible. Process-affecting signals and resistive loads will be switched without limitation. For heavily inductive loads (e.g. a relay), a suitable protective circuit (e.g. a freewheeling diode) is necessary. The possible switch contact statuses are to be found in the following table: 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. 1413 3.1 3.23.1 max. 30 V AC/DC 100 mA PLC Digital Input x DI GND 24-28 V 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 <0.9 x UN (UN = 24 V DC) Contact 13/14 Description open Power supply in Overload operation UOUT <0.9 x UN (UN = 24 V DC) closed Power supply in normal operation U OUT >0.9 x UN (UN = 24 V DC) DC OK

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11 Output characteristic curves

In normal operation, the power supply supplies the output power in accordance with the device nominal data. If the DC output current supplying the loads increases to an impermissibly high level due to a fault, the power supply disconnects the DC output. The power supply remains in operation, despite the functional disturbance. The DC OK LED flashes to signal a functional disturbance, and the floating switch contact opens at the same time (see section: Functional elements). In HICCUP mode, the power supply attempts to return to the conditions present prior to the detected current increase cyclically. This procedure is repeated until the cause of the current increase due to overload or short circuit has been remedied. The power supply then automatically switches back to normal operation. The disturbance signal is withdrawn. Figure 23 Schematic diagram, HICCUP mode in the event of overload

12 Connection versions

Depending on how you intend to use your power supply, there are different ways of connecting the DC output side. A distinction is made between the following modes of use: – Power increase – Redundancy operation

12.1 Increasing power

Depending on the respective mode of use, the power is increased either via the series- or parallel connection of two power supplies.

12.1.1 Series operation

To increase the DC output power in dependence of the output voltage, connect two power supplies in series operation. Only use power supplies of the same type and performance class with identical configurations. Depending on the common output-side ground reference point of the power supplies, the following DC output voltage potentials are possible: –+ 4 8 V DC –- 4 8 V DC –± 2 4 V DC Figure 24 Schematic diagram, power increase in series operation U Out [V] IOut [A] UN 0 IN 180ms180ms180ms OutI [A] I 0 t[s] 10s Output DC Output DC +48 V DC LoadR + + Output DC Output DC -48 V DC LoadR + + Output DC Output DC -24 V DC LoadR +24 V DC LoadR + +

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12.1.2 Parallel operation

When n power supply DC outputs are connected in parallel, the output current is increased to n x IN. Parallel connection for increased power is used when extending existing systems. If the individual power supply does not cover the current consumption of the most powerful load, parallel connection of power supplies is recommended. Figure 25 Schematic diagram, power increase in parallel operation

12.2 Redundant operation

Redundant circuits are suitable for the DC supply of systems and system parts which place particularly high demands on operational safety. If the DC load is to be supplied with 1+1 redundancy, two power supplies of the same type and performance class with identical configurations must be used. In the event of an error, it must be ensured that one of the power supplies is able to provide the total required output power for the DC load to be supplied. The output power required for normal operation is thus provided by two power supplies connected in parallel on the output side. In normal operation, each of the two power supplies will be utilized by up to 50%. Figure 26 Schematic diagram, 1+1 redundancy with redundancy module (active or passive)

12.3 Fundamental prereq uisites for parallel

operation (power increase, redundancy operation) In order to ensure correct parallel operation, observe the following rules: DC output voltage: On each of the power supplies, set the DC voltage in idle mode such that the voltage values are identical. Take any voltage drops occurring due to long cable lengths into consideration. Cable lengths: To ensure the symmetrical utilization of he power supplies, the connecting cables for supplying the DC load must be identical in length. Cable cross sections: The connecting cables for supplying the DC load must be rated for the maximum occurring total current of all power supplies. This also applies for redundancy operation, whereby the individual power supply only supplies 50% of the DC load. Ambient conditions: Select the installation location of the power supplies such that the prevailing ambient conditions are identical. This is of particular importance if the power supplies are installed in different mounting locations. Large temperature differences between the mounting locations have a negative effect on the operating points of the power supplies. This will result in the operating behavior of the power supplies no longer being identical. A suitable selection of redundancy modules (active or passive) is to be found in the section: Ordering data, Accessories. LoadR Output DC Output DC + + LoadR Output DC Output DC + + If more than two power supplies are connected in parallel for the required power increase, fusing te DC outputs separately is recommended. Use appropriate miniature circuit breakers (MCBs) for this. As an alternative, the DC outputs can be decoupled from one another using redundancy modules (active or passive).

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13 Derating

13.1 Ambient temperature

When mounted in the standard mounting position and operated within the permissible temperature range for nominal operation, the power supply provides full output power. If the power supply is operated beyond the temperature range for nominal values, note the reduced output power for the supply of DC loads. Figure 27 Output power depending on the ambient temperature

13.2 Installation height

The power supply can be operated at an installation height of up to 2000 m without any limitations. Different data applies for installation locations above 2000 m due to the differing air pressure and the reduced convection cooling associated with this. Figure 28 Output power depend ing on the installation height NOTE: Damage due to thermal overload If the power supply is operated in a different temperature range, only a reduced amount of power can be drawn. Otherwise, the power supply will be thermally loaded disproportionately and the device service life significantly reduced. This thermal load may even damage the power supply such that it is no longer operational. 55 70-25 P 62.5% 100% T [°C]A PW Out N >55°C Derating: 2.5%/K H [m] [%] 100 110 120 P Out PN 100 % °C55/UNIf0a3 0 1000 2000 3000 4000 5000

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13.3 Position-dependent derating

In order that you can use the nominal power of the power supply without limitation, the power supply should always be mounted in the standard mounting position. Sufficient device-side convection is always assured if the power supply is mounted in the standard mounting position and the necessary restricted areas are observed.

13.3.1 Normal mounting position

13.3.2 Rotated mounting position 90° Z-axis

NOTE: Damage due to thermal overload If the supply is mounted in a different mounting position, only a reduced amount of power can be drawn. Otherwise, the power supply will be thermally loaded disproportionately and the device service life significantly reduced. 3.1 3.2 2.1 2.2 2.3 2.4 14 ++ - - Output D C24V 480W 24-28 V DC OK INPUT AC100-240V1.1 1.2 1.3 L N UNO 2 PO W ER O rd.No . 2910105 Z X Y IN -25 [A] [°C] 100% 62,5% 55 70 3.1 3.2 2.1 2.2 2.3 2.4 ++ - - O utp ut D C 24V 4 80W 24-2 DC O K IN PUT A C 100-2 40V L N 1.1 1.1 1.1 UNO2 PO WER Or d.No. 2910105 Z X Y IN -25 [A] [°C] 100% 12,5% 35 70

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13.3.3 Rotated mounting position 180° Z-axis

13.3.4 Rotated mounting position 270° Z-axis

1.1 1.2 1.3 L N Input AC 100-240V DC OK 3.1 3.2 2.1 2.2 2.3

2.4 Output

UNO2 POWER Ord.No . 291 10105 Z X Y IN -25 [A] [°C] 100% 25% 40 70 DC OK++ 13 143.13.1 3.2 2.1 2.2 2.3 2.4 Outp utDC 24V 80W 24-2 1.1 1.2 1.3 L N Input AC100-240VUNO2 POWER Ord.No. 29110105 Z X Y IN -25 [A] [°C] 100% 30 70

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13.3.5 Rotated mounting position 90° X-axis

13.3.6 Rotated mounting position 270° X-axis

3.1 3.2 2.1 2.2 2.3 2.4 24-28 V 1.1 1.2 1.3 L N Input AC 100-240V DC OK UNO2 POWER O rd.No.29110105 Y Z X IN -25 [A] [°C] 100% 25% 40 70 Y Z X IN -25 [A] [°C] 100% 12,5% 35 70

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14 Disposal and recycling

Ensure the correct disposal of electronic components Do not dispose of the power supply as household waste. Observe the applicable national standards and regulations. Ensure correct disposal or recycling Dispose of or recycle packaging material that is no longer needed as household waste. Observe the applicable national standards and regulations.