ABB Power supply CP-E 24/20.0 Data Sheet

2CDC 271 027 F0008

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햲 OUTPUT L+, L+, L-, L-:

terminals - output

햳 INPUT L, N, PE:

terminals - input

햴 13-14: terminals -

signalling contact

Power supply CP-E 24/20.0

Primary switch mode power supply Data sheet

Features

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Rated output voltage 24 V DC

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Output voltage adjustable via front-face rotary potentiometer “OUTPUT Adj”

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Rated output current 20 A

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Rated output power 480 W

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Wide range input 115-230 V AC (90-264 V AC, 120-370 V DC)

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Typical efﬁ ciency of 89 %

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Low power dissipation and low heating

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Free convection cooling (no forced cooling with ventilators)

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Ambient temperature range during operation -25...+70 °C

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Open-circuit, overload and short-circuit stable

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Integrated input fuse

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Redundancy unit CP-A RU offering true redundancy, available as accessory

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Signalling contact "13-14" (Relay) for output voltage OK

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LEDs for status indication

Approvals

UL 508, CAN/CSA C22.2 No.14 Approval refers to rated input voltage U

UL 60950, CAN/CSA C22.2 No.60950 Approval refers to rated input voltage U

GOST

햵 OUTPUT OK: green LED -

output voltage OK

햶 OUTPUT LOW: red LED -

output voltage too low

햷 OUTPUT Adj:

potentiometer -

potentiometer adjustment of the output

adjustment of the output voltage

voltage

햸 single/parallel:

sliding switch -

sliding switch - adjustment of single or

adjustment of single or parallel operation

parallel operation

햹 Circuit diagram

Marks

C-Tick pending

Order data

Type Rated input voltage Rated output voltage /

current

CP-E 24/20.0 115-230 V AC 24 V DC / 20 A 1SVR 427 036 R0000

Order code

Order data - Accessories

Type Description Order code

CP-A RU Redundancy unit

The CP-A RU provides decoupling of two CP-E power supply units < 48 V and  5 A.

1SVR 427 071 R0000

Application

The primary switch mode power supply offers two voltage input ranges. This enables the supply with AC or DC. Furthermore it is equipped with two generous capacitors, which ensure mains buffering of at least 30 ms (at 230 V AC). That is why the devices can be used worldwide also in high ﬂ uctuating networks and battery-powered plants.

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Power supply CP-E 24/20.0

Primary switch mode power supply Data sheet

Operating mode

By means of the potentiometer „OUTPUT Adj“ the output voltage can be adjusted within a range of 22.5 to 28.5 V DC. Thus, the power supply can be optimally adapted to the application, e.g. compensating the voltage drop caused by a long line length.

The green LED „OUTPUT OK“ is lightening during proper operation, i.e. when the output voltage is more than 75 %.

The red LED „OUTPUT LOW“ is lightening when the output voltage is less than 70 % of the rated output voltage.

Switch „single/parallel“ for selection of single or parallel operation. Signalling contact 13-14 (max. 60 V DC / 0.3 A) is ON when the output voltage is more than 75 %.

Installation

Mounting

The switch mode power supply can be snapped on a DIN rail according to EN 50022 as shown in the accompanying picture. For that the device is set with its mounting rail slide on the upper edge of the mounting rail and locked by lifting it downwards.

2CDC 272 017 F0b082CDC 272 017 F0b08

Demounting

Remove the switch mode power supply as shown in the accompanying picture. For that the latching lever is pulled downwards by means of the screwdriver. Alternatively you can press the unlock button to release the device. Then in both cases the device can be unhinged from the mounting rail edge and removed.

Mounting position

The devices have to be mounted horizontally with the input terminals on the bottom. In order to ensure a sufﬁ cient convection, the minimum distance to other modules should not be less than 25 mm in vertical and horizontal direction.

2CDC 272 018 F0b082CDC 272 018 F0b08

2CDC 272 021 F0b08

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Power supply CP-E 24/20.0

Primary switch mode power supply Data sheet

Installation

Electrical connection

Connect the input terminals L and N. The protective earth conductor PE must be connected. The installation must be executed acc. to EN 60950, provide a suitable disconnecting device (e. g. line protection switch) in the supply line. The input side is protected by an internal input fuse.

Rate the lines for the maximum output current (considering the short-circuit current) or provide a separate fuse protection. We recommend to choose the cable section as large as possible in order to minimize voltage drops. Observe the polarity. The device is overload, short-circuit and open-circuit proof. The secondary side of the power supply unit is electrically isolated from the input and internally not earthed (SELV) and can therefore be earthed by the user according to the needs with L+ or L- (PELV).

Connection diagram

L+ L+ L-1314

L-

L+ L+ L-1314

L-

PWM

PE N L

L+, L- Output voltage

L+

L-

L, N Input voltage 13-14 Signalling contact for output voltage OK PE Protective earth

2CDC 272 024 F0b08

Safety instructions and warnings

The device must be installed by qualiﬁ ed persons only and in accordance with the speciﬁ c national regulations (e.g., VDE, etc.). The devices are maintenance-free chassis-mounted units.

Disconnect system from supply network!

Before any installation, maintenance or modiﬁ cation work: Disconnect the system from the supply network and protect against switching on.

Before start of operation:

Attention! Improper installation/operation may impair safety and cause operational difﬁ culties or destruction of the unit. Before operation the following must be ensured:

Connect to main according t the speciﬁ c national regulations.

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Power supply cables and unit must be sufﬁ ciently fused. A disconnecting device has to be provided for the end product to disengage unit and supply cables from supply mains if required.

The protective earth conductor must be connected to the terminal (Protection class I)

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The secondary side of the power supply unit is not earthed and can be earthed by the user according

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to the needs with L+ or L-.

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Rate the output lines for the output current of the power supply and connect thme with the correct polarity.

In order to ensure sufﬁ cient air-cooling the distance to other devices has to be considered.

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In operation:

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Do not modify the installation (primary and secondary side)! High current! Risk of electric arcs and electric shocks (danger to life)!

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Risk of burns: Depending on the operation conditions the enclosure can become very hot.

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The internal fuse is not user-replaceable. If the internal fuse blows, most probably the device is defective. In this case, an examination of the switch mode power supply by the manufacturer is necessary.

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Attention! High voltage! Danger to life!

The power supplies contain components with high stored energy and circuits with high voltage! Do not introduce any objects into the unit, and do not open the unit. With some units of this range the output is capable of providing hazardous energy. Ensure that the service personnel is protected against inadvertent contact with parts carrying energy.

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