ABB Pluggable interface relays CR-M Data Sheet
Data sheet
Power Supply CP-C.1 24/20.0
High-performance primary switch mode power supply
The CP-C.1 power supplies are ABB’s highperformance and most advanced range. With
excellent efficiency, high reliability and innovative
functionality it is prepared for the most demanding
industrial applications. These power supplies have
a 50 % integrated power reserve and operate at
an efficiency of up to 94 %. They are equipped
with overheat protection and active power factor
correction. Combinded with a broad AC and DC
input range and extensive worldwide approvals
the CP-C.1 power supplies are the preferred
choice for professional DC applications.
Giving the power to control.
2CDC 271 004 V0015
Characteristics
– Rated output voltage 24 V DC
– Power reserve design delivers up to 150 % at Ta ≤ 40 °C
– Output voltage adjustable via front-face rotary
potentiometer “OUTPUT Adjust”, 22.5-28.5 V
– Input voltage range 100-240 V AC, 90-300 V DC
– High efficiency
– Low power dissipation and low heating
– Free convection cooling (no forced cooling)
– Ambient temperature range during operation -25...+70 °C
– Open-circuit, overload and short-circuit stable
– Integrated input fuse
– DC OK - signaling output "13-14" (Relay),
Power reserve signaling output "I > IR (Transistor)
– Redundancy unit CP-A RU offering true redundancy,
available as accessory
Ordering details - CP-C.1
Input voltage range Rated output voltage / current Typ e Order code Weight (1 pce)
100-240 V AC, 90-300 V DC 24 V DC / 20 A CP-C.1 24/20.0 1SVR360763R1001 2.83 (6.23)
Approval
SEMI F47
Marks
CE
a
kg (lb)
Related products
Description Redundancy unit Typ e Order code Weight (1 pce)
kg (lb)
2 inputs each up to 20 A and 1 output up to 40 A
40 V and M 5 A
CP-A RU 1SVR427071R0000 0.89 (1.96)
Table of contents
Characteristics ...................................................................1
Ordering details - CP-C.1 ...................................................1
Marks ..................................................................................1
Abbreviations ......................................................................2
Functions ............................................................................3
Application..........................................................................3
Power reserve .....................................................................3
Signaling output .................................................................3
Adjustable output voltage ...................................................3
LED and relay state table....................................................4
LEDs and signaling outputs ................................................4
Operating mode ..................................................................5
Parallel operation ...............................................................5
Parallel connection of power supplies for increased power ...5
Parallel connection of power supplies for redundancy ..........6
Mounting .............................................................................7
Mounting positions .............................................................7
Mounting CP-C.1 in position 7 ............................................7
Derating of output current for position 1 ..............................8
Electrical connection .........................................................8
24 and 48 V DC connection ................................................9
Connection to TN, TT networks ..........................................9
Safety instructions and warnings .......................................10
Attention! Danger to life! .....................................................10
Technical data.....................................................................11
Input circuit - Supply circuit ................................................11
User interface ....................................................................11
Output circuit - Power output .............................................11
Signaling outputs ...............................................................12
General data ......................................................................12
Electrical connection ..........................................................12
Environmental data .............................................................13
Isolation data .....................................................................13
Standards ..........................................................................13
Electromagnetic compatibility .............................................14
Technical diagrams .............................................................15
Efficiency diagrams ............................................................15
Characteristic curve of output .............................................16
Characteristic curve of temperature.....................................16
Dimensions .........................................................................17
Further documentation .......................................................17
Abbreviations
MCB - Miniature circuit breaker
AC - Alternating current
DC - Direct current
LED - Light emitting diode
L - Line
N - Neutral
PE - Protective earth
PLC - Programmable logic controller
DIN - Deutsche Industrie Norm
PELV - Protective extra low voltage
TN - Terre neutre (neutral grounded)
TT - Terre terre (grounded network)
IT - Isolé terre (isolated network)
VDE - Verein Deutscher Elektrotechniker
IP20 - international protection code
AWG - American wire gauge
IEC - International electrotechnical comission
UL - Underwriters laboratories
EN - Europäische Norm
SELV - Safety extra low voltage
EMC - Electromagnetic compatibility
SEMI - Semiconductor equipment materials international
FCC - Federal communication comission
CISPR - Comité international spécial des perturbations radioélectriques
CSA - Canadian standards association
2 - Power Supply CP-C.1 24/20.0 | Data sheet
Functions
1
2
3
4
5
6
2CDC 271 004 V0015
7
8
1
13-14: Relay output to signal output OK
2
I > IR: Power reserve transistor output
3
OUTPUT L+, L-: Output terminals
4
Indication of operational states
OUTPUT OK: Green LED
POWER RESERVE I > IR: Yellow LED
5
OUTPUT Adjust: Rotary potentiometer -
Adjustment of output voltage 22.5 - 28.5 V DC
6
Circuit diagram
7
INPUT L(+), N(-), o /PE: Input terminals
8
Side mounting screw holes for DIN rail adapter / lateral mounting
Application
The primary switch mode power supply CP-C.1 has a wide AC or DC input voltage range. Furthermore the CP-C.1 is
equipped with capacitors that ensure a hold-up time of at least 40 ms. This enables worldwide usage and permits safe
operation in fluctuating networks and battery-powered applications.
The CP-C.1 has a robust metallic housing and a reliable construction which enables usage in harsh industrial environments.
The power reserve of up to 50 % enables trouble-free starting of heavy loads eliminating the need of usage of an oversized
power supply.
Power reserve
The primary switch mode power supply CP-C.1 is equipped with a power reserve functionality to handle the start-up of
particulary heavy loads (e.g. of a capacitive load or a motor). To ensure that heavy loads are started up, the CP-C.1 delivers
additionally up to 50 % of the rated output current to secure the operation of the application. This status is displayed by the
yellow LED labelled POWER RESERVE I > IR.
Signaling output
For the communication of the status of the power supply the CP-C.1 is equipped with a relay output to signal output OK as
well as a transistor output to indicate when the power reserve is active. These signals can be used for communication to a
higher level control system e.g. a PLC.
Adjustable output voltage
The CP-C range power supplies feature a continuously adjustable output voltage of 22.5 to 28.5 V DC. Thus they can be
optimally adapted to the application, e.g. compensating the voltage drop caused by a long line length.
Data sheet | Power Supply CP-C.1 24/20.0 - 3
LED and relay state table
A
CP-C.
L+
CP-C.
13
max. 30 V AC, 0.5
max. 24 V DC, 1 A
(resistive load)
1
Output OK - relay output
14
Load 20 mA
I > I
R
1
Power reserve - transistor output
L-
L+
Load
2CDC 272 013 F0015
2CDC 272 014 F0015
LEDs and signaling outputs
Output voltage Output OK: LED green Relay 13-14
M 92 % of U
< 90 % of U
Output current Power reserve: LED yellow Transistor I>I
out
V
out
Z
OFF ON (closed)
II
R
I>I
R
V
Closed
Open
R
OFF (open)
It is possible to use the messaging and signaling functionality with power supplies connected in parallel.
The parallel operation has no influence on the function.
4 - Power Supply CP-C.1 24/20.0 | Data sheet
Operating mode
Parallel operation
There are two main reasons for a parallel connection of power supplies:
– Increase of power
– Redundancy
Up to 5 devices of the same type can be connected in parallel. For safe and reliable operation it is important to follow the
recommendations given in the following section.
Parallel connection of power supplies for increased power
If the current required by the load is higher than a single power supply can deliver, for example after the expansion of
an existing installation, an increase of the output power can be obtained by connecting power supplies in parallel. The
following prerequisites have to be fulfilled when connecting power supplies in parallel for the purpose of increased power:
– The paralleled devices must be of the identical type.
– Repeated voltage drops on the supply lines or at the terminals would lead to unbalanced load at the common connection
point. To prevent this, you have to observe the following when connecting the power supply units:
– Identical lengths of the load supply lines.
– Identical conductor cross sections of the load supply lines.
– Terminal screws have to be fastened with the same torque to guarantee equal contact resistances.
– The output voltages of the power supplies must not differ by more than 50 mV. Otherwise, safe operation is not
possible.
load
+ -
-+ -+ -+ -+ -+ -+
1. CP-C.1 2. CP-C.1 3. CP-C.1
2CDC 272 002 F0015
Correct wiring for increased power
load
-+
-+ -+ -+ -+ -+ -+
2CDC 272 001 F0015
3. CP-C.12. CP-C.11. CP-C.1
2CDC 272 003 F0015
Installation for increased power Incorrect wiring for increased power
Important:
The devices must not be connected directly to each other! This could lead to an overload of the terminals since the
terminals are dimensioned for the maximum output current of a single power supply only. Always use a common connection
point!
Data sheet | Power Supply CP-C.1 24/20.0 - 5
Parallel connection of power supplies for redundancy
PE
Several power supplies are connected in parallel in order to guarantee continuous operation of the system if one power
supply fails. CP-C.1 can be used in two different redundancy modes depending on what type of redundancy is required:
– Simple redundancy, n+1
– True redundancy
Simple redundancy, n+1 redundancy
For simple or n+1 redundancy, the power supplies are connected in parallel like for the increase of capacity. To achieve
redundancy the current required by the load must not exceed the maximum output power of one single power supply (in
case of “1+1 redundancy”) or n power supplies (where n is max. 4).
We recommend connecting the primary sides of the power supplies to different phases of the mains in order to obtain
continuous operation of the system if one phase fails.
CP-C.11. n. CP-C.1
L+ L+L- L-
I
r1
Simple redundancy or n+1 setup
I
(n-1) * I
Load
I
rn
r
2CDC 272 005 F0215
True redundancy
True redundancy gives higher system availability compared to simple or n+1 redundancy.
In a true redundancy setup the power supplies are decoupled from each other with decoupling diodes. This protects the
individual power supplies from affecting each other in case of failure of one unit or short cirucit on the secondary side or in
the wiring.
For two inputs of up to 20 A and one output up to 40 A the ABB redundancy unit CP-A RU (available as an accessory) can
be used.
The inputs of these units are connected to the terminals L+ and L- of the power supplies. The loads are supplied directly
from the outputs of the redundancy unit.
L+ L+L- L-
CP-C.1 CP-C.1
LNPE LNPE
++--
INPUT 1INPUT 2
CP-A RU
OUTPUT
+-+-
L1
L2
L3
N
True redundancy using a CP-A RU redundancy unit
6 - Power Supply CP-C.1 24/20.0 | Data sheet
Load
2CDC 272 006 F0215
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