Puls CP20.241, CP20.241-C1, CP20.241-S1, CP20.241-S2 Catalog Page

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Page 1

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

GENERAL DESCRIPTION

The Dimension CP-Series are cost optimized power supplies without compromising quality, reliability and performance. The most outstanding features of the CP20 series are the high efficiency, electronic inrush current limitation, active PFC, wide operational temperature range and the extraordinary small size.

The CP20.241-C1 is equipped with conformal coated pcboards preferred for applications in harsh areas.

The CP20.241-S1 is equipped with quick-connect springclamp terminals preferred for applications which are exposed to mechanical vibration.

The CP20.241-S2 is equipped with push-in terminals optimized for automated cabinet wiring.

The devices have a power reserve of 20% included, which may even be used continuously at temperatures up to +45°C.

High immunity to transients and power surges as well as low electromagnetic emission, a DC-OK relay contact and a large international approval package for a variety of applications makes this unit suitable for nearly every situation.

ORDER NUMBERS

Power Supply CP20.241

CP20.241-C1 With conformal coated pc-boards CP20.241-S1 With quick-connect spring-clamp terminals CP20.241-S2 With push-in terminals

Accessory ZM5.WALL Wall/Panel mount bracket

UF20.241 Buffer module YR40.242 Redundancy module YR40.245 Redundancy module

24V, 20A, SINGLE PHASE INPUT

POWER SUPPLY

 AC 100-240V Wide-range Input  Width only 48mm  Efficiency up to 95.6%  Excellent Partial Load Efficiency  20% Output Power Reserves  Easy Fuse Breaking – 3 times nominal current for 12ms  Safe Hiccup

PLUS

Overload Mode

 Active Power Factor Correction (PFC)  Minimal Inrush Current Surge  Full Power Between -25°C and +60°C  DC-OK Relay Contact  Current Sharing Feature for Parallel Use  3 Year Warranty

SHORT-FORM DATA

Output voltage DC 24V Nominal Adjustment range 24 - 28V Factory set 24.1V Output current 24.0 - 20.6A Below +45°C ambient

20.0 – 17.1A At +60°C ambient

15.0 – 13.0A At +70°C ambient Derate linearely between +45°C and +70°C

Input voltage AC AC 100-240V -15%/+10% Mains frequency 50-60Hz ±6% Input current AC 4.26 / 2.23A At 120 / 230Vac Power factor 0.99 / 0.95 At 120 / 230Vac Input voltage DC DC 110-150V ±20% Input current DC 4.64A At 110Vdc AC Inrush current 10.0 / 4.5A At 120 / 230Vac Efficiency 94.2 / 95.6% At 120 / 230Vac Losses 29.6 / 22.1W At 120 / 230Vac Hold-up time 32ms Temperature range -25°C to +70°C Size (WxHxD) 48x124x127mm Without DIN-rail Weight 830g / 1.83lb

MARKINGS

IND. CONT. E

UL 508, planned

Class I Div 2, planned

UL 60950-1, planned

IECEx ATEX

II 3G Ex ec nC II T3 Gc

planned

Marine, planned

(ATEX, planned)

EMC, LVD

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Page 2

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

INDEX

Page Page

1. Intended Use .......................................................3

2. Installation Requirements...................................3

3. AC-Input...............................................................4

4. DC-Input...............................................................5

5. Input Inrush Current ...........................................5

6. Output .................................................................6

7. Hold-up Time.......................................................8

8. DC-OK Relay Contact ..........................................8

9. Efficiency and Power Losses................................9

10. Lifetime Expectancy ..........................................10

11. MTBF ..................................................................10

12. Functional Diagram...........................................11

13. Terminals and Wiring........................................11

14. Front Side and User Elements...........................13

15. EMC....................................................................14

16. Environment......................................................15

17. Protection Features ...........................................16

18. Safety Features ..................................................16

19. Dielectric Strength ............................................17

20. Approvals...........................................................18

21. RoHS, REACH and Other Fulfilled Standards ...18

The information given in this document is correct to the best of our knowledge and experience at the time of publication. If not expressly agreed otherwise, this information does not represent a warranty in the legal sense of the word. As the state of our knowledge and experience is constantly changing, the information in this data sheet is subject to revision. We therefore kindly ask you to always use the latest issue of this document (available under www.pulspower.com). No part of this document may be reproduced or utilized in any form without our prior permission in writing.

22. Physical Dimensions and Weight..................... 19

23. Accessories ........................................................ 20

23.1. UF20.241 Buffer Module .......................... 20

23.2. YR40.242 - Redundancy Modules ............20

23.3. YR40.245 - Redundancy Modules ............20

23.4. ZM5.WALL – Wall/Panel Mount Bracket .21

24. Application Notes............................................. 22

24.1. Peak Current Capability ...........................22

24.2. Back-feeding Loads ..................................23

24.3. External Input Protection.........................23

24.4. Output Circuit Breakers............................23

24.5. Series Operation .......................................24

24.6. Parallel Use to Increase Output Power....24

24.7. Parallel Use for Redundancy ....................25

24.8. Inductive and Capacitive Loads................26

24.9. Charging of Batteries ...............................26

24.10. Operation on Two Phases ........................26

24.11. Use in a Tightly Sealed Enclosure ............26

24.12. Mounting Orientations ............................27

TERMINOLOGY AND ABREVIATIONS

PE and symbol PE is the abbreviation for Protective Earth and has the same meaning as the symbol .

Earth, Ground This document uses the term “earth” which is the same as the U.S. term “ground”.

T.b.d. To be defined, value or description will follow later.

AC 230V A figure displayed with the AC or DC before the value represents a nominal voltage with

standard tolerances (usually ±15%) included. E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)

230Vac A figure with the unit (Vac) at the end is a momentary figure without any additional

tolerances included.

50Hz vs. 60Hz As long as not otherwise stated, AC 230V parameters are valid at 50Hz mains frequency.

may A key word indicating flexibility of choice with no implied preference.

shall A key word indicating a mandatory requirement.

should A key word indicating flexibility of choice with a strongly preferred implementation.

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

1. INTENDED USE

This device is designed for installation in an enclosure and is intended for the general professional use such as in industrial control, office, communication, and instrumentation equipment.

Do not use this power supply in equipment, where malfunction may cause severe personal injury or threaten human life.

2. INSTALLATION REQUIREMENTS

This device may only be installed and put into operation by qualified personnel. This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect. If damage or malfunction should occur during installation or operation, immediately turn power off and send unit to

the factory for inspection. Mount the unit on a DIN-rail so that the input terminals are located on the bottom of the unit. For other mounting

orientations see de-rating requirements in this document. See chapter 24.12. This device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do

not cover ventilation grid (e.g. cable conduits) by more than 15%! Keep the following installation clearances: 40mm on top, 20mm on the bottom, 5mm on the left and right sides are

recommended when the device is loaded permanently with more than 50% of the rated power. Increase this clearance to 15mm in case the adjacent device is a heat source (e.g. another power supply).

A disconnecting means shall be provided for the output of the power supplies when used in applications according to CSA C22.2 No 107.1-01.

WARNING

- Do not use the power supply without proper grounding (Protective Earth). Use the terminal on the input block for earth connection and not one of the screws on the housing.

- Turn power off before working on the device. Protect against inadvertent re-powering.

- Make sure that the wiring is correct by following all local and national codes.

- Do not modify or repair the unit.

- Do not open the unit as high voltages are present inside.

- Use caution to prevent any foreign objects from entering the housing.

- Do not use in wet locations or in areas where moisture or condensation can be expected.

- Do not touch during power-on, and immediately after power-off. Hot surfaces may cause burns.

Risk of electrical shock, fire, personal injury or death.

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Page 4

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

3. AC-INPUT

AC input nom. AC 100-240V Suitable for TN-, TT- and IT mains networks AC input range min. 85-264Vac Continuous operation min. 264-300Vac < 500ms Allowed voltage L or N to earth max. 300Vac Continuous, IEC 62103 Input frequency nom. 50–60Hz ±6% Turn-on voltage typ. 82Vac Steady-state value, see Fig. 3-1 Shut-down voltage typ. 72Vac Steady-state value, see Fig. 3-1 External input protection See recommendations in chapter 24.3.

AC 100V AC 120V AC 230V Input current typ. 5.15A 4.26A 2.23A At 24V, 20A, see Fig. 3-3 Power factor*) typ. 0.996 0.996 0.980 At 24V, 20A, see Fig. 3-4 Crest factor

**)

typ. 1.65 1.63 1.63 At 24V, 20A Start-up delay typ. 450ms 420ms 440ms See Fig. 3-2 Rise time typ. 45ms 45ms 45ms At 24V, 20A const. current load,

typ. 90ms 90ms 90ms At 24V, 20A const. current load,

Turn-on overshoot max. 200mV 200mV 200mV See Fig. 3-2

*) The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit. **) The crest factor is the mathematical ratio of the peak value to RMS value of the input current waveform.

Fig. 3-1 Input voltage range Fig. 3-2 Turn-on behavior, definitions

OUT

Rated

input range

max.

500ms

Input Voltage

0mF load capacitance, see Fig. 3-2

20mF load capacitance,, see Fig. 3-2

Turn-on

Shut-down

Fig. 3-3 Input current vs. output current at

Input Current, typ.

24681012141618

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

85V

24V output voltage

a) 100Vac b) 120Vac c) 230Vac

Output Current

300Vac264V

20 22

24A

Output Voltage

Fig. 3-4 Power factor vs. output current at

Power Factor, typ.

1.0

0.95

0.9

0.85

0.8

0.75 2 4 6 8 1012141618 24A

Start-up

delay

24V output voltage

- 5%

Rise

Time

Overshoot

a, b

a) 100Vac b) 120Vac c) 230Vac

Output Current

20 22

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Page 5

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

4. DC-INPUT

DC input nom. DC 110-150V ±20% DC input range min. 88-187Vdc Continuous operation DC input current typ. 4.64A At 110Vdc, at 24V, 20A Allowed Voltage L/N to Earth max. 375Vdc Continuous, IEC 62477-1 Turn-on voltage typ. 80Vdc Steady state value Shut-down voltage typ. 70Vdc Steady state value

Fig. 4-1 Wiring for DC Input

Battery

Power Supply

Load

Instructions for DC use:

a) Use a battery or a similar DC source. A supply from the

intermediate DC-bus of a frequency converter is not recommended and can cause a malfunction or damage

the unit. b) Connect +pole to L and –pole to N. c) Connect the PE terminal to an earth wire or to the

machine ground.

5. INPUT INRUSH CURRENT

An active inrush limitation circuit limits the input inrush current after turn-on of the input voltage. The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on.

Inrush current max. 15A typ. 12A

AC 100V AC 120V AC 230V

12A

peak

10A

peak

5.5A

peak

4.5A

peak

Inrush energy max. negligible small Temperature independent Inrush delay typ. 500ms 450ms 450ms Start-up delay plus rise time

Fig. 5-1 Typical input inrush current

behaviour at nominal load and 25°C ambient

Input Current 5A / DIV

Input

Output

100mS/DIV

230Vac

24Vdc

Temperature independent Temperature independent

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Page 6

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

6. OUTPUT

Output voltage nom. 24V Adjustment range min. 24-28V Guaranteed max. 30V4) At clockwise end position of potentiometer Factory settings typ. 24.1V ±0.2%, at full load, cold unit, in “single use” mode typ. 24.1V ±0.2%, at full load, cold unit, in “parallel use” mode typ. 25.1V At no load, cold unit, in “parallel use” mode Line regulation max. 10mV At 85-300Vac input voltage change Load regulation max. 100mV In “single use” mode: static value, 0A Æ 20A,

see Fig. 6-1

Ripple and noise voltage max. 50mVpp 20Hz to 20MHz, 50Ohm Output current nom. 20A At 24V, ambient temperature <60°C, see Fig. 6-1 nom. 24A1) At 24V, ambient temperature <45°C, see Fig. 6-1 nom. 17.1A At 28V, ambient temperature <60°C, see Fig. 6-1 nom. 20.6A

Output power nom. 480W Continuously available nom. 576W1) Power Boost1) Overload behaviour cont. current Output voltage > 13Vdc, see Fig. 6-1 Hiccup Short-circuit current min. 26A3) Load impedance <10mOhm, see Fig. 6-3 max. 31A3) Load impedance <10mOhm, see Fig. 6-3

min. 55A Up to 12ms, load impedance <10mOhm, see Fig. 6-4 typ. 70A Up to 12ms, load impedance <10mOhm, see Fig. 6-4 Output capacitance typ. 8 500μF Included inside the power supply

1) Power Boost This power/ current is continuously allowed up to an ambient temperature of 45°C. Above 45°C, do not use this power/ current longer than a duty cycle of 10% and/ or not longer than 1 minute every 10 minutes.

2) Hiccup

3) Discharge current of output capacitors is not included.

4) This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. It is not

PLUS

At heavy overloads (when output voltage falls below 13V), the power supply delivers continuous output current for 2s. After this, the output is switched off for approx. 18s before a new start attempt is automatically performed. This cycle is repeated as long as the overload exists. If the overload has been cleared, the device will operate normally. See Fig. 6-3.

guaranteed value which can be achieved. The typical value is about 28.5V (in “single use” mode).

Mode

typ. 1000mV In “parallel use” mode: static value, 0A Æ 20A,

see Fig. 6-2

At 28V, ambient temperature <45°C, see Fig. 6-1

typ. 60A Up to 12ms, output voltage stays above 20V, see Fig.

6-4, This peak current is available once every five seconds. See chapter 24.1 for more peak current measurements.

PLUS

mode2) Output voltage < 13Vdc, see Fig. 6-1

max. 9.8A

Average (R.M.S.) current, load impedance 50mOhm,

see Fig. 6-3

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Page 7

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

Fig. 6-1 Output voltage vs. output current,

Output Voltage

typ.

(Single Use, typ.)

28V

Factory setting

4 0

Output Current

025

Fig. 6-3 Short-circuit on output, Hiccup

Output Current

29A

Normal

operation

Short -circuit

18s

Adjustment

Range

Continuous

current

PLUS

Hiccup

mode

PLUS®

18s

24V, 20A, SINGLE PHASE INPUT

40A155 10 20 30 35

mode, typ. Fig. 6-4 Dynamic overcurrent capability, typ.

Normal

operation

18s

Fig. 6-2 Output voltage in “parallel use”

Output Voltage

mode, typ.

(Parallel Use, typ.)

29V

28V

27V

26V

25V

Factory

24V

setting

23V

22V

0816

Output Voltage

(dynamic behavior, < 12ms)

28V

Adjustment

Range

4 0

Output Current

Adjustment

Output Current

Range

24A20124

70A3010 40 5020 60

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

7/27

Page 8

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

7. HOLD-UP TIME

AC 100V AC 120V AC 230V Hold-up Time typ. 65ms 65ms 65ms At 24V, 10A, see Fig. 7-1 min. 54ms 54ms 54ms At 24V, 10A, see Fig. 7-1 typ. 32ms 32ms 32ms At 24V, 20A, see Fig. 7-1 min. 24ms 24ms 24ms At 24V, 20A, see Fig. 7-1

Fig. 7-1 Hold-up time vs. input voltage Fig. 7-2 Shut-down behavior, definitions

Hold-up Time

80ms

70 60 50 40 30 20 10

90 120 155 190 230Vac

24V, 10A, typ.

24V, 10A, min.

24V, 20A, typ.

24V, 20A, min.

Input Voltage

Output Voltage

Zero Transition

- 5%

Hold-up Time

8. DC-OK RELAY CONTACT

The DC-OK relay contact reports an output voltage above 90% of the adjusted output voltage of a running device.

Contact closes As soon as the output voltage reaches typ. 90% of the adjusted output voltage level. Contact opens As soon as the output voltage dips more than 10% below the adjusted output voltage.

Short dips will be extended to a signal length of 100ms. Dips shorter than 1ms will be ignored. Contact ratings Maximal 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A, resistive load Minimal permissible load: 1mA at 5Vdc Isolation voltage See dielectric strength table in section 18.

Fig. 8-1 DC-ok relay contact behavior

= V

OUT

ADJ

10%

open

1ms

0.9* V

ADJ

100ms

openclosed closed

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

8/27

Page 9

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

9. EFFICIENCY AND POWER LOSSES

AC 100V AC 120V AC 230V Efficiency typ. 93.6% 94.2% 95.6% At 24V, 20A typ. 93.5% 94.1% 95.5% At 24V, 24A (Power Boost) Average efficiency

typ. 93.2% 93.8% 95.0% 25% at 5A, 25% at 10A,

Power losses typ. 2.5W 2.2W 2.2W At 24V, 0A typ. 16.0W 15.0W 12.5W At 24V, 10A typ. 32.8W 29.6W 22.1W At 24V, 20A typ. 40.0W 36.1W 27.1W At 24V, 24A (Power Boost)

*) The average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25%

of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100% of the nominal load for the rest of the time.

Fig. 9-1 Efficiency vs. output current at 24V,

Efficiency

typ

96%

95 94 93 92 91 90 88 87

4 6 8 101214 1820 24A

Fig. 9-3 Efficiency vs. input voltage at 24V,

Efficiency

96%

20A, typ.

100

Output Current

16 22

Input Voltage

120 180 230 264Vac

(a) 100Vac (b) 120Vac (c) 230Vac

)

(

)

(

)

Fig. 9-2 Losses vs. output current at 24V, typ.

Power Losses

40W

(a) 100Vac

(b) 120Vac

25 20 15 10

5 0

0 2 6 8 12 14 24A

Fig. 9-4 Losses vs. input voltage at 24V, 20A,

typ.

Power Losses

40W

100

Output Current

120 180 230 264Vac

25% at 15A. 25% at 20A

18 204 10 16

Input Voltage

(

)

(

)

(

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

9/27

Page 10

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

10. LIFETIME EXPECTANCY

The Lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours and is calculated according to the capacitor’s manufacturer specification. The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years (131 400h). Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices.

AC 100V AC 120V AC 230V Lifetime expectancy 123 000h 149 000h 173 000h At 24V, 10A and 40°C 348 000h 422 000h 488 000h At 24V, 10A and 25°C 48 000h 60 000h 94 000h At 24V, 20A and 40°C 136 000h 169 000h 265 000h At 24V, 20A and 25°C 23 000h 31 000h 54 000h At 24V, 24A and 40°C 64 000h 88 000h 152 000h At 24V, 24A and 25°C

11. MTBF

MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of a device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.

The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of e.g. 1 000 000h means that statistically one unit will fail every 100 hours if 10 000 units are installed in the field. However, it can not be determined if the failed unit has been running for 50 000h or only for 100h.

For these types of units the MTTF (Mean Time To Failure) value is the same value as the MTBF value.

AC 100V AC 120V AC 230V MTBF SN 29500, IEC 61709 422 000h 445 000h 590 000h At 24V, 20A and 40°C 790 000h 832 000h 1 060 000h At 24V, 20A and 25°C MTBF MIL HDBK 217F 186 000h 191 000h 226 000h At 24V, 20A and 40°C;

256 000h 263 000h 313 000h At 24V, 20A and 25°C;

40 000h 42 000h 50 000h At 24V, 20A and 40°C;

53 000h 55 000h 67 000h At 24V, 20A and 25°C;

Ground Benign GB40

Ground Benign GB25

Ground Fixed GF40

Ground Fixed GF25

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

10/27

Page 11

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

12. FUNCTIONAL DIAGRAM

Fig. 12-1 Functional diagram CP20.241, CP20.241-C1, CP20,241-S1

Input Fuse Input Filter Input Rectifier Active Inrush Limiter

Temper-

ature Shut-

down

Input Fuse Input Filter Input Rectifier Active Inrush Limiter

PFC

Converter

Protection

PFC

Converter

Output

Over-

Voltage

Output

Power

Manager

Fig. 12-2 Functional diagram CP20,241-S2

Power

Converter

Output Voltage Monitor

Power

Converter

Output

Filter

Output

Voltage

Regulator

DC-ok Relay

Output

Filter

24V, 20A, SINGLE PHASE INPUT

+ +

Link for Parallel Use

OUT

DC-ok LED

DC-ok Contact

Temper-

ature Shutdown

Output

Power

Manager

Output

Over-

Voltage

Protection

Output Voltage Monitor

Output

Voltage

Regulator

DC-ok Relay

Link for Parallel Use

OUT

DC-ok LED

DC-ok Contact

13. TERMINALS AND WIRING

The terminals are IP20 Finger safe constructed and suitable for field- and factory wiring.

CP20.241, CP20.241-C1 Input Output DC-OK-Signal

Type Screw termination Screw termination Push-in termination Solid wire Max. 6mm2 Max. 6mm2 Max. 1.5mm2 Stranded wire Max. 4mm2 Max. 4mm2 Max. 1.5mm2 American Wire Gauge AWG 20-10 AWG 20-10 AWG 24-16 Max. wire diameter (including ferrules) 2.8mm 2.8mm 1.6mm Recommended tightening torque Max. 1Nm, 9lb-in Max. 1Nm, 9lb-in Wire stripping length 7mm / 0.28inch 7mm / 0.28inch 7mm / 0.28inch Screwdriver 3.5mm slotted or cross-

head No 2

3.5mm slotted or crosshead No 2

3mm slotted to open the spring

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

11/27

Page 12

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

CP20.241-S1 Input Output DC-OK-Signal

Type Quick-connect spring-

clamp termination

Quick-connect springclamp termination

Push-in termination

Solid wire Max. 6mm2 Max. 6mm2 Max. 1.5mm2 Stranded wire Max. 4mm2 Max. 4mm2 Max. 1.5mm2 American Wire Gauge AWG 20-10 AWG 20-10 AWG 24-16 Max. wire diameter (including ferrules) 2.8mm 2.8mm 1.6mm Wire stripping length 10mm / 0.4inch 10mm / 0.4inch 7mm / 0.28inch Screwdriver - - 3mm slotted to open

the spring

CP20.241-S2 Input Output DC-OK-Signal

Type Push-in termination Push-in termination Push-in termination Solid wire Max. 2.5mm2 Max. 10mm2 Max. 1.5mm2 Stranded wire Max. 2.5mm2 Max. 6mm2 Max. 1.5mm2

Stranded wire with ferrules Max. 1.5mm

Max. 4mm2 Max. 1.5mm2 American Wire Gauge AWG 24-12 AWG 24-8 AWG 24-16 Max. wire diameter (including ferrules) 2.3mm 3.3mm 1.6mm Wire stripping length 10mm / 0.4inch 15mm / 0.6inch 7mm / 0.28inch Screwdriver 3.0mm slotted to open

the spring

3.5mm slotted to open the spring

3mm slotted to open the spring

Instructions for wiring:

a) Use appropriate copper cables that are designed for minimum operating temperatures of:

60°C for ambient up to 45°C and 75°C for ambient up to 60°C and

90°C for ambient up to 70°C minimum. b) Follow national installation codes and installation regulations! c) Ensure that all strands of a stranded wire enter the terminal connection! d) Unused terminal compartments should be securely tightened. e) Ferrules are allowed.

Daisy chaining:

Daisy chaining (jumping from one power supply output to the next) is allowed as long as the average output current through one terminal pin does not exceed 25A. If the current is higher, use a separate distribution terminal block as shown in Fig. 13-2.

Fig. 13-1 Daisy chaining of outputs Fig. 13-2 Using distribution terminals

Distribution

- -

Terminals

Load

Power

Supply

- -

+ +

Output

Power

Supply

- -

+ +

Output

max 25A!

continuous

Load

Power

Supply

+ +

- -

Output

Power Supply

+ +

Output

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Page 13

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

14. FRONT SIDE AND USER ELEMENTS

CP20.241, CP20.241-C1 CP20.241-S1 CP20.241-S2

Fig. 14-1 Front side

Input Terminals

A N, L Line input

PE (Protective Earth) input

B Output Terminals

CP20.241-S2: one + pole and two identical - poles All other units: two identical + poles and three identical - poles

+ Positive output

– Negative (return) output

C Output Voltage Potentiometer

Open the flap to adjust the output voltage.

DC-OK LED (green)

On, when the output voltage is >90% of the adjusted output voltage

DC-OK Relay Contact

The DC-OK relay contact is synchronized with the DC-OK LED. See chapter 8 for details.

F “Parallel Use” “Single Use” Link

Link the two terminal poles when power supplies are connected in parallel. In order to achieve a sharing of the load current between the individual power supplies, the “parallel use” regulates the output voltage in such a manner that the voltage at no load is approx. 4% higher than at nominal load. See also chapter 24.6.

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

15. EMC

The power supply is suitable for applications in industrial environment as well as in residential, commercial and light industry environment without any restrictions.

EMC Immunity

Electrostatic discharge EN 61000-4-2 contact discharge

Electromagnetic RF field EN 61000-4-3 80MHz-2.7GHz 20V/m Criterion A Fast transients (Burst) EN 61000-4-4 input lines

Surge voltage on input EN 61000-4-5 L Æ N

Surge voltage on output EN 61000-4-5 + Æ -

Surge voltage on DC-OK EN 61000-4-5 DC-OK signal Æ PE 1kV Criterion A Conducted disturbance EN 61000-4-6 0.15-80MHz 20V Criterion A Mains voltage dips EN 61000-4-11 0% of 100Vac

Voltage interruptions EN 61000-4-11 0% of 200Vac (=0V) 5000ms Criterion C Voltage sags SEMI F47 0706 dips on the input voltage according to SEMI F47 standard 80% of 120Vac (96Vac)

Powerful transients VDE 0160 over entire load range 750V, 0.3ms Criterion A

Criterions: A: Power supply shows normal operation behavior within the defined limits. C: Temporary loss of function is possible. Power supply may shut-down and restarts by itself. No damage or hazards for the power supply

will occur.

EMC Emission

Conducted emission input lines

Conducted emission output lines

Radiated emission EN 55011, EN 55022 Class B Harmonic input current EN 61000-3-2 Class A equipment: fulfilled

Voltage fluctuations, flicker EN 61000-3-3 Fulfilled*) This device complies with FCC Part 15 rules.

Operation is subjected to following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

*) tested with constant current loads, non pulsing **) for information only, not mandatory for EN 61000-6-3

**)

According generic standards: EN 61000-6-1 and EN 61000-6-2

8kV

air discharge

output lines DC-OK signal (coupling clamp)

L Æ PE, N Æ PE

+ / - Æ PE

40% of 100Vac 70% of 100Vac 0% of 200Vac 40% of 200Vac 70% of 200Vac

70% of 120Vac (84Vac) 50% of 120Vac (60Vac)

According generic standards: EN 61000-6-3 and EN 61000-6-4 EN 55011, EN 55022, FCC Part 15, CISPR 11, CISPR 22 Class B

IEC/CISPR 16-1-2, IEC/CISPR 16-2-1 T.B.D

15kV

4kV 2kV 2kV

2kV 4kV

1kV 2kV

0Vac, 20ms 40Vac, 200ms 70Vac, 500ms 0Vac, 20ms 80Vac, 200ms 140Vac, 500ms

1000ms 500ms 200ms

Class C equipment: fulfilled in the load range from 8 to 24A

Criterion A Criterion A

Criterion A Criterion A Criterion A

Criterion A Criterion A

Criterion A Criterion C Criterion A Criterion A Criterion A Criterion A

Criterion A Criterion A Criterion A

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

Switching Frequencies

The power supply has two converters with two different switching frequencies included. Switching frequency 1 70kHz to 130kHz PFC converter, input voltage and output power dependent Switching frequency 2 80kHz to 140kHz Main converter, output power dependent

16. ENVIRONMENT

Operational temperature Storage temperature -40°C to +85°C (-40°F to 185°F) For storage and transportation Output de-rating 6.4W/°C

Humidity

5 to 95% r.h. IEC 60068-2-30

Vibration sinusoidal 2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g3)

Shock 30g 6ms, 20g 11ms3)

Altitude 0 to 2000m (0 to 6 560ft) Without any restrictions 2000 to 6000m (6 560 to 20 000ft) Reduce output power or ambient

Altitude de-rating 30W/1000m or 5°C/1000m > 2000m (6500ft), see Fig. 15-2 Over-voltage category III IEC 62477-1, altitudes up to 2000m II For altitudes from 2000m to 6000m Degree of pollution 2 IEC 62477-1, not conductive LABS compatibility The unit does not release any silicone or other LABS-critical substances and is suitable for

Audible noise Some small audible noise will be emitted from the power supply Corrosive gases ISA-71.04-1985, Severity Level G3, IEC 60068-2-60 Test Ke Method 4

1) Operational temperature is the same as the ambient or surrounding temperature and is defined as the air temperature 2cm below the unit.

2) Do not energize while condensation is present

3) Tested in combination with DIN-Rails according to EN 60715 with a height of 15mm and a thickness of 1.3mm and standard orientation.

Fig. 16-1 Output current vs. ambient temp. Fig. 16-2 Output current vs. altitude

Allowed Output Current at 24V

24A

20A

16A

12A

A...90 to 264Vac, continuous

B... short term

-25 0 20 40

-25°C to +70°C (-13°F to 158°F) Reduce output power according Fig. 15-1

45°C to 60°C (113°F to 140°F)

12W/°C

60°C to 70°C (140°F to 158°F)

IEC 60068-2-6

2 hours / axis

IEC 60068-2-27

3 bumps / direction, 18 bumps in total

temperature, see Fig. 15-2 Overvoltage category II according to IEC 62477-1,

use in paint shops.

Allowable Output Current at 24V

70°C

Ambient Temperature

24A

20A

16A

12A

< B C D

0 2000m 4000m

C B

Altitude

6000m

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

17. PROTECTION FEATURES

Output protection Electronically protected against overload, no-load and short-circuits Output over-voltage protection typ. 30.5Vdc

max. 32Vdc

Degree of protection IP 20 EN/IEC 60529

Penetration protection > 5mm E.g. screws, small parts Over-temperature protection yes Output shut-down with automatic restart Input transient protection MOV (Metal Oxide Varistor)

Internal input fuse included

*) In case of a protection event, audible noise may occur.

In case of an internal power supply defect, a redundant circuit limits the maximum output voltage. The output shuts down and automatically attempts to restart.

Caution: For use in a controlled environment according to CSA 22.2 No 107.1-01.

Not user replaceable slow-blow high-braking capacity fuse

18. SAFETY FEATURES

Input / output separation PELV IEC/EN 60204-1, EN 62477-1, IEC 60364-4-41 double or reinforced insulation Class of protection I PE (Protective Earth) connection required Isolation resistance > 500MOhm At delivered condition between input and output,

> 500MOhm At delivered condition between input and PE,

> 500MOhm At delivered condition between output and PE,

> 500MOhm At delivered condition between output and DC-OK

PE resistance < 0.1Ohm Resistance between PE terminal and the housing in the

Touch current (leakage current) typ. 0.12mA / 0.31mA 100Vac, 50Hz, TN-,TT-mains / IT-mains typ. 0.18mA / 0.45mA 120Vac, 60Hz, TN-,TT-mains / IT-mains typ. 0.30mA / 0.76mA 230Vac, 50Hz, TN-,TT-mains / IT-mains max. 0.16mA / 0.38mA 110Vac, 50Hz, TN-,TT-mains / IT-mains max. 0.23mA / 0.55mA 132Vac, 60Hz, TN-,TT-mains / IT-mains max. 0.39mA / 0.94mA 264Vac, 50Hz, TN-,TT-mains / IT-mains

*) double or reinforced insulation

SELV IEC/EN 60950-1

measured with 500Vdc

contacts, measured with 500Vdc

area of the DIN-rail mounting bracket.

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Page 17

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

19. DIELECTRIC STRENGTH

The output voltage is floating and has no ohmic connection to the ground. Type and factory tests are conducted by the manufacturer. Field tests may be conducted in the field using the appropriate test equipment which applies the voltage with a slow ramp (2s up and 2s down). Connect all input-terminals together as well as all output poles before conducting the test. When testing, set the cut-off current settings to the value in the table below.

Fig. 19-1 Dielectric strength

Input DC-ok

B*) When testing input to DC-OK ensure that the max. voltage between DC-OK and the output is not exceeded (column D). We recommend

connecting DC-OK pins and the output pins together when performing the test.

Earth, PE

Output

Type test 60s 2500Vac 3000Vac 1000Vac 500Vac

Factory test 5s 2500Vac 2500Vac 500Vac 500Vac

Field test 5s 2000Vac 2000Vac 500Vac 500Vac

Cut-off current setting > 10mA > 10mA > 20mA > 1mA

To fulfil the PELV requirements according to EN60204-1 § 6.4.1, we recommend that either the + pole, the – pole or any other part of the output circuit shall be connected to the protective earth system. This helps to avoid situations in which a load starts unexpectedly or can not be switched off when unnoticed earth faults occur.

A B C D

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Page 18

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

20. APPROVALS

EC Declaration of Conformity

IEC 60950-1

Edition

2 planned

UL 508 planned

UL 60950-1

Edition

2 planned

ANSI / ISA 12.12.01-2007 Class I Div 2 planned

EN 60079-0, EN 60079-7 ATEX planned

IEC 60079-0, IEC 60079-7 planned

Marine planned

EAC TR Registration planned

IND. CONT. E

II 3G Ex eC nC II TX Gc

IECEx

24V, 20A, SINGLE PHASE INPUT

The CE mark indicates conformance with the

- EMC directive,

- Low-voltage directive and the

- ATEX directive planned CB Scheme,

Information Technology Equipment

Listed for use as Industrial Control Equipment; U.S.A. (UL 508) and Canada (C22.2 No. 107-1-01); E-File: E198865

Recognized for use as Information Technology Equipment, Level 5; U.S.A. (UL 60950-1) and Canada (C22.2 No. 60950-1); E-File: E137006 Applicable for altitudes up to 2000m.

Recognized for use in Hazardous Location Class I Div 2 TX Groups A,B,C,D systems; U.S.A. (ANSI / ISA 12.12.01-2007) and Canada (C22.2 No. 213-M1987)

Approval for use in hazardous locations Zone 2 Category 3G. Number of ATEX certificate: T.B.D. The power supply must be built-in in an IP54 enclosure.

Suitable for use in Class 1 Zone 2 Groups IIa, IIb and IIc locations. Number of IECEx certificate: T.B.D.

GL (Germanischer Lloyd) classified Environmental category: C, EMC2 Marine and offshore applications

Registration for the Eurasian Customs Union market (Russia, Kazakhstan, Belarus)

21. ROHS, REACH AND OTHER FULFILLED STANDARDS

RoHS Directive

REACH Directive

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

Directive 2011/65/EU of the European Parliament and the Council of June 8 certain hazardous substances in electrical and electronic equipment.

Directive 1907/2006/EU of the European Parliament and the Council of June 1 Evaluation, Authorisation and Restriction of Chemicals (REACH)

, 2011 on the restriction of the use of

, 2007 regarding the Registration,

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P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

22. PHYSICAL DIMENSIONS AND WEIGHT

Width 48mm 1.89’’ Height 124mm 4.88’’ Depth 127mm 5.0’’

The DIN-rail height must be added to the unit depth to calculate the total required

installation depth. Weight 830g / 1.83lb DIN-Rail Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm. Housing material Body: Aluminium alloy

Cover: zinc-plated steel Installation clearances See chapter 2

Fig. 22-1 Front view

CP20.241, CP20.241-C1 CP20.241-S1 CP20.241-S2

Fig. 22-2 Side view

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

19/27

Page 20

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

23. ACCESSORIES

23.1. UF20.241 BUFFER MODULE

This buffer unit is a supplementary device for DC 24V power supplies. It delivers power to bridge typical mains failures or extends the hold-up time after turn-off of the AC power. In times when the power supply provides sufficient voltages, the buffer unit stores energy in integrated electrolytic capacitors. In case of mains voltage fault, this energy is released again in a regulated process. One buffer module can deliver 20A additional current.

The buffer unit does not require any control wiring. It can be added in parallel to the load circuit at any given point. Buffer units can be added in parallel to increase the output ampacity or the hold-up time.

23.2. YR40.242 - REDUNDANCY MODULES

24V, 20A, SINGLE PHASE INPUT

Power

Supply

Buffer

Unit(s)

Load

The YR40.242 redundancy module is equipped with two input channels (each 20A), which are individually decoupled by utilizing MOSFET technology. The output current can be as high as 40A. Using MOSFETs instead of diodes reduces the heat generation and the voltage drop between input and output. The YR40.242 does not require an additional auxiliary voltage and is self-powered even in case of a short circuit across the output.

Due to the low power losses, the unit is very slender and only requires 36mm width on the DIN-rail.

Further information and wiring configurations can be found in chapter 24.7.

23.3. YR40.245 - REDUNDANCY MODULES

The YR40.245 is a 40A single channel redundancy module, which is equipped with a plug connector on the output. The plug connector allows replacing the power supply or the redundancy module while the system is running. The plug connector avoids that the output wires can touch and short the load circu

The YR40.245 is very slender and only requires 46mm width on the DIN-rail. It also utilizes MOSFET technology instead of diodes for low heat generation and a minimal voltage drop between input and output. It does not require an additional auxiliary voltage and is selfpowered even in case of a short circuit across the output.

Further information and wiring configurations can be found in chapter 24.7.

it.

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

20/27

Page 21

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

23.4. ZM5.WALL – WALL/PANEL MOUNT BRACKET

This bracket is used to mount the devices on a wall/panel without utilizing a DIN-Rail. It is suitable for CP20.241, CP20.241-C1, CP20.241-S1 and CP20.241-S2.

The bracket can be mounted without detaching the DIN-rail brackets.

Fig. 23-1 Isometric view

(Picture shows the CP20.241)

Fig. 23-2 Isometric view-

(Picture shows the CP20.241)

24V, 20A, SINGLE PHASE INPUT

Fig. 23-3 Isometric view

(Picture shows the CP20.241)

Fig. 23-4 Wall/panel mounting,

front view

(Picture shows the CP20.241)

Fig. 23-5 Hole pattern for wall

mounting

Fig. 23-6 Wall/panel mounting,

side view

(Picture shows the CP20.241)

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

21/27

Page 22

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

24. APPLICATION NOTES

24.1. PEAK CURRENT CAPABILITY

The unit can deliver peak currents (up to several milliseconds) which are higher than the specified short term currents. This helps to start current demanding loads. Solenoids, contactors and pneumatic modules often have a steady state

coil and a pick-up coil. The inrush current demand of the pick-up coil is several times higher than the steady-state current and usually exceeds the nominal output current (including the PowerBoost). The same situation applies when starting a capacitive load.

The peak current capability also ensures the safe operation of subsequent circuit breakers of load circuits. The load branches are often individually protected with circuit breakers or fuses. In case of a short or an overload in one branch circuit, the fuse or circuit breaker need a certain amount of over-current to open in a timely manner. This avoids voltage loss in adjacent circuits.

The extra current (peak current) is supplied by the power converter and the built-in large sized output capacitors of the power supply. The capacitors get discharged during such an event, which causes a voltage dip on the output. The following examples show typical voltage dips:

Fig. 24-1 Peak load with 2x the nominal

24V

current for 50ms, typ.

40A

Output Voltage

16V

Fig. 24-2 Peak load with 5x the nominal

24V

current for 5ms, typ.

100A

Output Voltage

17V

Output Current

Output

10ms/DIV

40A Peak load (resistive) for 50ms Output voltage dips from 24V to 16V.

Current

1ms/DIV

100A Peak load (resistive) for 5ms Output voltage dips from 24V to 17V.

Fig. 24-3 60A Peak load for 12ms, typ.

24V

20V

60A

12ms

Output Voltage

Output Current

Please note: The DC-OK relay triggers when the voltage dips more than 10% for longer than 1ms.

Peak current voltage dips typ. from 24V to 16V At 40A for 50ms, resistive load typ. from 24V to 21V At 100A for 2ms, resistive load typ. from 24V to 17V At 100A for 5ms, resistive load

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

22/27

Page 23

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

24.2. BACK-FEEDING LOADS

Loads such as decelerating motors and inductors can feed voltage back to the power supply. This feature is also called return voltage immunity or resistance against Back- E.M.F. (E

This power supply is resistant and does not show malfunctioning when a load feeds back voltage to the power supply. It does not matter whether the power supply is on or off.

The maximum allowed feed-back-voltage is 35Vdc. The absorbing energy can be calculated according to the built-in large sized output capacitor which is specified in chapter 6.

lectro Magnetic Force).

24.3. EXTERNAL INPUT PROTECTION

The unit is tested and approved for branch circuits up to 30A (UL) and 32A (IEC). An external protection is only required if the supplying branch has an ampacity greater than this. Check also local codes and local requirements. In some countries local regulations might apply.

If an external fuse is necessary or utilized, minimum requirements need to be considered to avoid nuisance tripping of the circuit breaker. A minimum value of 10A B- or C-Characteristic breaker should be used.

24.4. OUTPUT CIRCUIT BREAKERS

Standard miniature circuit breakers (MCB’s or UL 1077 circuit breakers) are commonly used for AC-supply systems and may also be used on 24V branches.

MCB’s are designed to protect wires and circuits. If the ampere value and the characteristics of the MCB are adapted to the wire size that is used, the wiring is considered as thermally safe regardless of whether the MCB opens or not.

To avoid voltage dips and under-voltage situations in adjacent 24V branches which are supplied by the same source, a fast (magnetic) tripping of the MCB is desired. A quick shutdown within 10ms is necessary corresponding roughly to the ride-through time of PLC's. This requires power supplies with high current reserves and large output capacitors. Furthermore, the impedance of the faulty branch must be sufficiently small in order for the current to actually flow. The best current reserve in the power supply does not help if Ohm’s law does not permit current flow. The following table has typical test results showing which B- and C-Characteristic MCBs magnetically trip depending on the wire cross section and wire length.

Power Supply

S1... Fault simulation switch

*) Don’t forget to consider twice the distance to the load (or cable length) when calculating the total wire length (+ and – wire).

Fig. 24-4 Test circuit

MCB

Wire length

Maximal wire length

C-2A C-3A C-4A

Load

C-6A C-8A C-10A C-13A

0.75mm² 1.0mm² 1.5mm² 2.5mm²

B-6A B-10A B-13A B-16A B-20A B-25A

for a fast (magnetic) tripping:

31 m 37 m 63 m 98 m 28 m 34 m 51 m 78 m 18 m 25 m 38 m 58 m

9 m 11 m 18 m 26 m 6 m 7 m 12 m 14 m 4 m 6 m 11 m 13 m 2 m 2 m 4 m 7 m

23 m 28 m 46 m 66 m 11 m 14 m 19 m 32 m

7 m 11 m 16 m 29 m 5 m 6 m 8 m 15 m 1 m 1 m 2 m 4 m

1 m

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

24.5. SERIES OPERATION

Power supplies of the same type can be connected in series for higher output voltages. It is possible to connect as many units in series as needed, providing the sum of the output voltage does not exceed 150Vdc. Voltages with a potential above 60Vdc are not SELV any more and can be dangerous. Such voltages must be installed with a protection against touching.

Avoid return voltage (e.g. from a decelerating motor or battery) which is applied to the output terminals.

Keep an installation clearance of 15mm (left / right) between two power supplies and avoid installing the power supplies on top of each other. Do not use power supplies in series in mounting orientations other than the standard mounting orientation (input terminals on bottom of the unit).

Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple power supplies.

Unit A

Input

Output

Unit B

Input

Output

24.6. PARALLEL USE TO INCREASE OUTPUT POWER

Load

CP20 power supplies can be paralleled to increase the output power. The output voltage of all power supplies shall be adjusted to the same value (±100mV) in “Single use” mode with the same load conditions on all units, or the units can be left with the factory settings. After the adjustments, set the unit to “Parallel use” mode, in order to achieve load sharing. The “Parallel use” mode regulates the output voltage in such a manner that the voltage at no load is approx. 4% higher than at nominal load. See also chapter 6.

If more than three units are connected in parallel, a fuse or circuit breaker with a rating of 30A or 32A is required on each output. Alternatively, a diode or redundancy module can also be utilized.

PLUS

Energize all units at the same time to avoid the overload Hiccup also might be necessary to cycle the input power (turn-off for at least five seconds), if the output was in Hiccup mode due to overload or short circuits and the required output current is higher than the current of one unit.

Keep an installation clearance of 15mm (left / right) between two power supplies and avoid installing the power supplies on top of each other. Do not use power supplies in parallel in mounting orientations other than the standard mounting orientation (input terminals on bottom of the unit) or in any other condition where a derating of the output current is required (e.g. altitude, above 60°C, …).

Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple power supplies.

mode. It

Unit A

Input

Output

Unit B

Input

Output

Load

PLUS

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Page 25

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

24.7. PARALLEL USE FOR REDUNDANCY

CP20 power supplies can be paralleled for redundancy to gain higher system availability. Redundant systems require a certain amount of extra power to support the load in case one power supply unit fails. The simplest way is to put two power supplies in parallel. This is called a 1+1 redundancy. In case one power supply unit fails, the other one is automatically able to support the load current without any interruption. Redundant systems for a higher power demand are usually built in a N+1 method. E.g. five power supplies, each rated for 20A are paralleled to build a 80A redundant system. For N+1 redundancy the same restrictions apply as for increasing the output power, see also chapter 24.6.

Please note: Always use a redundancy module to decouple power supplies from each other or use power supplies with built in redundancy like the CP20.241-R1 (spring-clamp terminals), the CP20.241-R2 (plug connectors for hot swap) or the CP20.241-R3 (screw terminals). This prevents that the defective unit becomes a load for the other power supplies and the output voltage cannot be maintained any more.

Recommendations for building redundant power systems: a) Use separate input fuses for each power supply.

b) Set the power supply into “Parallel use” mode. c) Monitor the individual power supply units. Therefore, use the DC-OK relay contact of the CP20 power supply. d) It is desirable to set the output voltages of all units to the same value (± 100mV) or leave it at the factory setting.

Fig. 24-5 1+1 Redundant configuration for 20A with one

dual redundancy module

24V, 20A

Load

Failure

Monitor

Fig. 24-6 1+1 Redundant configuration for 20A with multiple YR40.245

redundancy modules

Failure

Monitor

24V, 20A

Load

+ +

- - -

Output

Adj.

DC-OK

DCOK

CP20.241

Power Supply

Input

L N PE

I I

YR40.241

Output

YR40.242

Redundancy Module

Input1Input

+-+

also possible

+ +

- - -

Output

Adj.

DC-OK

DCOK

CP20.241

Power Supply

Input

L N PE

+ +

- - -

Output

Adj.

DC-OK

DCOK

CP20.241

Power Supply

Input

L N PE

I I

L N

Output

YR40.245

Redundancy

Module

Input

+ +

- - -

Output

Adj.

DC-OK

DCOK

CP20.241

Power Supply

Input

L N PE

Output

YR40.245

Redundancy

Module

Input

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

25/27

Page 26

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

24.8. INDUCTIVE AND CAPACITIVE LOADS

The unit is designed to supply any kind of loads, including capacitive and inductive loads. If extreme large capacitors, such as EDLCs (electric double layer capacitors or “UltraCaps”) with a capacitance > 1F are connected to the output, the unit might charge the capacitor in the Hiccup

PLUS®

mode (see chapter 6).

24.9. CHARGING OF BATTERIES

The power supply can be used to charge lead-acid or maintenance free batteries. Two 12V SLA or VRLA batteries are needed in series connection.

Instructions for charging batteries:

a) Set output voltage (measured at no load and at the battery end of the cable) very precisely to the end-of-charge

voltage.

End-of-charge voltage 27.8V 27.5V 27.15V 26.8V

Battery temperature 10°C 20°C 30°C 40°C

b) Use a 30A or 32A circuit breaker (or blocking diode) between the power supply and the battery. c) Ensure that the output current of the power supply is below the allowed charging current of the battery. d) Ensure that the ambient temperature of the power supply stays below 40°C. e) Use only matched batteries when putting 12V types in series. f) The return current to the power supply (battery discharge current) is typ. 3.5mA when the power supply is

switched off (except in case a blocking diode is utilized).

24.10. OPERATION ON TWO PHASES

The power supply can also be used on two-phases of a three-phasesystem. Such a phase-to-phase connection is allowed as long as the supplying voltage is below 240V

+10%

max.

+10%

240V

Power Supply

24.11. USE IN A TIGHTLY SEALED ENCLOSURE

When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher than outside. In such situations, the inside temperature defines the ambient temperature for the power supply.

The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure. The power supply is placed in the middle of the box, no other heat producing items are inside the box Enclosure: Rittal Typ IP66 Box PK 9519 100, plastic, 180x180x165mm

Load: 24V, 16A; (=80%) load is placed outside the box Input: 230Vac Temperature inside enclosure: 51.7°C (in the middle of the right side of the power supply with a distance of 2cm) Temperature outside enclosure: 25.9°C Temperature rise: 25.8K

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Page 27

P R E L I M I N A R Y

CP20.241, CP20.241-C1,

CP20.241-S1, CP20.241-S2

CP-Series

24V, 20A, SINGLE PHASE INPUT

24.12. MOUNTING ORIENTATIONS

Mounting orientations other than all terminals on the bottom require a reduction in continuous output power or a limitation in the maximum allowed ambient temperature. The amount of reduction influences the lifetime expectancy of the power supply. Therefore, two different derating curves for continuous operation can be found below:

Curve A1 Recommended output current. Curve A2 Max allowed output current (results in approximately half the lifetime expectancy of A1).

Fig. 24-7 Mounting Orientation A

(Standard orientation)

Fig. 24-8

Mounting Orientation B

(Upside down)

OUTPUT

Power

Supply

INPUT

Supply Power

OUTPUT

Fig. 24-9

Mounting Orientation C

(Table-top mounting)

Fig. 24-10

Mounting Orientation D

(Horizontal cw)

Supply

INPUT

OUTPUT

Power

Fig. 24-11

Mounting Orientation E

(Horizontal ccw)

Supply

INPUT

OUTPUT

Power

Output Current

24A

Ambient Temperature

10 20 30 40

Output Current

24A

Ambient Temperature

10 20 30 40

Output Current

24A

Ambient Temperature

10 20 30 40

Output Current

24A

Ambient Temperature

10 20 30 40

Output Current

24A

Ambient Temperature

10 20 30 40

60°C

May 2017 / Rev. 0.3 DS-CP20.241-EN All parameters are typical values specified at 24V, 20A output, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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