Puls DIMENSION CP20.248, Dimension CP Series Manual

CP-Series

CP20.248

24V, 20A, 480W, S INGLE P HASE

P

RODUCT

D

ESCRIPTION

The CP20.248 is a DIN-rail mountable single-phase-input power supply, which provides a floating, stabilized and galvanically separated SELV/PELV output voltage.

The device has a condition display integrated which shows realtime and recorded data informing about the condition of the power supply and the power line.

A DC OK signal, an alarm signal and remote ON/OFF make the unit suitable for many applications, where preventive function monitoring and remote control can help to avoid costly downtimes.

The device has a power reserve of 20% included, which may even be used continuously up to +45°C. Additionally it can deliver 3 times the nominal output current for 12ms, which helps to trip fuses on faulty output branches.

The device is equipped with a “Sing le Use / Parallel Use” feature, which enables a load sharing between power supplies when they are connected in parallel.

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

O

RDER

N

UMBERS

Power Supply CP20.248

Mechanical Accessory

ZM10.WALL

Wall/Panel mount bracket

P

OWER

S

UPPLY

▪ AC 100-240V Wide-range input

▪ Width only 48mm

▪ Display for condition monitoring and easy analysis of power errors

▪ Efficiency up to 95.6%

▪ 20% output power reserves

▪ Easy Fuse Breaking – 3 times nominal current for 12ms

▪ Safe Hiccup PLUS Overload Mode

▪ Full power between -25°C and +60°C

▪ DC OK relay contact

▪ ALARM relay contact

▪ Remote ON/OFF functionality

▪ Current sharing feature for parallel use

▪ 3 Year Warranty

S

HORT

-

FORM

D

ATA

Output voltage

Adjustment range

DC 24V

24 - 28V

Nominal

Factory setting 24.1V

Output current 24.0 - 20.6A

20.0 – 17.1A

15.0 – 13.0A

Below +45°C ambient

At +60°C ambient

At +70°C ambient

Derate between +45°C and +70°C

Input voltage AC

Mains frequency

Input current AC

AC 100-240V

50-60Hz

4.26 / 2.23A

-15%/+10%

±6%

At 120 / 230Vac

Power factor

Input voltage DC

Input current DC

AC Inrush current

Efficiency

Losses

Hold-up time

Temperature range

Size (WxHxD)

Weight

0.99 / 0.98

DC 110-150V

4.64A

10.0 / 4.5Apk

94.2 / 95.6%

29.6 / 22.1W

At 120 / 230Vac

±20%

At 110Vdc

At 120 / 230Vac

At 120 / 230Vac

At 120 / 230Vac

32/ 32ms

-25°C to +70°C

At 120 / 230Vac

48x124x127mm Without DIN-rail

835g / 1.84lb

M

AIN

A

PPROVALS

For details or a complete approval list see section 22.

IEC 61010-2-201

(planned)

May 2020 / Rev 0.1 DS-CP20.248-EN All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 20A output load,

25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany

1/33

CP-Series

CP20.248


I

NDEX

Page

1.

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

2.

Installation Instructions ................................................ 4

3.

AC-Input ....................................................................... 5

4.

DC-Input ....................................................................... 6

5.

Input Inrush Current ..................................................... 6

6.

Output .......................................................................... 7

7.

Hold-up Time ................................................................ 9

8.

DC OK Relay Contact .................................................... 9

9.

Power Supply Condition Display ................................. 10

10.

Remote ON / OFF Function ........................................ 12

11.

“Alarm“ Relay Contact ................................................ 12

12.

Efficiency and Power Losses ....................................... 13

13.

Functional Diagram .................................................... 14

14.

Front Side and User Elements .................................... 15

15.

Connection Terminals ................................................ 16

16.

Lifetime Expectancy ................................................... 17

17.

MTBF .......................................................................... 17

18.

EMC ............................................................................ 18

19.

Environment ............................................................... 20

20.

Safety and Protection Features .................................. 21

21.

Dielectric Strength ...................................................... 22

Page

22.

Approvals ................................................................... 23

23.

Regulatory Compliance .............................................. 23

24.

Physical Dimensions and Weight ............................... 24

25.

Accessories................................................................. 25

25.1.

ZM10.WALL – Wall/Panel Mount Bracket ........ 25

25.2.

UF20.241 Buffer Module .................................. 26

25.3.

YR40.241 - Redundancy Module ...................... 26

25.4.

YR40.242 - Redundancy Module ...................... 26

25.5.

YR40.245 - Redundancy Modules ..................... 27

26.

Application Notes....................................................... 28

26.1.

Peak Current Capability .................................... 28

26.2.

Output Circuit Breakers .................................... 29

26.3.

Charging of Batteries ........................................ 30

26.4.

Series Operation ............................................... 30

26.5.

Parallel Use to Increase Output Power ............ 30

26.6.

Parallel Use for Redundancy ............................ 31

26.7.

Operation on Two Phases ................................ 32

26.8.

Use in a Tightly Sealed Enclosure ..................... 32

26.9.

Mounting Orientations ..................................... 33

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.

Packaging and packaging aids can and should always be recycled. The product itself may not be disposed of as domestic refuse.

T

ERMINOLOGY AND

A

BREVIATIONS

PE and symbol

Earth, Ground

T.b.d.

AC 230V

230Vac

50Hz vs. 60Hz may shall should

PE is the abbreviation for P rotective E arth and has the same meaning as the symbol .

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

To be defined, value or description will follow later.

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)

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

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

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

A key word indicating a mandatory requirement.

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



2/33

CP-Series

CP20.248


1.

I

NTENDED

U

SE

This device is designed for installation in an enclosure and is intended for commercial use, such as in industrial control, process control, monitoring and measurement equipment or the like.

Do not use this device in equipment, where malfunctioning may cause severe personal injury or threaten human life without additional appropriate safety devices, that are suited for the end-application.

If this device is used in a manner outside of its specification, the protection provided by the device may be impaired.

Without additional measures to reduce the conducted emissions on the output (e.g. by using a filter), the device is not suited to supply a local DC power network in residential, commercial and light-industrial environments. No restrictions apply for local DC power networks in industrial environments.



3/33

CP-Series

CP20.248


2.

I

NSTALLATION

I

NSTRUCTIONS

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

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

- 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.

Obey the following installation instructions:

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.

Install the device in an enclosure providing protection against electrical, mechanical and fire hazards.

Install the device onto a DIN-rail according to EN 60715 with the input terminals on the bottom of the device. Other mounting orientations require a reduction in output current.

Make sure that the wiring is correct by following all local and national codes. Use appropriate copper cables that are designed for a minimum operating temperature of 60°C for ambient temperatures up to +45°C, 75°C for ambient temperatures up to +60°C and 90°C for ambient temperatures up to +70°C. Ensure that all strands of a stranded wire enter the terminal connection. Use ferrules for wires on the input terminals. Unused screw terminals should be securely tightened.

The device is designed for pollution degree 2 areas in controlled environments. No condensation or frost is allowed.

The enclosure of the device provides a degree of protection of IP20. The housing does not provide protection against spilled liquids.

The device is desig ned as “Class of Protection I” equipment according to IEC 61140. Do not use without a proper PE ( Protective Earth) connection.

The device is suitable to be supplied from TN, TT or IT mains networks. The continuous voltage between the input terminals and the PE potential must not exceed 300Vac.

The input can also be powered from a battery or a similar DC source. The continuous voltage between the supply voltage and the

PE/ground potential must not exceed 375Vdc.

A disconnecting means shall be provided for the input of the device.

The device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do not cover ventilation grid!

The device is designed for altitudes up to 5000m (16400ft). Above 2000m (6560ft) a reduction in output current and over voltage category is required.

Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and right side. Increase the 5mm to

15mm in case the adjacent device is a heat source. When the device is permanently loaded with less than 50%, the 5mm can be reduced to zero.

The device is designed, tested and approved for branch circuits up to 32A (IEC) and 30A (UL) without additional protection device. If an external fuse is utilized, do not use circuit breakers smaller than 10A B- or C-Characteristic to avoid a nuisance tripping of the circuit breaker.

The maximum surrounding air temperature is +70°C (+158°F). The operational temperature is the same as the ambient or surrounding air temperature and is defined 2cm below the device.

The device is designed to operate in areas between 5% and 95% relative humidity.



4/33

CP20.248

24V, 20A, 480W, S INGLE P HASE CP-Series

3.

AC-I

NPUT

The device is suitable to be supplied from TN, TT or IT mains networks.

AC input

AC input range

Allowed voltage L or N to earth

Input frequency

Turn-on voltage

Shut-down voltage

External input protection nom. AC 100-240V

85-264Vac

264-300Vac

Continuous operation

Occasionally for maximal 500ms max. 300Vac nom. 50 – 60Hz typ. typ.

82Vac

72Vac

Continuous, according to IEC 60664-1

±6%

Steady-state value, see Fig. 3-1

Steady-state value, see Fig. 3-1

See recommendations in chapter “Insta llation Instructio ns” .

Input current

Power factor

Crest factor *)

Start-up delay

Rise time

Turn-on overshoot typ. typ. typ. typ. typ. typ. max.

AC 100V

5.15A

0.996

1.65

450ms

145ms

160ms

200mV

AC 120V

4.26A

0.996

1.63

450ms

145ms

160ms

200mV

AC 230V

2.23A

0.980

1.63

450ms

145ms

160ms

200mV

At 24V, 20A, see Fig. 3-3


At 24V, 20A, The crest factor is the mathematical ratio of the peak value to

RMS value of the input current waveform.

See Fig. 3-2

At 24V, 20A const. current load, 0mF

load capacitance, see Fig. 3-2

At 24V, 20A const. current load, 20mF

load capacitance, see Fig. 3-2

In single use mode, see Fig. 3-2

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

P

OUT

Rated input range max.

500ms

Input

Voltage

V

IN

85V 264V 300Vac

Fig. 3-3 Input current vs. output current at 24V output voltage

3

2

1

0

Input Current, typ.

6A

5

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

Output Current a b c

2 4 6 8 10 12 14 16 18 20 22 24A

Output

Voltage

- 5%

Start-up delay

Rise

Time

Fig. 3-4 Power factor vs. output current at 24V output voltage

Power Factor, typ.

1.0

a, b c

0.95

0.9

0.85

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

0.8

Output Current

0.75

2 4 6 8 10 12 14 16 18 20 22 24A



5/33

CP-Series

CP20.248


4.

DC-I

NPUT

The device is suitable to be supplied from a DC input voltage. 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.

Connect +pole to L, – pole to N and the PE terminal to an earth wire or to the machine ground.

DC input

DC input range

DC input current nom. typ.

DC 110-150V

88-180Vdc

4.64A

±20%

Continuous operation

At 110Vdc, at 24V, 20A

Turn-on voltage

Shut-down voltage typ. typ.

80Vdc

70Vdc

Steady state value

Steady state value

Battery

Fig. 4-1 Wiring for DC Input

Power Supply

AC

+

L

N +

Load

PE

-

-

DC

5.

I

NPUT

I

NRUSH

C

URRENT

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.

AC 100V AC 120V AC 230V

Inrush current

Inrush energy max. typ. max.

15A peak

12A peak

1A 2 s

12A peak

10A peak

1A 2 s

5.5A

peak

4.5A

peak

1A 2 s

Temperature independent



Fig. 5-1 Typical turn-on behavior at nominal load and

25°C ambient

Input Current 5A / DIV

Input

230Vac

24Vdc

Output

100mS/DIV



6/33

CP-Series

CP20.248


6.

O

UTPUT

The output provides a SELV/PELV rated voltage, which is galvanically isolated from the input voltage.

The output is electronically protected against no-load, overload and short circuit. In case of a protection event, audible noise may occur.

The output is designed to supply any kind of loads, including inductive and capacitive loads. If capacitors with a capacitance >1F are connected, the unit might charge the capacitor in an intermittent mode.

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.

The device is equipped with a “Single Use / Parallel Use” feature, which can be selected on the front of the unit. 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. This achieves a load sharing between power supplies when they are connected in parallel.

Output voltage

Adjustment range

Factory setting output voltage

Line regulation

Load regulation

Ripple and noise voltage

Output current

Fuse breaking current

Overload behavior

Overload/ short-circuit current

Output capacitance nom. min. max.

24V

24-28V

30V

Guaranteed value

This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances.

It is not a guaranteed value which can be achieved.

±0.2% in “single use” mode at full load, cold unit typ. typ.

24.1V

24.1V ±0.2% in “parallel use” mode at 20A, cold unit (results to 23.9V

±0.2% at 24A and 25.1V ±0.2% at no load)

Between 85 and 300Vac input voltage change max. 10mV max. typ.

100mV

1000mV

Between 0 and 24A in “ single use” mode, static value

Between 0 and 20 A in “pa rallel use” mo de, static value

Bandwidth 20Hz to 20MHz, 50Ohm max. 50mVpp nom. 24A nom. 20A

1) nom. 15A nom. 20.6A

1) nom. nom. typ.

17.1A

13A

At 24V and an ambient temperature below 45°C

At 24V and 60°C ambient temperature


At 28V and an ambient temperature below 45°C



Derate linearly between +45°C and +70°C

60A

Up to 12ms once every five seconds, see Fig. 6-4.

The fuse braking current is an enhanced transient current which helps to trip fuses on faulty output branches. The output voltage stays above 20V.

Continuous current

Intermittent current max. 29.8A typ. 29A max. typ.

9.8A

8 500µF

For output voltage above 13Vdc, see Fig. 6-1

For output voltage below 13Vdc, see Fig. 6-1

Continuous current, see Fig. 6-1

Intermitted current peak value for typ. 2s

Load impedance 10mOhm, see Fig. 6-3

Discharge current of output capacitors is not included.

Intermitted current average value (R.M.S.)

Load impedance 10mOhm, see Fig. 6-3

Included inside the power supply



7/33

CP-Series 24V, 20A,

CP20.248

480W, S INGLE P HASE

Back-feeding loads Max. 35V The unit 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 absorbing energy can be calculated according to the built-in large sized output capacitor.

1) This current is also available for temperatures up to +70°C with a duty cycle of 10% and/ or not longer than 1 minute every 10 minutes.

Fig. 6-1 Output voltage vs. output current, typ. Fig. 6-2 Output voltage in “parallel use” mode, typ.

Output Voltage (Single Use, typ.)

28V

24

20

16

12

8

4

0

A: continuous current

B: intermitted current

Output Current

0 5 10 15 20 25

Adjustment

Range

A

B

30 35 40A

Output Voltage (Parallel Use, typ.)

29V

28V

27V

26V

25V

24V

23V

22V

Factory setting

Adjustment

Range

Output Current

0 4 8 12 16 20 24A

Fig. 6-3 Short-circuit on output, Hiccup PLUS ® mode, typ. Fig. 6-4 Dynamic overcurrent capability, typ.

Output

Current

Normal operation

29A

0

2s 18s

Short -circuit

2s 18s 2s 18s

Normal operation t

Output Voltage (dynamic behavior, < 12ms)

28V

24

20

16

Adjustment

Range

12

8

4

0

Output Current

0 10 20 30 40 50 60 70A



8/33

CP-Series

CP20.248


7.

H

OLD

-

UP

T

IME

The holdup time is the time during which a power supply’s output voltage remains within specificatio n following the loss of input power. The hold-up time is output load dependent. At no load, the hold-up time can be up to several seconds. The green DC OK lamp is also on during this time.

Hold-up Time typ.

AC 100V

65ms

AC 120V

65ms

AC 230V

65ms


min. typ. min.

54ms

32ms

24ms

54ms

32ms

24ms

54ms

32ms

24ms




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

0

85 120

24V, 10A, typ.

24V, 10A, min.

24V, 20A, typ.

24V, 20A, min.

Input Voltage

155 190 230Vac

8.

DC OK R

ELAY

C

ONTACT

Input

Voltage

Output

Voltage

Zero Transition

Hold-up Time

- 5%

This feature monitors the output voltage on the output terminals of a running power supply.

The DC OK relay contact is not synchronized with the DC OK Led.

Contact closes As soon as the output voltage reaches 22V.

Contact opens

Switching hysteresis

Contact ratings

As soon as the output voltage dips below 22V.

Short dips will be extended to a signal length of 100ms. Dips shorter than 1ms will be ignored.

Typically 0.7V

Isolation voltage

Maximal 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A, resistive load

Minimal permissible load: 1mA at 5Vdc

See chapter “Dielectric Strength” .

Fig. 8-1 DC OK relay contact behavior

Output Voltage

22V open closed



9/33

CP-Series

CP20.248


9.

P

OWER

S

UPPLY

C

ONDITION

D

ISPLAY

The device has an integrated Power Supply Condition Display (PSCD), which shows power supply condition values on front of the unit.

When the power supply is powered on, all LED segments of the PSCD are switched on for 2 seconds to indicate that all segments of the display are fully-functional.

Located on the right side of the PSCD, a Status Indicator, consisting of three LEDs, shows the basic operation status of the power supply unit:

- Alarm

- OFF

- DC OK by red color by yellow color by green color

When the input voltage has been switched off, the output power will remain present for a short period of time until the hold-up-time has elapsed. The internal supply for the Power Supply Condition Display lasts much longer and during that period the display will show

“ OFF ” flashing. After the next turn-on procedure, the PSCD shows the same menu as selected before the last turn-off sequence.

For the navigation throug h the Power Supply Condition Display modes, a single “Display” push -button is used.

Navigation through Real-Time and Recorded Data Mode

For data acquisition, the device includes a “ Real-time Data Mode ” and a “ Recorded Data Mode ”, both running continuously in parallel.

The “Real -time Data Mode ” provides information on current operating data of the unit, while the “ Recorded Data Mode ” provides stored data from previous events.

Press the Display push button repeatedly to browse through either the “ Real-time Data ” or the “ Recorded Data ”. When “ PRESS 2 SEC

FOR PAGE 1 OR 2 ” is displa yed, the modes can be selected by pressing the Display push-button longer than 2 seconds.

Available data in “Real time Data Mode”:

- Input voltage as RMS value [V]

- Output voltage [V]

- Output current [A]

- Temperature measured close to switching power components [°C]

- Total operating hours [khrs]

Available data in “Re corded Data Mode”:

- Minimum RMS input voltage [V]

- Maximum RMS input voltage [V]

- Number of undershoot transient events on input voltage [Number of events]

- Number of over-voltage transient events on input voltage [Number of events]

- Maximum output voltage [V]

- Maximum output current [A]

- Minimum temperature measured close to switching power components [°C]

- Maximum temperature measured close to switching power components [°C]

Please note: Minimum and Maximum values will be updated continuously until reset by the user.

In the “ Recorded Data Mode ” each of the non-volatile stored values can be reset to current values by the user by holding the Display push button. After 2 seconds a flashing value warns that it will be reset if the button will be kept pressed. See the following procedure:



10/33

CP-Series 24V, 20A,

CP20.248

480W, S INGLE P HASE

Error Codes

In the event of an external error, the “Alar m con tact” is clo sed and the status indicator shows “Alarm”. Error details are displayed in the denomination field and in the running text, which provides an error code.

- “Err2” = Over-temperature protection primary side

- “E rr4 ” = Overload protection

- “ Err5 ” = Over -temperature protection secondary side

- “E rr6 ” = Output over -voltage protection

If the error is cleared, the “ Power Supply Condition Display ” returns to the display mode, which was selected before. T he “Alarm contact ” opens and the “Alarm” in dicator light goes off.

An event counter stores the number of each individual error to provide data for a later failure analysis.

Fig. 9-1 Power Supply Condition Display Fig. 9-2 Mode loops at a glance

Fig. 9-3 Error codes



11/33

CP-Series

CP20.248


10.

R

EMOTE

ON / OFF F

UNCTION

This feature enables the output to switch off by signal input.

A link between pin 15 and 16 turns the power supply off. Pin 15 is referenced to the (-) output voltage.

When multiple power supplies are connected in parallel, pin 15 and pin 16 are also allowed to be paralleled to control all units with the same switch or transistor.

Please note: The remote ON/OFF function has no safety feature included.

Fig. 10-1 The switch-off and the turn-on timing

>1s

<1s

Remote

ON/OFF

15-16 linked

15-16 open

16

15

Remote

ON/OFF

Output

Voltage

C C

A B 1s A B

Time

A:

Turn-on delay according to Fig. 3-2

B:

Rise time according to Fig. 3-2

C: No active discharge of the output after switch-off

Pulses shorter than 1s will be extended to 1s

11.

“A

LARM

“

R

ELAY

C

ONTACT

This feature monitors the device and reports an over temperature, output overload, output over voltage or internal failure.

The Alarm relay contact is synchronized with the Alarm LED of the power supply condition display.

Contact closes

Contact opens

Contact ratings

Isolation voltage

As soon as a failure is present.

As soon as the failure disappears.

Maximal 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A, resistive load

Minimal permissible load: 1mA at 5Vdc

See chapter “Dielectric Strength” .



12/33

CP-Series

CP20.248


12.

E

FFICIENCY AND

P

OWER

L

OSSES

Efficiency

Average efficiency typ. typ. typ.

AC 100V

93.6%

93.5%

93.2%

AC 120V

94.2%

94.1%

93.8%

AC 230V

95.6%

95.5%

95.0%

At 24V, 20A

At 24V, 24A (Power Boost)

25% at 5A, 25% at 10A,

25% at 15A. 25% at 20A

Power losses typ. typ. typ. typ.

1.5W

2.8W

16.8W

32.8W

1.5W

2.8W

15.7W

29.6W

1.6W

3.0W

12.7W

22.1W in “ Remote OFF

At 24V, 0A

At 24V, 10A

At 24V, 20A

” mode 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. 12-1 Efficiency vs. output current at 24V, typ. Fig. 12-2 Losses vs. output current at 24V, typ.

Efficiency

96%

95

94

93

92

91

90

88

87

Output Current

4 6 8 10 12 14 16

(a) 100Vac

(b) 120Vac

(c) 230Vac

18 20 22

(c)

(b)

(a)

24A

Power Losses

40W

35

30

25

20

15

10

5

0

(a) 100Vac

(b) 120Vac

(c) 230Vac

Output Current

0 2 4 6 8

(a)

(b)

(c)

10 12 14 16 18 20 22 24A

Fig. 12-3 Efficiency vs. input voltage at 24V, 20A, typ.

Efficiency

96%

95

94

93

92

91

90

Input Voltage

100 120 180 230 264Vac

Fig. 12-4 Losses vs. input voltage at 24V, 20A, typ.

Power Losses

40W

35

30

25

20

15

10

100 120

Input Voltage

180 230 264Vac



13/33

CP-Series

13.

F

UNCTIONAL

D

IAGRAM

L

N

In p u t F u s e

In p u t F ilt e r

In p u t R e c t if ie r

In r u s h C u r r e n t

L im it e r

P F C

C o n v e r t e r

Fig. 13-1 Functional diagram

P o w e r

C o n v e r t e r

O u t p u t

F ilt e r

1 7

O u t p u t

V o lt a g e

R e g u la t o r

1 8

T e m p e r a t u r e

S h u t d o w n

O u t p u t

P o w e r

M a n a g e r

O u t p u t

O v e r -

V o lt a g e

P r o t e c t o r

C o n d it io n

M o n it o r

A la r m

R e la y

D C O K

R e la y

R e m o t e

O N / O F F

1 1

1 2

1 3

1 4

1 5

1 6

-

-

-

+

+

L in k f o r

P a r a lle l U s e

V

O U T

D C O K L E D

O F F L E D

A la r m L E D

D is p la y

A la r m C o n t a c t

D C O K C o n t a c t

L in k e d : O F F

O p e n : O N

D is p la y p u s h b u t t o n

CP20.248




14/33

CP-Series

CP20.248


14.

F

RONT

S

IDE AND

U

SER

E

LEMENTS

Fig. 14-1 Front side

A Output Terminals

Three terminals for the negative and two terminals for the positive pole. Poles are internally connected.

+ Positive output

Negative (return) output

B Input Terminals

L Phase (Line) input

N Neutral conductor input

PE (Protective Earth) input

C Power Supply Condition Display

See description below

D Output Voltage Adjustment Potentiometer

E Display Push Button

This push-button can be used to navigate through the display menus and to select either the Real-time Mode or the Recorded Data Mode.

F Alarm Relay Contact

The alarm relay contact reports an over temperature, output overload, output over voltage or internal failure. The Alarm relay contact is synchronized with the Alarm LED of the power supply condition display.

See chapter “ Alarm Relay Contact ” for details.

G DC OK Relay Contact

This feature monitors the output voltage on the output terminals of a running power supply. The DC OK relay contact is synchronized with the DC OK Led of the power supply condition display.

See chapter “ DC OK Relay Contact ” for details.

H Remote ON/OFF Input

Link pin 15 and 16 to turn the power supply off.

See chapter “Remote ON / OFF Function ” for details.

I “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.

Fig. 14-2 Power Supply Condition Display

C1 Status Indicator: Alarm, OFF, DC OK

Alarm: The red Alarm LED reports over-temperature, output overload, output overvoltage is integrated in the power supply condition display.

OFF: The yellow OFF LED reports that the output has been switched off due to the remote ON/OFF signal and is integrated in the power supply condition display.

DC OK: The green DC-OK LED reports an output above 22V of a running device

C2 Denomination Fields: Vin, Vout, Iout, °C, Transients and khrs

The symbol stands for transient events

See chapter “Power Supply Condition Display” for details.



15/33

CP20.248


15.

C

ONNECTION

T

ERMINALS

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

Type

Input Output

Solid wire

Stranded wire

Screw termination max. 6mm 2 max. 4mm 2

Screw termination

Max. 6mm 2

Max. 4mm 2

American Wire Gauge

Max. wire diameter (including ferrules)

Recommended tightening torque

Wire stripping length

Screwdriver

AWG 20-10

2.8mm max. 1Nm, 9lb-in

7mm / 0.28inch

3.5mm slotted or crosshead No 2

AWG 20-10

2.8mm

Max. 1Nm, 9lb-in

7mm / 0.28inch

3.5mm slotted or crosshead No 2

Signal Terminals

Push-in termination

Max. 1.5mm

2

Max. 1.5mm

2

AWG 24-16

1.6mm

-

7mm / 0.28inch

3mm slotted to open the spring



16/33

CP-Series

CP20.248


16.

L

IFETIME

E

XPECTANCY

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 spec ification. 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.

Lifetime expectancy

AC 100V

40 000h

111 000h

23 000h

113 000h

313 000h

66 000h

AC 120V

51 000h

130 000h

33 000h

145 000h

368 000h

93 000h

AC 230V

88 000h

157 000h

63 000h

248 000h

443 000h

178 000h

At 24V, 20A and 40°C






17.

MTBF

MTBF stands for M ean T ime B etween F ailure, 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 cannot be determined if the failed unit has been running for 50 000h or only for 100h.

For these types of units the MTTF ( M ean T ime T o F ailure) value is the same value as the MTBF value.

MTBF SN 29500, IEC 61709

MTBF MIL HDBK 217F

AC 100V

T.B.D.

T.B.D.

T.B.D.

T.B.D.

T.B.D.

T.B.D.

AC 120V

T.B.D.

T.B.D.

T.B.D.

T.B.D.

T.B.D.

T.B.D.

AC 230V

T.B.D.

T.B.D.

T.B.D.

T.B.D.

T.B.D.

T.B.D.



At 24V, 20A and 40°C;

Ground Benign GB40

At 24V, 20A and 25°C;

Ground Benign GB25

At 24V, 20A and 40°C;

Ground Fixed GF40

At 24V, 20A and 25°C;

Ground Fixed GF25



17/33

CP20.248


18.

EMC

The EMC behavior of the device is designed for applications in industrial environment as well as in residential, commercial and light industry environments.

The device complies with EN 61000-6-1, EN 61000-6-2, EN 61000-6-3, EN 61000-6-4, EN 61000-3-2 and EN 61000-3-3.

The 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.

Without additional measures to reduce the conducted emissions on the output (e.g. by using a filter), the device is not suited to supply a local DC power network in residential, commercial and light-industrial environments. No restrictions apply for local DC power networks in industrial environments.

EMC Immunity

Electrostatic discharge

Electromagnetic RF field

Fast transients (Burst)

Surge voltage on input

Surge voltage on output

Conducted disturbance

Mains voltage dips

Voltage interruptions

Powerful transients

Power lines and housing

EN 61000-4-2 Contact discharge

Air discharge

EN 61000-4-3

EN 61000-4-4

EN 61000-4-5

EN 61000-4-5

EN 61000-4-6

EN 61000-4-11

80MHz-2.7GHz

2.7-6GHz

Input lines

Output lines

L → N

N → PE

L → PE

+ → -

+ → PE

- → PE

0.15-80MHz

0% of 100Vac

40% of 100Vac

70% of 100Vac

0% of 120Vac

40% of 120Vac

70% of 120Vac

0% of 200Vac

40% of 200Vac

70% of 200Vac

EN 61000-4-11

VDE 0160

0V

Over entire load range

8kV

15kV

20V/m

10V/m

4kV

2kV

2kV

4kV

4kV

1kV

2kV

2kV

10V

0Vac, 20ms

40Vac, 200ms

70Vac, 500ms

0Vac, 20ms

48Vac, 200ms

84Vac, 500ms

0Vac, 20ms

80Vac, 200ms

140Vac, 500ms

5000ms

750V, 0.3ms

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion C

Criterion A

Criterion A

Criterion C

Criterion A

Criterion A

Criterion A

Criterion A

Criterion C

Criterion A

EMC Immunity Signal and communication lines

Fast transients (Burst)

Surge voltage

EN 61000-4-4

EN 61000-4-5

Signals with coupling clamp

DC OK, Alarm contact → PE

2kV

1kV

Criterion A

Criterion A

Performance criterions:

A: Device shows normal operation behavior within the defined limits.

C: Temporary loss of function is possible. The device may shut-down and restarts by itself. No damage or hazards for the device will occur.



18/33

CP-Series

EMC Emission

Conducted emission input lines

Conducted emission output lines

Radiated emission

Harmonic input current

Voltage fluctuations, flicker

EN 55011, EN 55032, FCC Part 15, CISPR 11, CISPR

32

IEC/CISPR 16-1-2, IEC/CISPR 16-2-1

EN 55011, EN 55032, CISPR 11, CISPR 32

EN 61000-3-2 - Class A equipment

EN 61000-3-2 - Class C equipment

EN 61000-3-3

Switching Frequencies

PFC converter

Main converter

Auxiliary converter

Microcontroller

100kHz

80kHz to 140kHz

60kHz

8MHz, 8MHz, 32MHz

CP20.248


Class B

Limits for local DC power networks not fulfilled.

Class B

Fulfilled

Fulfilled in the load range from 8 to 24A

Fulfilled, tested with non-pulsing constant current loads.

Fixed frequency

Output load dependent

Fixed frequency

The device utilize in total 3 microcontrollers



19/33

CP-Series

19.

E

NVIRONMENT

Operational temperature

Storage temperature

Output de-rating

Humidity

Atmospheric pressure

Altitude

Overvoltage category

Impulse withstand voltage

Degree of pollution

Vibration sinusoidal

Shock

CP20.248


-25°C to +70°C (-13°F to 158°F) The operational temperature is the ambient or surrounding temperature and is defined as the air temperature 2cm below the device.

For storage and transportation -40°C to +85°C (-40°F to 185°F)

6.4W/°C

12W/°C

1.33A/1000m or 5°C/1000m

Between +45°C and +60°C (113°F to 140°F)

Between +60°C and +70°C (140°F to 158°F)

For altitudes >2000m (6560ft), see Fig. 19-2

The de-rating is not hardware controlled. The user has to take care by him-self to stay below the derated current limits in order not to overload the unit.

5 to 95% r.h.

110-54kPa

Up to 5000m (16 400ft)

II

According to IEC 60068-2-30

See Fig. 19-2 for details

See Fig. 19-2 for details

According to IEC 60664-1, for altitudes up to 5000m

4kV (according to overvoltage category III)

2

Input to PE

According to IEC 60664-1, for altitudes up to 2000m

2-17.8Hz: ±1.6mm

17.8-500Hz: 2g

2 hours / axis

30g 6ms, 20g 11ms

3 bumps / direction

18 bumps in total

According to IEC 60664-1, not conductive



Shock and vibration is 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. 19-1 Output current vs. ambient temp.

Allowed Output Current at 24V

24A

20A

15A

A...90 to 264Vac, continuous

B... short term

(max. 60s every 10 minutes)

B

A

Fig. 19-2 Output current vs. altitude


24A

20A

16A

C

B

A

A... Tamb < 60°C

B... Tamb < 45°C

C... Short term

0

-25 0 45 60 70°C

Ambient Temperature

Altitude

AP *)

0m

110kPa

*) Atmospheric pressure

2000m

80kPa

5000m

54kPa



20/33

CP-Series

CP20.248


20.

S

AFETY AND

P

ROTECTION

F

EATURES

Isolation resistance

PE resistance

Output over-voltage protection

Class of protection

Degree of protection

Over-temperature protection

Input transient protection

Internal input fuse

Touch current (leakage current) min. min. min. min.

500MOhm

500MOhm

500MOhm

500MOhm

At delivered condition between input and output, measured with 500Vdc

At delivered condition between input and PE, measured with 500Vdc

At delivered condition between output and PE, measured with 500Vdc

At delivered condition between output and DC OK or Alarm contacts, measured with 500Vdc max. 0.1Ohm Resistance between PE terminal and the housing in the area of the DIN-rail mounting bracket. myp. 30.5Vdc max. 32Vdc

In case of an internal defect, a redundant circuit limits the maximum output voltage to

32V. The output switches off and performs three restart attempts. If the failure continues, the output shuts down. Cycle input power to reset.

I According to IEC 61140

A PE (Protective Earth) connection is required

IP 20

Included

According to EN/IEC 60529

Output shuts down with automatic restart.

Temperature sensors are installed on critical components inside the unit and turn the unit off in safety critical situations, which can happen e.g. when ambient temperature is too high, ventilation is obstructed or the derating requirements are not followed. There is no correlation between the operating temperature and turnoff temperature since this is dependent on input voltage, load and installation methods.

For protection values see chapter “EMC” . MOV (Metal Oxide

Varistor)

Included typ. typ.

0.12mA / 0.31mA

0.18mA / 0.45mA typ. 0.30mA / 0.76mA max. 0.16mA / 0.38mA max. max.

0.23mA / 0.55mA

0.39mA / 0.94mA

Not user replaceable slow-blow high-braking capacity fuse

At 100Vac, 50Hz, TN-,TT-mains / IT-mains








21/33

CP-Series

CP20.248


21.

D

IELECTRIC

S

TRENGTH

The output voltage is floating and has no ohmic connection to the ground.

The output is insulated to the input by a double or reinforced insulation.

Type and routine 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.

We recommend that either the + pole or the – pole shall be connected to the protective earth system. This helps to avoid situations in which a load starts unexpectedly or cannot be switched off when unnoticed earth faults occur.

Input

L

N

A

Fig. 21-1 Dielectric strength

Earth, PE

B *)

C

B

DC OK, Alarm

D

Output + and -

S/P-Terminal

Remote ON/

OFF Input

Type test

Routine test

60s

5s

Field test 5s

Cut-off current setting for field test

A

2500Vac 3000Vac 1000Vac

2500Vac 2500Vac

2000Vac 2000Vac

> 10mA

B

> 10mA

C

500Vac

500Vac

> 20mA

D

500Vac

500Vac

500Vac

> 1mA

B *)

When testing ensure that the maximal voltage between DC OK and the output and DC-Alarm and the output is not exceeded (column D). We recommend connecting DC OK and Alarm pins and the output pins together when performing the test.



22/33

22.

A

PPROVALS

IEC 61010 planned

CP-Series

IEC 62368-1 planned

CP20.248


CB Scheme Certificate

IEC 61010-2-201 Electrical Equipment for Measurement, Control and

Laboratory Use - Particular requirements for control equipment

CB Scheme Certificate

IEC 62368-1 Audio/video, information and communication technology equipment - Safety requirements

Output safety level: ES1

23.

R

EGULATORY

C

OMPLIANCE

CE

REACH Directive

WEEE Directive

RoHS (China RoHS 2)

EU Declaration of Conformity

Trade conformity assessment for Europe

The CE mark indicates conformance with the European

- RoHS directive,

- EMC directive and the

- Low-voltage directive (LVD)

Manufacturer's Statement

EU-Regulation regarding the Registration, Evaluation, Authorisation and

Restriction of Chemicals


EU-Directive on Waste Electrical and Electronic Equipment


Administrative Measures for the Restriction of the Use of Hazardous

Substances in Electrical and Electronic Products

25 years



23/33

CP-Series

CP20.248


24.

P

HYSICAL

D

IMENSIONS AND

W

EIGHT

Width

Height

Depth

Weight

DIN-Rail

Housing material

Installation clearances

Penetration protection

48mm 1.89

’’

124mm 4.88’’

127mm 5.0’’

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

840g / 1.84lb

Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.

Body: aluminium alloy

Cover: zinc-plated steel

See chapter 2

Small parts like screws, nuts, etc. with a diameter larger than 5mm

Fig. 24-1 Front view Fig. 24-2 Side view

All dimensions in mm

All dimensions in mm



24/33

25.

A

CCESSORIES

CP-Series

CP20.248


25.1.

ZM10.WALL

–

W

ALL

/P

ANEL

M

OUNT

B

RACKET

This bracket is used to mount the devices on a wall/panel without utilizing the DIN-Rail. The bracket can be mounted without detaching the DIN-rail brackets from the power supply. Product for illustration purposes only.

Fig. 25-1 Isometric view Fig. 25-2 Isometric view Fig. 25-3 Isometric view

Fig. 25-4 Wall/panel mounting, front view Fig. 25-5 Hole pattern for wall mounting Fig. 25-6 Wall/panel mounting, side view



25/33

CP-Series

CP20.248


25.2.

UF20.241

B

UFFER

M

ODULE

The UF20.241 buffer module is a supplementary device for DC 24V power supplies. It delivers power to bridge typical mains failures or extends the hold-up time after the AC power is turned off.

When the power supply provides a sufficient voltage, the buffer module stores energy in the integrated electrolytic capacitors. When the mains voltage is lost, the stored energy is released to the DC-bus in a regulated process.

The buffer module can be added in parallel to the load circuit at any given point and does not require any control wiring.

One buffer module can deliver 20A additional current and can be added in parallel to increase the output ampacity or the hold-up time.

25.3.

YR40.241

R

EDUNDANCY

M

ODULE

The YR40.241 is a dual redundancy module, which can be used to build 1+1 or N+1 redundant system.

The device is equipped with two 20A nominal input channels, which are individually decoupled by utilizing

MOSFET technology. The output can be loaded with a nominal 40A continuous current.

Using MOSFETSs instead of diodes reduces heat generation, losses and voltage drop between input and output.

Due to these advantages, the unit is very narrow and only requires 36mm width on the DIN-rail.

The device does not require an additional auxiliary voltage and is self-powered even in case of a short circuit across the output.

A feature of this redundancy module is a special circuit, which keeps the losses and temperature low, even at overload and short circuit conditions up to 65A continuous current.

See chapter “ Parallel Use for Redundancy ” for wiring information.

25.4.

YR40.242

R

EDUNDANCY

M

ODULE

The YR40.242 is a dual redundancy module, which can be used to build 1+1 or N+1 redundant system.

The device is equipped with two 20A nominal input channels, which are individually decoupled by utilizing MOSFET technology. The output can be loaded with a nominal 40A continuous current.

Using MOSFETSs instead of diodes reduces heat generation, losses and voltage drop between input and output. Due to these advantages, the unit is very narrow and only requires 36mm width on the DIN-rail.

The device does not require an additional auxiliary voltage and is self-powered even in case of a short circuit across the output. It requires suitable power supplies on the input, where the sum of the continuous short circuit current stays below 26A. This is typically achieved when the power supplies are featured with an intermittent overload behavior (Hiccup Mode).




26/33

CP-Series

CP20.248


25.5.

YR40.245

R

EDUNDANCY

M

ODULES

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 prevents the output wires from touching and creating a short the load circuit.

The input of the device is decoupled by utilizing MOSFET technology.

Using MOSFETSs instead of diodes reduces heat generation, losses and voltage drop between input and output.

Due to these advantages, the unit is very narrow and only requires 46mm width on the DIN-rail.

The device does not require an additional auxiliary voltage and is self-powered even in case of a short circuit across the output. It requires a suitable power supply on the input, where the continuous short circuit current stays below 22A. This is typically achieved when the power supply is featured with an intermittent overload behavior (Hiccup Mode).




27/33

CP-Series

26.

A

PPLICATION

N

OTES

CP20.248


26.1.

P

EAK

C

URRENT

C

APABILITY

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. 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 three examples show typical voltage dips for resistive loads:

Fig. 26-1 40A peak current for 50ms, typ.

(2x the nominal current)



24V

Output

Voltage

Output

Voltage

24V

17V

100A

16V

40A

Output

Current

0A

Output

Current

0A 1ms/DIV

10ms/DIV



24V

20V

0A

60A

12ms

Peak current voltage dips

Output Voltage

Output Current

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

Typ. from 24V to 16V from 24V to 21V from 24V to 17V

At 40A for 50ms, resistive load





28/33

CP-Series

CP20.248


26.2.

O

UTPUT

C

IRCUIT

B

REAKERS

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

MCB’s are designed t o 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

Fig. 26-4 Test circuit

MCB Load

Maximal wire length *) for a fast (magnetic) tripping:

0.75mm² 1.0mm² 1.5mm² 2.5mm²

AC

+ + C-2A

C-3A

Wire length

31 m

28 m

37 m

34 m

63 m

51 m

98 m

78 m

S1

DC

-

C-4A

C-6A

18 m

9 m

25 m

11 m

38 m

18 m

58 m

26 m

S1... Fault simulation switch

C-8A

C-10A

6 m

4 m

7 m

6 m

12 m

11 m

14 m

13 m

C-13A 2 m 2 m 4 m 7 m

B-6A

B-10A

B-13A

B-16A

23 m

11 m

7 m

5 m

28 m

14 m

11 m

6 m

46 m

19 m

16 m

8 m

B-20A 1 m 1 m

B-25A

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

2 m

66 m

32 m

29 m

15 m

4 m

1 m



29/33

CP-Series

CP20.248


26.3.

C

HARGING OF

B

ATTERIES

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) Use only matched batteries when putting 12V types in series. b) Ensure that the ambient temperature of the power supply stays below 40°C.. c) Use a 30A or 32A circuit breaker or a blocking diode between the power supply and the battery. d) Ensure that the output current of the power supply is below the allowed charging current of the battery. e) The return current to the power supply is typically 3.5mA. This return current can discharge the battery when the power supply is switched off except in case a blocking diode is utilized. f) Set the device in to “Parallel Use” mode and adjust the output voltage, measured at no load and at the battery end of the cable, very precisely to the end-of-charge voltage of 27.8V at 10°C, 27.5V at 20°C, 27.15V at 30°C and 26.8V at 40°C ambient temperature.

26.4.

S

ERIES

O

PERATION

Devices 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 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.

Unit A

Input

Output

Unit B

Input

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.

Output

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

+

-

+

-

+

Load

-

26.5.

P

ARALLEL

U

SE TO

I

NCREASE

O

UTPUT

P

OWER

Devices 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 U se” mode with the s ame load conditions on all units, or the units can be left with the factory settings. After the adjustments, set the unit to “Parallel U se” mode, in order to achieve load sharing. The

“Parallel U se” mode reg ulates the output voltage in such a manner that the voltage at no load is approx. 4% higher than at nominal load.

Unit A

Input

Output

Unit B

Input

+

-

+

Load

The ambient temperature is not allowed to exceed +60°C.

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.

Output

+

-

-

Energize all units at the same time. It also might be necessary to cycle the input power (turn-off for at least five seconds), if the output was in 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 devices and avoid installing devices on top of each other. Do not use devices in parallel in mounting orientations other than the standard mounting orientation or in any other condition where a reduction of the output current is required (e.g. altitude).

Pay attention that leakage current, EMI, inrush current will increase when using multiple devices.



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CP-Series

CP20.248


26.6.

P

ARALLEL

U

SE FOR

R

EDUNDANCY

1+1 Redundancy:

Devices 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 device fails. The simplest way is to put two devices in parallel. This is called a 1+1 redundancy. In case one device fails, the other one is automatically able to support the load current without any interruption. It is essential to use a redundancy module to decouple devices from each other. This prevents that the defective unit becomes a load for the other device and the output voltage cannot be maintained any more.

1+1 redundancy allows ambient temperatures up to +70°C.

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

Recommendations for building redundant power systems:

- Use separate input fuses for each device.

- Use separate mains systems for each device whenever it is possible.

- Monitor the individual devices. Therefore, use the DC OK signal of the device.

- It is desirable to set the output voltages of all devices to the same value (± 100mV) or leave it at the factory setting.

- Set the devices into “Parallel U se” mode.

N+1 Redundancy:

Redundant systems for a higher power demand are usually built in a N+1 method. E.g. four devices, each rated for 20A are paralleled to build a 60A redundant system.

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

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 devices in parallel in mounting orientations other than the standard mounting orientation or in any other condition, where a de-rating of the output current is required.

For N+1 redundancy the ambient temperature is not allowed to exceed +60°C.

Wiring examples for 1+1 and n+1 redundancy:

Fig. 26-5 1+1 Redundant configuration for 20A load current with a dual redundancy module

Fig. 26-6 N+1 Redundant configuration for 60A load current with multiple power supplies and redundancy modules

Failure

Monitor

+ + - -

Output

24V,20A

DC-

OK o o

Power

Supply

Input

L N PE

+ + -

Input

1

Input

2

YR40.241

Redundancy

Module

Output

+

+ + - -

Output

24V,20A

DC-

OK o o

Power

Supply

Input

L N PE

+ +

- -

Output

24V,20A

DC-

OK o o

Power

Supply

Input

L N PE

+

-

+

-

Input

1

Input

2

YR40.241

Redundancy

Module

+ +

- -

Output

24V,20A

DC-

OK o o

Power

Supply

Output

+

Input

L N PE

+ +

- -

Output

24V,20A

DC-

OK o o

Power

Supply

Input

L N PE

+

-

+

-

Input

1

Input

2

YR40.241

Redundancy

Module

+ +

- -

Output

24V,20A

DC-

OK o o

Power

Supply

Output

+

Input

L N PE

20A

Load

I I

L

N

PE

Alternatively, the YR40.242 redundancy module can be used but has the input and output terminals reversed.

I I I I

L

N

PE

Alternatively, the YR40.242 redundancy module can be used but has the input and output terminals reversed.

Failure

Monitor

60A

Load



31/33

CP-Series

CP20.248


26.7.

O

PERATION ON

T

WO

P

HASES

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

240V +10% .

Ensure that the wire, which is connected to the N-terminal, is appropriately fused.

L3

L1

Power Supply

AC

L

N

PE

DC

26.8.

U

SE IN A

T

IGHTLY

S

EALED

E

NCLOSURE

L2

When the device 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 device.

In the following test setup, the device is placed in the middle of the box, no other heat producing items are inside the box. The load is placed outside the box.

The temperature sensor inside the box is placed in the middle of the right side of the power supply with a distance of 1cm.

The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.

Enclosure size

Input voltage

Load

Temperature inside the box

Temperature outside the box

Temperature rise

Case A

180x180x165mm

IP66 Box

Rittal PK 9519 100, plastic

230Vac

24V, 16A; (= 80% )

46.8°C

21.0°C

25.8K

Case B

180x180x165mm

IP66 Box

Rittal PK 9519 100, plastic

230Vac

24V, 20A; (= 100% )

51.2°C

21.0°C

30.2K



32/33

CP-Series

CP20.248


26.9.

M

OUNTING

O

RIENTATIONS

Mounting orientations other than the standard mounting orientation require a reduction in continuous output power or a limitation in the maximum allowed ambient temperature.

The listed lifetime and MTBF values from this datasheet apply only for the standard mounting orientation.

The following curves give an indication for allowed output currents for altitudes up to 2000m (6560ft).

Fig. 26-7

Mounting

Orientation A

(Standard orientation)

OUTPUT

Power

Supply


24A

20A

15A

Fig. 26-8

Mounting

Orientation B

(Upside down)

T

INPUT ply wer

P U IN

S up

P o

0

+45 +60 +70°C



24A

15A

Fig. 26-9

Mounting

Orientation C

(Table-top mounting)

T P U OUT

0

+30 +60 +70°C



24A

13A

Fig. 26-10

Mounting

Orientation D

(Horizontal cw)

0

+25 +60 +70°C



24A

13A

Fig. 26-11

Mounting

Orientation E

(Horizontal ccw)

0

+25 +60 +70°C



24A

13A

0

+25 +60 +70°C




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