Puls CD10.241 Data Sheet

CD10.241

Output voltage

Adjustment range

24 - 28V

Factory setting 24.1V

Output current

10 – 8.6A

At +60°C ambient

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

Input voltage

DC 24V

-25%/+46%

Input current

Input inrush current

6A peak

Efficiency

Losses

14.8W

Hold

Temperature range

Size (W x H x D)

42x124x117mm

Without DIN-rail

Weight

CD-Series

RODUCT DESCRIPTION

The CD10.241 is a DIN-rail mountable DC/DC converter of the DIMENSION series which provides a floating, stabilized and galvanically separated SELV/PELV output voltage.

The CD-Series is part of the DIMENSION power supply family. The most outstanding features of CD10.241 are the high efficiency, the small size and the wide operational temperature range.

The CD-Series includes all the essential basic functions. 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 and a large international approval package for a variety of applications makes this unit suitable for nearly every situation.

DC/DC Converter 24V/24V, 10A, 240W

DC/DC CONVERTER

 24V DC-Input  Isolated 24Vdc Output  Efficiency 94.2%  Width only 42mm  20% Output Power Reserves  Full Power Between -25°C and +60°C  Soft-start Function  Minimal Inrush Current Surge  Reverse Input Polarity Protection  3 Year Warranty

HORT-FORM DATA

DC 24V Nominal

12 – 10.3A Below +45°C ambient

7.5 – 6.5A At +70°C ambient

10.5A

94.2%

-up time 4ms

-25°C to +70°C

500g / 1.1lb

RDER NUMBERS

DC/DC Converter

Mechanical Accessory

Sep. 2019 / Rev. 1.4 DS-CD10.241-EN All values are typical figures specified at 24Vdc input voltage 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.241

ZM2.WALL Wall/panel mount bracket ZM12.SIDE Side mount bracket

AIN APPROVALS

For details or a complete approval list see section 18.

Ind. Cont. Eq.

IECEx

ATEX

planned

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CD10.241

CD-Series

NDEX

Page Page

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

2. Installation Instructions ......................................3

3. DC-Input...............................................................5

4. Input Inrush Current ...........................................7

5. Soft-start Feature ................................................7

6. Output .................................................................8

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

8. Efficiency and Power Losses.............................. 10

9. Functional Diagram ........................................... 11

10. Front Side and User Elements ........................... 11

11. Connection Terminals ....................................... 12

12. Lifetime Expectancy .......................................... 13

13. MTBF .................................................................. 13

14. EMC .................................................................... 14

15. Environment ...................................................... 15

16. Safety and Protection Features ........................ 16

17. Dielectric Strength ............................................ 16

18. Approvals ........................................................... 17

DC/DC Converter 24V/24V, 10A, 240W

19. RoHS, REACH and Other Fulfilled Standards .. 17

20. Physical Dimensions and Weight ..................... 18

21. Accessories ........................................................ 19

21.1. ZM2.WALL – Wall/Panel Mount Bracket . 19

21.2. ZM12.SIDE - Side Mount Bracket ............. 19

21.3. YRM2.DIODE - Redundancy Module ....... 21

21.4. UF20.241 - Buffer Module ........................ 21

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

22.1. Peak Current Capability ........................... 22

22.2. Output Circuit Breakers ............................ 23

22.3. Charging of Batteries ............................... 23

22.4. Series Operation ....................................... 24

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

22.6. Parallel Use for Redundancy .................... 25

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

22.8. Mounting Orientations ............................ 27

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.

ERMINOLOGY 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.

DC 24V A figure displayed with the AC or DC before the value represents a nominal voltage with

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

24Vdc A figure with the unit (Vac) at the end is a momentary figure without any additional

tolerances included.

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.

Sep. 2019 / Rev. 1.4 DS-CD10.241-EN All values are typical figures specified at 24Vdc input voltage 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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CD10.241

1. I

2. I

WARNING

CD-Series

DC/DC Converter 24V/24V, 10A, 240W

NTENDED USE

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

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

NSTALLATION INSTRUCTIONS

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 may 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 surface may cause burns.

Obey the following 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. Install 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.

Unused screw terminals should be securely tightened. The device is designed for pollution degree 2 areas in controlled environments. No condensation or frost allowed. The enclosure of the device provides a degree of protection of IP20. The input can be powered from batteries or similar DC sources. The voltage between the input terminals and ground

must not exceed 60Vdc continuously. The ripple voltage in the low frequency range between 50Hz and 10kHz must be negligible when used in marine applications.

The input must be powered from a PELV or SELV source or an "Isolated Secondary Circuit" in order to maintain a SELV or PELV output.

Check for correct input polarity. The device will not operate when the voltage is reversed. A disconnecting means shall be provided for the input of the device. The device is designed as “Class of Protection III” equipment according to IEC 61140. A PE (ground) connection is not required. However, connecting the chassis ground terminal to ground can be

beneficial to gain a high EMI immunity. 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 6000m (19685ft). See additional requirements in this document for use above

2000m (6560ft).

Sep. 2019 / Rev. 1.4 DS-CD10.241-EN All values are typical figures specified at 24Vdc input voltage 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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CD10.241

CD-Series

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 50A without additional protection device. If an external fuse is utilized, do not use circuit breakers smaller than 20A 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.

DC/DC Converter 24V/24V, 10A, 240W

Sep. 2019 / Rev. 1.4 DS-CD10.241-EN All values are typical figures specified at 24Vdc input voltage 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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CD10.241

3. DC-I

DC i

Allowed voltage and

Allowed

Turn

Shut

Input current

Start

Rise time Turn

Input capacitance External input protection

See recommendations in chapter 2.

Turn-on

17.5Vdc

OUT

Shut-down

32.4Vdc

15.5Vdc

18.0Vdc

Rated input range

35.0Vdc

Start-up

delay

Rise

Time

Overshoot

- 5%

Output Voltage

Input Voltage

12A

3 4 6

16A

Output Current

Input: 24Vdc

Input Current, typ.

Input: 18Vdc

CD-Series

DC/DC Converter 24V/24V, 10A, 240W

NPUT

The input can be powered from batteries or similar DC sources and must be a PELV or SELV source or an "Isolated Secondary Circuit" in order to maintain a SELV or PELV output.

Check for correct input polarity. The device will not operate when the voltage is reversed.

nput Nom. DC 24V -25%/+46% nput range Min. 18.0-35.0Vdc Continuous operation

between input

earth/ground

input ripple voltage Max. 5Vpp In the frequency range from 47 to 500Hz, the

-on voltage Typ. 17.5Vdc Steady-state value, see Fig. 3-1

-down voltage Typ. 15.5Vdc Steady-state value, see Fig. 3-1 Typ. 10.5A At 24Vdc input and 24V, 10A output load , see Fig. 3-3

-up delay Typ. 200ms See Fig. 3-1 Typ. 200ms At 24V, 10A constant current load, 0mF load

-on overshoot Max. 250mV See Fig. 3-2 Typ. 4 300µF Installed inside the device, external capacitors on the

Max. 60Vdc or

Continuous operation, according to IEC 62477-1

42.2Vac

momentary input voltage must always be within the specified limits.

Typ. 14.3A At 18Vdc input and 24V, 10A output load, see Fig. 3-3

capacitance, see Fig. 3-2

Typ. 200ms At 24V, 10A constant current load, 10mF load

capacitance, see Fig. 3-2

input are allowed without any limitations.

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

Fig. 3-3 Input current vs. output load

Sep. 2019 / Rev. 1.4 DS-CD10.241-EN All values are typical figures specified at 24Vdc input voltage 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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CD10.241

1 mOhm

10 mOhm

100 mOhm

1 Ohm

0.1mH 1mH 10mH

Inductance of the supplying network

Resistance of the supplying network

(a) max. (b) typ.

(a)

(b)

CD-Series

DC/DC Converter 24V/24V, 10A, 240W

Requirements for the Supplying Source

In certain circumstances, the input filter of the DC/DC converter can show a resonant effect which is caused by the supplying network. Especially when additional external input filters are utilized, a superimposed AC voltage can be generated on the input terminals of the DC/DC converter which might cause a malfunction of the unit. Therefore, additional input filters are not recommended. To avoid the resonant effects, the minimal resistance of the supplying network which depends on the inductance of the input network, shall be above the boundary curve in Fig. 3-4.

Fig. 3-4 External input filter requirements to

avoid filter instabilities

Sep. 2019 / Rev. 1.4 DS-CD10.241-EN All values are typical figures specified at 24Vdc input voltage 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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CD10.241

4. I

Inrush current

Inrush energy

5. S

CD-Series

DC/DC Converter 24V/24V, 10A, 240W

NPUT INRUSH CURRENT

An active inrush limitation circuit (inrush limiting NTC resistor which is bypassed by a MOSFET) 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.

Max. 8A At +25°C ambient, cold start

Max. 25A At +60°C ambient, cold start Typ. 6A Typ. 22A

Max. 1A2s Between -25°C to +70°C, cold start

Fig. 4-1 Typical input inrush current behavior at

nominal load and 25°C ambient

At +25°C ambient, cold start

peak

At +60°C ambient, cold start

peak

Input: 24Vdc Output: 24V, 10A, constant current load Ambient: 25°C

Input current 2A / DIV Input voltage 5V / DIV Output voltage 5V / DIV Time basis: 100ms / DIV

OFT-START FEATURE

After the DC/DC converter is turned on, the internal output current rises slowly to its nominal value. This method charges the output capacitors (internal and external capacitors) slowly and avoids high input currents during turn-on. High input currents can produce a high voltage drop on the input wiring (especially with long and thin cables) which reduces the terminal voltage on the DC/DC converter. If the terminal voltage is below the shut-down voltage, the DC/DC converter will turn-off and will make a new start-up attempt. This effect is avoided with the integrated softstart function. Please note, that this function increases the rise time of the output voltage by a small amount.

Sep. 2019 / Rev. 1.4 DS-CD10.241-EN All values are typical figures specified at 24Vdc input voltage 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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CD10.241

6. O

Output voltage

Adjustment range

Factory setting

24.1V

±0.2%, at full load, cold unit

Line regulation

Load regulation

Ripple and noise vo

Output current

Nom.

8.6A

At 28V and +60° ambient temperature

Overload behavior

Overload/

Output capacitance

Back

Output Voltage

0 4 8

28V

16A

10 12

Adjustment

Range

Output Current

21 27

14A

13.0

13.5

36Vdc302418

10.0

10.5

11.0

11.5

12.5

12.0

Input Voltage

CD-Series

DC/DC Converter 24V/24V, 10A, 240W

UTPUT

The output provides a SELV/PELV rated voltage, which is galvanically isolated from the input voltage and is designed to supply any kind of loads, including unlimited capacitive and inductive loads.

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

Nom. 24V

Min. 24-28V Guaranteed value from 23-28V

Max. 30V 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.

Max. 25mV Between 18 and 35Vdc input voltage variation

Max. 100mV Between 0 and 10A load variation, static value

ltage Max. 50mVpp Bandwidth 20Hz to 20MHz, 50Ohm

Nom. 12A At 24V and an ambient temperature below +45°C Nom. 10A At 24V and +60° ambient temperature Nom. 7.5A At 24V and +70° ambient temperature Nom. 10.3A At 28V and an ambient temperature below +45°

Nom. 6.5A At 28V and +70° ambient temperature

Continuous current

short-circuit current Max. 15A Continuous current

Typ. 4 500µF Included inside the power supply

-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.

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

24Vdc input voltage, typ.

Fig. 6-2 Current limitation vs. input voltage,

(23V constant voltage load), typ.

Sep. 2019 / Rev. 1.4 DS-CD10.241-EN All values are typical figures specified at 24Vdc input voltage 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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CD10.241

7. H

Hold

8ms

18 20 22 24 28V

Input Voltage

Hold-up Time

(a) 24V, 5A, typ. (b) 24V, 5A, min. (c) 24V, 10A, typ. (d) 24V, 10A, min.

(a)

(b)

(c)

(d)

Load

DC/DC

Converter

Source

Input

Output

CD10

- 5%

Hold-up Time

Output Voltage

Intput Voltage

S1 opens

CD-Series

DC/DC Converter 24V/24V, 10A, 240W

OLD-UP TIME

The input side of the DC/DC converter is equipped with a bulk capacitor which keeps the output voltage alive for a certain period of time when the input voltage dips or is removed. The bulk capacitor can be discharged by loading the DC/DC converter on the output side or through a load which is parallel to the input. There is no protection in the DC/DC converter which prevents current from flowing back to the input terminals. If prevention is needed, an external diode should be used.

At no load, the hold-up time can be up to several seconds. The green DC-ok lamp is also on during this time.

-up Time Typ. 8ms At 24Vdc input voltage, 24V, 5A output, see Fig. 7-1 Min.. 6.5ms At 24Vdc input voltage, 24V, 5A output, see Fig. 7-1 Typ. 4ms At 24Vdc input voltage, 24V, 10A output, see Fig. 7-1 Min.. 3.2ms At 24Vdc input voltage, 24V, 10A output, see Fig. 7-1

Fig. 7-1 Hold-up time vs. input voltage

Fig. 7-2 Shut-down test setup Fig. 7-3 Shut-down behavior, definitions

Sep. 2019 / Rev. 1.4 DS-CD10.241-EN All values are typical figures specified at 24Vdc input voltage 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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