CD10.241

CD-Series

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

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. (Electro Magnetic Force).

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 maximum allowed feed-back peak current is 40A. Higher

currents can temporarily shut-down the output voltage. The absorbing energy can be calculated according to the

built-in large sized output capacitance which is specified in chapter 5.

The unit is designed to supply any kind of loads, including unlimited capacitive and inductive loads.

The DC/DC converter can be used to charge lead-acid or maintenance free batteries. (Two 12V batteries in series)

Instructions for charging batteries:

a)

Ensure that the ambient temperature of the DC/DC converter is below 45°C

b)

Do not use DC/DC converters in mounting orientations other than the standard mounting orientation (input

terminals on the bottom and output terminals on top of the unit).

c)

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

d)

Use a 16A circuit breaker (or blocking diode) between the DC/DC converter and the battery.

e)

Ensure that the output current of the DC/DC converter is below the allowed charging current of the battery.

f)

Use only matched batteries when putting 12V types in series.

g)

The return current to the DC/DC converter (battery discharge current) is typ. 10mA when the DC/DC converter is

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

The unit is tested and approved for branch circuits up to 50A. 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 20A B- or C-Characteristic breaker should be used.

Jul. 2017 / Rev. 1.1 DS-CD10.241-EN

All parameters are typical values at 24V, 10A, 24Vdc input voltage, 25°C ambient and

after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0

Germany

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