Reference Manual Manual

All parameters are specified at 24V, 3.8A, 24Vdc input voltage, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
6 Rockwell Automation Publication 1606-RM023A-EN-P — January 2014
Bulletin 1606 Switched Mode Power Supplies
5. Output
Output voltage nom. 24V
Adjustment range min. - not adjustable
Factory setting 24.1V ±0.2%, at full load, cold unit
Line regulation max. 25mV Input voltage variations between 18 to 32.4Vdc
Load regulation max. 100mV static value, 0A 3.8A
Ripple and noise voltage max. 50mVpp 20Hz to 20MHz, 50Ohm
Output current nom. 3.8A see Fig. 5-1
Output power nom. 92W
Short-circuit current min. 3A continuous current, short circuit impedance 200mOhm
max. 6A continuous current, short circuit impedance 200mOhm
Output capacitance typ. 2 200μF
Fig. 5-1 Output voltage vs. output current,
typ.
Fig. 5-2 Current limitation vs. input voltage,
(23V constant voltage load), typ.
Output Voltage
0
024
4
8
12
28V
16
20
24
6
A
315
Output Current
Output Current
3.8
14 18 22
3.9
4.0
4.1
4.3A
4.2
Input Voltage
3.7
610242 26283032Vd
c
Peak current capability (up to several milliseconds)
The DC/DC converter can deliver a peak current, which is higher than the specied short term current. This helps to
start current demanding loads or to safely operate subsequent circuit breakers.
The extra current is supplied by the output capacitors inside the DC/DC converter. During this event, the capacitors will
be discharged and causes a voltage dip on the output. Detailed curves can be found in section 22.1.
Peak current voltage dips typ. from 24V to 16V at 7.6A for 50ms, resistive load
typ. from 24V to 12.5V at 15.2A for 2ms, resistive load
typ. from 24V to 8.5V at 15.2A for 5ms, resistive load