Reference Manual

All parameters are specified at 24V, 2.5A, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless noted otherwise.

6 Rockwell Automation Publication 1606-RM014A-EN-P — March 2014

Bulletin 1606 Switched Mode Power Supplies

5. Output

Output voltage nom. 24V

Adjustment range min. 24-28V guaranteed

max. 30V *) at clockwise end position of potentiometer *)

Factory setting 24.5V ±0.2%, at full load, cold unit

Line regulation max. 10mV 85-264Vac

Load regulation max. 100mV static value, 0A 2.5A

Ripple and noise voltage max. 50mVpp 20Hz to 20MHz, 50Ohm

Output capacitance typ. 1 600μF

Output current nom. 2.5A at 24V, see Fig. 5-1

nom. 2.1A at 28V, see Fig. 5-1

Output power nom. 60W

Short-circuit current min. 3.6A load impedance 400mOhm, see Fig. 5-1

max. 6.2A load impedance 400mOhm, see Fig. 5-1

*) This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. There is no

guarantee this value will be achieved. The typical value is about 28.6V.

Fig. 5-1 Output voltage vs. output current,

typ.

Output Voltage

28V

6A54

Adjustment

Range

Output Current

a) 100Vac

b) 120Vac

c) 230Vac

Peak current capability (up to several milliseconds)

The power supply 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 power supply. During this event, the capacitors will be

discharged and causes a voltage dip on the output. Detailed curves can be found in section 21.1.

Peak current voltage dips typ. from 24V to 16V at 5A for 50ms, resistive load

typ. from 24V to 15V at 12.5A for 2ms, resistive load

typ. from 24V to 10.5V at 12.5A for 5ms, resistive load

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