Reference Manual

All parameters are specified at 24V, 0.63A, 230Vac input, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM004A-EN-P - January 2014 7
Bulletin 1606 Switched Mode Power Supplies
7. Hold-up Time
AC 100V AC 120V AC 230V
Hold-up Time typ. 64ms 98ms 375ms at 24V, 0.32A, see Fig. 7-1
typ. 31ms 47ms 196ms at 24V, 0.63A, see Fig. 7-1
Note: At no load, the hold-up time can be up to several seconds. The green DC-ok lamp is also on during this time
Fig. 7-1 Hold-up time vs. input voltage Fig. 7-2 Shut-down behavior, denitions
0
25
50
125
150ms
85 120 155 190 230Vac
Input Voltage
Hold-up Time
75
100
a) 24V 0.32A typ.
b) 24V 0.32Amin.
c) 24V 0.63A typ.
d) 24V 0.63A min.
a b
c
d
- 5%
Hold-up Time
Zero Transition
Output
Voltage
Input
Voltage