Beckhoff PS3011-2440-0000, Documentation

Page: 15 / 43

Technical data, mounting, wiring
PS3011-2440-0000 15 Version: 1.0
Fig. 7: Extra power after switching on; extra power after short circuit or overload
3.5 Hold-up time
The hold-up time is the time during which the output voltage of a power supply unit remains within the
specification after a loss of input power. The hold-up time depends on the output load. Without load the hold-
up time can be several seconds. The green DC-OK LED also lights up during this time.
AC 100 V AC 120 V AC 230 V
Hold-up
time
Typ. 54 ms 54 ms 54 ms At 24 V, 20 A, see Fig.
Hold-up time over input
voltage
min. 45 ms 45 ms 45 ms At 24 V, 20 A, see Fig.
Hold-up time over input
voltage
Typ. 27 ms 27 ms 27 ms At 24 V, 40 A, see Fig.
Hold-up time over input
voltage
min. 23 ms 23 ms 23 ms At 24 V, 40 A, see Fig.
Hold-up time over input
voltage
Fig. 8: Hold-up time over input voltage; switch-off behavior, definitions