Siemens SITOP PSU8600, Руководство пользователя

Страница: 95 / 420

Operator control at the device
3.7 Setting the on delay
Power supply system SITOP PSU8600
Manual, 09.2018, A5E36758446-5-76
95
3.7 Setting the on delay
In order to reduce the load on the SITOP PSU8600 power supply system as a result of
simultaneous switch-on current peaks of the loads at the output of the basic unit and at the
outputs of the expansion modules, a switch on delay between the outputs can be selected
when switching on.
When the on delay is activated, the outputs are sequentially switched-on with a 25 ms or
100 ms delay time between the outputs, or "load optimized". For a load-optimized on delay,
after 100 ms, for the previous output n it is additionally checked as to whether the output
current lies below the selected response threshold value. Output n+1 is switched-on as soon
as this is the case. Outputs that have been switched off are not taken into account and are
skipped.
Note
The on delay time may only be switched over when the power supply system is in a no-
voltage state.
Note
The switch-on delay is only possible when operating with an CNX8600 expansion module -
and is then applicable for all outputs of the power supply system.
When the switch-on delay is activated, the outputs are switched-on in the following sequence -
output of the basic unit → outputs of expansion modules 1 → 2 → 3 → 4 → … → n.
The switchover is realized at the DIP switch (see operator controls) with the designations
"STDA"
⑦
and "STDB"
⑧
.
When delivered, DIP switches "STDA" and "STDB" are in the "OFF" position (no switch on
delay).