Operator control at the device
3.16 Monitoring functions
Power supply system SITOP PSU8600
114 Manual, 09.2018, A5E36758446-5-76
Reset of a shutdown due to system overload
After 60 s, the basic unit automatically returns to the normal operating state. The expansion
modules return to operational readiness. This state is signaled by:
● green (in buffer operation, yellow) LED "O.K."
① at the basic unit
● green (in buffer operation, yellow) LED "O.K."
① of the expansion modules
● Red flashing LEDs "ON/OFF/RST"
② of the outputs of the expansion modules
● Press the LED buttons of the outputs at the expansion modules.
The LEDs in the buttons light up green. The outputs are switched-on again.
Alternatively, using a remote reset at terminal "RST", all outputs that have been switched off
can be simultaneously switched on again.
Protection functions for connections at the UPS module
Reverse polarity protection at the UPS module
The power connection between the UPS module and the battery modules has reverse
polarity protection. Charging and discharging the battery modules is deactivated if the battery
circuit is connected with an incorrect polarity. An appropriate signal is output.
The power cables and the data cables between the UPS module and the first connected
battery module are checked for wire breakage. An appropriate signal is generated if wire
breakage is detected. Buffer operation can continue if a broken wire is detected in one of the
data cables.
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