Description, device design, dimension drawing
2.9 Signaling contacts/control contacts
Power supply system SITOP PSU8600
58 Manual, 09.2018, A5E36758446-5-76
Signaling contacts/control contacts
2.9.1
The signaling contact is a changeover contact (NC contact terminals "11" and "12", NO
contact terminals "11" and "14") and facilitates processing of information about the operating
state of the power supply system and the output.
11-12 open
Device ready, the output is switched on or
switched off either manually or via control command
11-12 closed (= quiescent state)
11-14 open (= quiescent state)
In the ELECTRONIC SHUTDOWN operating mode:
• Output switched off to due overload
Other possible causes:
• No output voltage (e.g. as there is no supply voltage)
• Basic unit and expansion modules shut down due to
overtemperature
• Basic unit and expansion modules shut down due to
phase asymmetry or failure
• Basic unit has limited power output and expansion mod-
ule shut down due to system overload
• Output switched off due to overtemperature
• Communication error between the basic unit and sup-
plementary module
• Expansion module failure
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