Siemens Simcenter SCADAS RS User Manual page 75

• Using a (potential free) switch
• Between pins On/Off (1) and PwrOut (3)
• ON: If the switch is closed and there is external DC Power available
• OFF: Otherwise
OFF = Graceful shutdown.
In any case, the UPS Unit will not switch on, or will shut gracefully down, if there are no available power
means: no external DC power input and very low internal buffer capacity.
The Remote ON/OFF function of the UPS Unit behaves as follows.
UPS REMOTE INPUT EVENTS
6.5 V < High < 60 V
Goes low < 4.5 V
VOLTAGE
SWITCH Closed
Opened
NOTE: SHUTDOWN means gracefully shutting down.
NOTE: Tolerance in voltage values is ± 10%.
User Manual Simcenter SCADAS RS system, Simcenter Testlab
© 2023 Siemens
DC power available Power buffer and/or
ext. batteries OK
ON ON (discharge)
SHUTDOWN
ON
SHUTDOWN
Remote ON/OFF switching
Power buffer and/or
ext. batteries very low
SHUTDOWN
SHUTDOWN SHUTDOWN
SHUTDOWN SHUTDOWN
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