Emerson Liebert Static Transfer Switch - Manual (Page 129)

Event Message Help Text
121
S1 VOLT SENSE FAIL
Source 1 Voltage Sense Module Failed
The module contained on the snubber monitoring the input voltage from Source 1 has failed.
Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the Liebert STS2
system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm.
Contact Liebert for technical support at 1-800-LIEBERT (800-543-2378).
This event was written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.
If configured to be a latching alarm, press RESET on the display. If you are accessing the unit from a terminal, type CA and
press RETURN on your keyboard.
S2 VOLT SENSE FAIL
Source 2 Voltage Sense Module Failed
The module contained on the snubber monitoring the input voltage from Source 2 has failed.
Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the Liebert STS2
system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm.
Contact Liebert for technical support at 1-800-LIEBERT (800-543-2378).
This event was written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.
If configured to be a latching alarm, press RESET on the display. If you are accessing the Liebert STS2 system from a
terminal, type CA and press RETURN on your keyboard.
S1 SCR SENSE FAIL
Source 1 SCR Sense Module Failed
The module contained on the snubber monitoring the SCRs for Source 1 has failed.
Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the Liebert STS2
system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm.
Contact Liebert for technical support at 1-800-LIEBERT (800-543-2378).
This event was written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.
If configured to be a latching alarm, press RESET on the display. If you are accessing the Liebert STS2 system from a
terminal, type CA and press RETURN on your keyboard.