Vertiv™ | Liebert
®
STS2
™
100-1000A, 50/60Hz User Manual | Rev. 12 | 11/2017 117
INTERNAL COMM FAIL
Internal CAN Communications Failed.
Communications have failed in the CAN bus between the control board and the touchscreen control.
Press SILENCE on the touchscreen 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 Vertiv Services at 800-543-2378.
This event was written to the Event Log, 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.
EXTERNAL COMM FAIL
External Communications Failed.
Communications have failed between the control board and the CAN options.
Press SILENCE on the touchscreen to turn Off the audible alarm, if so configured. If you are accessing the unit from a
terminal, type
SH and press RETURN on your keyboard to turn Off the audible alarm.
Contact Vertiv Services at 800-543-2378.
This event was written to the Event Log, 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.
CB1 SHUNT TRIP FAIL
Circuit Breaker 1 Shunt Trip Failure.
Circuit Breaker 1 failed to trip open when the control issued a command for the circuit breaker to trip.
Press SILENCE on the touchscreen 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 Vertiv Services at 800-543-2378.
This event was written to the Event Log, 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.
CB2 SHUNT TRIP FAIL
Circuit Breaker 2 Shunt Trip Failure.
Circuit Breaker 2 failed to trip open when the control issued a command for the circuit breaker to trip.
Press SILENCE on the touchscreen 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 Vertiv Services at 800-543-2378.
This event was written to the Event Log, 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.
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