Vertiv™ | Liebert® STS2/PDU
™
User Manual | Rev. 6 | 10/2017 128
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/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
Contact technical support; in the United States, call 800-543-2378. Outside the 48 contiguous United States
contact Vertiv Services, if available in your area. For international areas not covered by Vertiv Services, the
Vertiv-authorized distributor can provide technical support.
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.
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/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
Contact technical support; in the United States, call 800-543-2378. Outside the 48 contiguous United States
contact Vertiv Services, if available in your area. For international areas not covered by Vertiv Services, the
Vertiv-authorized distributor can provide technical support.
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.
EQUIPMENT FAN FAILURE
Equipment Fan Failure
One of the equipment fans has failed.
Contact technical support; in the United States, call 800-543-2378. Outside the 48 contiguous United States
contact Vertiv Services, if available in your area. For international areas not covered by Vertiv Services, the
Vertiv-authorized distributor can provide technical support.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
This event and the system status surrounding it have been written to a History Log if the History Logs were not
already full. This event was also written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.