Liebert 350-500 VA user manual Guide to Status Indicators, Troubleshooting

TROUBLESHOOTING

The information below indicates various symptoms a user may encounter in the event the PowerSure PST experiences a problem. Use this information to determine whether external factors caused the problem. See Troubleshooting Chart for suggested remedy.

Fault	Utility/Battery
Indicator	Indicator

Site Wiring

Fault Indicator

1.The Fault Indicator illuminates, indicating the UPS detected a problem.

2.An alarm sounds, alerting that the UPS requires attention. The alarm can be silenced except for low battery and overload warning conditions.

3.Utility/Battery Indicator may be illumi- nated as a diagnostic aid to the operator, as shown below:

Guide to Status Indicators

Fault	Site Wiring	Utility/Battery
(Red)	Fault (Amber)	(Green)					Diagnosis/
							Audible Alarm
!			+			-
Normal Mode
—	—			ON			UPS is operating in Normal
							Mode; no beep.
—	—				Flashing		Battery Test has been initiated;
							no beep.
—	Flashing			ON			Site Wiring Fault; no beep.
Flashing	—			ON			The unit is overloaded; beep
							every half-second
ON	—			ON			The UPS has failed;
							continuous beep
Flashing	—				—		Unit has shut down due to
							overload; continuous beep
ON	—				—		The UPS shut down due to
							failure; continuous beep
Battery Mode
							The UPS is operating in

——Flashing Battery mode; beep every 5 seconds.

——Flashing UPS battery is low; beep every half-second

Flashing	—	Flashing	The unit is overloaded; beep
			every half-second
ON	—	Flashing	The UPS has failed;
			continuous beep

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