Liebert S3, 50 and 60 Hz user manual Restart after Low Battery, Shutdown

Table 5	Alarm Messages (continued)
Alarm Message		Meaning	Corrective Action
Charger Battery Voltage High		The DC voltage of the battery	Make sure battery breaker is closed.
		charger is outside the specified limits	Contact Liebert Global Services if
Charger Battery Voltage Low		and the charger has been turned off.	this condition persists for more than
		The charger will automatically restart	15 minutes.
		when the DC bus voltage returns to
		within tolerance.
Charger Fuse Blown		The battery circuit breaker is open or	Check the battery circuit breaker. If
		the battery charger fuse has been	the breaker is open, try to reset. If the
		blown. The charger is no longer	breaker will not reset or is not open,
		charging the batteries.	Contact Liebert Global Services.
Charger Hardware Shutdown		Malfunction in the battery charger	Contact Liebert Global Services.
		section. If this condition persists
		without service, the batteries can be
		discharged.
Dial Out Attempt Failed		If the unit is equipped with an internal	Check the phone number
		modem, it attempted to dial out due	programmed into the modem. Check
		to an event or command on the	the receiving modem. Check the
		modem connected to the UPS. The	modem operation.
		attempt was unsuccessful after 3
		tries.
Excessive Retransfers		Several automatic retransfer	Check other messages for inverter
Attempted		attempts (20 attempts during 15	failure. Determine cause of the
		minutes or less) have been made to	overload and reduce the load. If the
		retransfer the load from bypass (if	problem cannot be corrected, call
		available) back to the UPS. The UPS	Liebert Global Services.
		has not been able to consistently
		sustain the load, because of an
		overload condition or an inverter
		failure. The load will remain on
		bypass.
Emergency off. Recycle input		The UPS has been shut down from	Perform a UPS start-up procedure
to restart.		an external contact (REPO) or the	when the conditions causing the
		front panel EPO switch.	external shutdown have been
			corrected. See 3.2.3 - Manual
			Restart after Low Battery
			Shutdown.
Fault Transferred to Bypass		The unit transferred to bypass due to	Review other alarms. Remove
		a fault or overload in the system. This	condition-causing fault if possible
		alarm accompanies the other alarms	(e.g., reduce overload). Call Liebert
		that caused the fault.	Global Services if fault cannot be
			cleared.
Ground Fault detected		There is a ground fault in the battery	Contact Liebert Global Services
on DC bus.		cabinet or battery wiring.	immediately.
Input Voltage Out-of-		The line to line voltage of the input	If this condition persists the battery
Tolerance		power is outside the acceptable	will eventually completely discharge.
		range. In this situation, if the voltage	Check your electrical wiring. Check
		is low the battery will supply power to	with your utility.
		the critical load through the UPS.
Inverter Fuse Blown		The inverter fuse has opened	Contact Liebert Global Services
		indicating a failure in the inverter	immediately.
		section of the UPS. The unit will
		transfer the load to Bypass.
Inverter Neutral SCR Open		On units equipped with the isolated	Contact Liebert Global Services.
		neutral option, the SCR has failed.
Inverter Startup Overvolt		The inverter bus is too high during	Contact Liebert Global Services.
		the walk-in period. Possible fault on
		the PFC.

Operation 53