Liebert 30-130kVA manual Battery is discharging. This occurs

Operation

Table 7	Alarms, functions, and corrective actions (continued)
Actual
Alarm/fault
Name
Displayed		Description	Fault
On Front		of Alarm/	Or	Latch	Dial	Freeze	Event Log
Panel		Fault	Alarm	Mask	Mask	Mask	Mask	Meaning and Corrective Action(s)
								The battery is discharging. This occurs
								whenever the battery supplies power to the
								load for more than five seconds because of
								input power failure, a rectifier problem, or
								an overload condition. If the input power or
								a source of auxiliary power is restored to
Batt		Battery	Alarm	NO	YES	NO	YES	the UPS module, the UPS automatically
Discharging		Discharge						returns to normal operation. Watch the
								battery voltage carefully. Reduce the load
								(begin controlled shutdown) to extend the
								battery back-up time. Start the back-up
								generator, if available. Reset the UPS
								alarms after the input power is restored.
								The message clears after 30 seconds.
								With input current levels above 30% of
								nominal and all three phase voltages within
								5% of each other, there is a difference
								between any single input phase current and
Input I		Input Current						the average input phase current of more
			Alarm	NO	YES	NO	YES	than 25%. The UPS will open the Input filter
Imbalance		Imbalance
								Contactor. The alarm will clear when the
								difference in current falls below 20%, but
								the Input filter contactor will need to be
								reset, using the front panel. Refer to
								manual start up instructions.
								The rectifier input line voltage is outside of
								specified limits or the input circuit breaker is
Input Line Fail		Input Line Fail	Alarm	NO	NO	NO	YES	opened while the battery circuit breaker
								remains closed. The battery supplies power
								to the critical load through the UPS inverter.
								The input frequency is > ± 5% of the
								nominal frequency. The UPS will begin
								using the battery to supply power, if by the
Input OF/UF		Input OF/UF	Alarm	NO	YES	NO	YES	end of discharge the problem is not
								corrected, for single input units power to the
								load will be lost, for dual input units the
								system will attempt transfer to Bypass if
								qualified and available.
								For all of these input problems the system
								will supply power from the battery until the
Input Phase		Input Phase						end of discharge. At that point single input
			Alarm	NO	YES	NO	YES	systems will lose power to the load. Dual
Loss		Loss
								input systems will attempt to transfer to
								bypass if qualified and available. Call
								Liebert Global Services for Assistance.
								For all of these input problems the system
								will supply power from the battery until the
Input		Input Under						end of discharge. At that point single input
			Alarm	NO	NO	NO	YES	systems will lose power to the load. Dual
UnderVoltage		Voltage
								input systems will attempt to transfer to
								bypass if qualified and available. Call
								Liebert Global Services for Assistance.

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