Liebert 30-130kVA manual RMS input current has reached

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)
								For all of these input problems the system
								will supply power from the battery until the
Input		Input Over						end of discharge. At that point single input
			Alarm	NO	NO	NO	YES	systems will lose power to the load. Dual
OverVoltage		Voltage
								input systems will attempt to transfer to
								bypass if qualified and available. Call
								Liebert Global Services for Assistance.
Input current		Input Current						The RMS input current has reached the
			Alarm	NO	YES	NO	YES	Input Current Limit setting. Check the UPS
limit		Limit
								load.
								The module battery circuit breaker (MBD) is
								open. This circuit breaker might have been
								opened either manually or automatically in
								a UPS shutdown procedure. If the UPS is
Battery CB		Battery CB						operating with this breaker open, the critical
			Alarm	NO	YES	NO	YES	load is not protected from loss of the utility
Open		Open
								source power. Manual closure of the battery
								breaker is inhibited. You must use the front
								panel to set up the sequence for manual
								battery re-closure. Follow the instructions in
								manual start-up.
								This condition is indicated when the Batt
		Batt sup-						Discharging and Input Undervoltage alarms
Batt Supp								are simultaneously active. The alarm will
		plement is	Alarm	NO	YES	NO	YES
Active								clear when the Inp. Undervoltage alarm
		active
								clears and/or if the rectifier turns off and/or
								if the Batt Dischg alarm clears.
								The bypass is out of sync to a sufficient
								degree that transfer to Static Bypass is
Bypass Sync		Bypass Sync	Alarm	NO	YES	NO	YES	inhibited. An interrupted transfer will be
Error		Error						permitted only in the case of a critical fault.
								If this alarm persists, contact Liebert Global
								Services.
								One or more bypass voltages is below 80%
								or above 115% of the nominal value. If the
								load is on UPS, and the unit is a dual input
Byp out		Bypass						unit, transfers to bypass will be inhibited. If
		Voltage Out of	Alarm	NO	YES	NO	YES	the unit is a single input unit, the system will
Tolerance
		Tolerance						shut down. The Alarm will be cleared 5
								seconds after all voltage are again with 85-
								110% of nominal. If the load has been shut
								down, re-start will be required.
								The bypass source has dropped below 35V
								per phase. On single input units, the UPS
								will shut down. On dual input units, transfer
Bypass Line		Bypass Line	Alarm	NO	YES	NO	YES	to the bypass will be inhibited. The alarm
Fail		Fail						will be cleared five seconds after all
								voltages again exceed 45V. If the unit is
								already on Bypass when this occurs, power
								to the load will be lost.

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