Liebert 30-130kVA manual With the load on UPS, PhaseB output KVA

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)
								With the load on UPS, PhaseB output KVA
								or KW or RMS current has exceeded 105%
		Inverter						of the nominal per phase rating. The UPS
Inv Ovld								will begin sending the time remaining until a
		Overload	Alarm	NO	YES	NO	YES
Phase C								transfer or shutdown will occur, per the
		Phase C
								Overload vs. Time Curve. The alarm
								condition will clear when the overload
								returns to below the nominal rating.
		Low Power						On any output phase that is supplying at
Low Pwr								least 15% of its rated KVA, the measured
		Factor	Alarm	NO	YES	NO	YES
Factor Warn								output power factor is below 0.50, leading
		Warning
								or lagging.
								With the load being supplied by the inverter,
								the measured load current exceeds the
								auto-Parallel Current Limit or the Pulse-by-
								Pulse Current Limit set point values. If the
Pulse		Pulse Parallel						Static Bypass is available, the SBS supplies
			Alarm	NO	YES	NO	YES	supplemental power. If at the end of 10
Paralleling		Activated
								cycles the load current has not returned to
								below 105%, the Static Bypass will be left
								on and the inverter will be turned off. If the
								over current has cleared the Inverter will be
								left on and the SBS will be turned off.
								After performing a recoverable transfer to
								bypass, with Auto Rexfer enabled, the Auto
								Rexfer time out (default=5minutes) has
		Auto						elapsed before retransfer could be
Auto rexfer								performed. A manual retransfer must be
		Retransfer	Alarm	YES	YES	NO	YES
failed								performed, which will then clear the lockout
		Failed
								and zero the retransfer/ hour counter. If the
								manual transfer is inhibited, the Inverter
								may be latched off due to another fault.
								Contact Liebert Global Services.
								The UPS has determined that the actual
								number of Auto Retransfers in the past hour
								has exceeded the permitted maximum.
Excessive		Excessive						(user settable, default=5). This alarm
		Auto	Alarm	YES	YES	NO	YES	should not be issued if auto retransfers are
Auto Rexfer
		Retransfer						disabled by setting the maximum attempts
								to “0”. A manual retransfer must be
								performed, which will then clear the lockout
								and zero the retransfer/hour counter.
								If the unit is supplying power to an Auxiliary
Aux Power		Aux Power Fail	Alarm	NO	YES	NO	YES	device, this alarm indicates that the system
Fail								has detected a failure in the Aux. Power
								circuit.
								If the unit is supplying power to an Auxiliary
EPO Power		EPO Power	Alarm	NO	YES	NO	YES	device, this alarm indicates that the system
Fail		Fail						has detected a failure in the Aux. Power
								circuit.
LBS Power		LBS Power						Power to the Load Bus Sync circuit has
			Alarm	NO	YES	NO	YES	been lost. Check external wiring. Contact
Fail		Fail
								Liebert Global Services.

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