Liebert 30-130kVA manual Alarm Messages, Alarms, functions, and corrective actions

Operation

Alarm Messages

The alarm message area displays the alarm conditions that are present within the UPS system. The table below shows the default values of masks for each alarm/fault, the meaning of the Alarm and possible corrective actions.

The following information applies to the table.

1.Latch Masks, Dial Masks and unshaded Event log masks may be changed by the user. The user may not change any Freeze Masks.

2.The default alarm names for Input Contact 1 through Input Contact 8 can be modified by the user.

Table 7	Alarms, functions, and corrective actions
Actual
Alarm/fault
Name		Description	Fault
Displayed
On Front		of Alarm/	Or	Latch	Dial	Freeze	Event Log
Panel		Fault	Alarm	Mask	Mask	Mask	Mask	Meaning and Corrective Action(s)
								Control Logic has determined that the
								battery breaker(s) is closed and the battery
Battery Fuse		Battery Fuse	Fault	YES	YES	NO	YES	fuse has been open for 10 seconds or
Fail		Fail						longer. Battery back-up is no longer
								available. Liebert Global Services should
								be called immediately.
								Control Logic has determined that the
								battery breaker(s) is closed and the battery
								voltage has dropped below the End of
								Discharge limit. The UPS will transfer to
								bypass. If the transfer is successful, the
Battery Low		Battery Low						UPS will be shut down. If the transfer was
			Fault	YES	YES	YES	YES	unsuccessful, logic will attempt to complete
xfer		Transfer
								a System Shutdown before control power is
								lost. Verify that input power is now available
								and restart the UPS following the
								instructions in this manual. If the system
								fails to restart properly contact Liebert
								Global Services.
								DC bus voltage is 15% or more over the
DC Ov		DC Overvolt						nominal DC Bus Voltage. The UPS will
			Fault	YES	YES	NO	YES	transfer the load to Bypass and will shut
Transient		Transient
								down and isolate the UPS Module. Contact
								Liebert Global Services immediately
								The power conductors on the Input line are
								not wired to the UPS in the required
								sequence. This alarm should appear only
Inp Phase		Input Phase	Fault	NO	NO	NO	YES	during initial start-up or after a repair to the
Rot Error		Rotation Error						source power system. Disconnect power
								from the Input line and correct the wiring.
								Liebert Global Services must be present
								during initial start-up of your UPS System.
								At least one fuse has opened. The UPS
								automatically transfers the critical load to
Rectifier Fuse		Rectifier Fuse						the bypass line. Contactors trip open to
			Fault	YES	YES	NO	YES	shut down and isolate the UPS module.
Fail		Fail
								Contact Liebert Global Services
								immediately. Do not attempt to reset the
								circuit breakers.

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