Emerson 250-400kVA manual Liebert NXL alarm and status messages

UPS Alarm and Status Messages

APPENDIX A - UPS ALARM AND STATUS MESSAGES

Table 7 shows alarm and status messages as they appear in Liebert NXL’s touchscreen and in the history log, along with a description and recommended actions, if any.

If the recommended action fails to correct the condition, contact your factory-authorized service pro- vider.

The “Service Telephone Number” can be found by pressing “CONFIG,” “Ratings,” “More>>” on the menu bar.

Table 7	Liebert NXL alarm and status messages
Event Message		Event Definition	Recommended Action
		An Automatic Restart was enabled but has failed
		to complete.
		With Automatic Restart enabled, the unit	Press “SILENCE” to silence the audible alarm.
		automatically restarts after an End of Discharge
		(EOD) event. This alarm means that one of the	Check the active events to determine the status of
		auto restart requirements was true, but failed	the UPS.
		before the restart sequence completed.	If “Auto Restart Fail” is the only alarm present,
Auto Restart Fail		For example, one conditional requirement for	attempt a manual start of the unit by pressing
		Automatic Restart to occur is that the Rectifier	“Startup,” “Manual Start,” then following the prompts
		Input Voltage must be within acceptable limits. If,	to attempt to place the unit back online.
		during the restart sequence, the input voltage	If the manual start fails, or if there are other alarms
		drops out of tolerance, the Automatic Restart will	present that won’t clear, contact your factory-
		fail.	authorized service provider.
		This alarm is self-clearing. When the condition is
		no longer present, the alarm and any control
		activity tied to the alarm reverts to normal.
			Press “SILENCE” to silence the audible alarm.
			Press “RESET” to attempt to clear active events.
		The condition that caused an automatic transfer	This does not clear the “Auto Retransfer Failed”
			alarm.
		to bypass failed to clear within a specified time
			If all other alarm conditions clear, attempt a manual
		delay.
			transfer back to Inverter by pressing “Transfer,”
Auto Rexfer Failed		An example of a recoverable transfer (one which
			“UPS.”
		the controls may attempt to recover from
			If the transfer is successful, press “RESET” to clear
		automatically) is an overload that exceeded the
			this alarm from the Active Event Window. If the UPS
		overload time curve.
			fails to transfer and the active messages do not
			explain the reason, contact your factory-authorized
			service provider.
		Battery Circuit Breaker “#” is open.	Press “SILENCE” to silence the audible alarm.
		This status message is self-clearing. When the
			Check the status of Battery Circuit Breaker “#”. If it
		condition is no longer present, the message and
Batt CB “#” Open			is open, the alarm is normal.
		any control activity tied to the status event reverts
			If Battery Circuit Breaker “#” is closed, contact your
		to normal. (The Liebert NXL has eight battery	factory-authorized service provider.
		circuit breakers.)

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