Liebert VM18000, VM12000 user manual Alarm Messages, Meanings, and Corrective Actions

Alarm Messages, Meanings, and Corrective Actions

	MESSAGE	MEANING	CORRECTIVE ACTION
	Start-Up Sequence Aborted	The UPS detects a condition that prevents a	Review and record all alarm messages. Perform
		complete start-up.	prescribed action for specified alarm. If Start up
-Up			still aborts, contact Liebert at 1-800-222-5877.
	Site Wiring Error	Incorrect phasing sequence of power conductors	Disconnect power from the UPS and call a
Start		wired to UPS.	wiring.
			qualified electrician to correct and verify the
	Incorrect Input Frequency	Input power frequency outside acceptable range.	Select the correct frequency in the configuration
			screen. Verify the utility frequency.
AC	Input Power Out of Tolerance	Input power frequency outside acceptable range.	No corrective action required.
		UPS battery supplying power to load equipment.
	Battery Failed Test	Automatic Battery Test detects a weak battery.	Repeat the battery test via the LCD “Test Options”
			menu selection. If battery fails again, contact
			Liebert at 1-800-222-5877.
	Can’t execute battery test:	Battery discharged too recently to perform test.	No corrective action required. UPS will perform
	not recharged		next scheduled battery test.
	Battery Date Expired	Batteries are over 5 years old.	Contact Liebert at 1-800-222-5877 to replace
Battery			batteries.
	XX Minutes	Battery discharging. UPS calculates and displays	equipment to extend battery time.
	UPS On Battery Time		Perform and orderly shutdown of load equipment
	Remaining:	remaining battery time.	before time expires or shut off unnecessary load
	Low Battery Shutdown	UPS discharged battery to minimum allowable	Upon return of power, start up UPS. The UPS
		voltage and automatically shut down. No power	starts up by itself if Auto-Restart is enabled.
		supplied to load.
	Charger Battery Voltage High	Battery voltage exceeds acceptable limits causing	Contact Liebert at 1-800-222-5877 if this condition
		automatic charger shutdown. Charger	persists for more than 2 minutes.
		automatically restarts when battery voltage return
		to acceptable levels.
	WARNING: Load On Bypass	Load currently powered through bypass line due	If automatic transfer to bypass, load returns to
		to automatic or manual transfer to bypass. Load	UPS power control for most temporary conditions.
		unprotected from power disturbances or outages.	Review and record any other alarm messages. If
			manual transfer to bypass, return to UPS power
Bypass			control when possible.
	Bypass power out of	Bypass power voltage or frequency outside	Manual transfer to bypass not recommended.
	tolerance	acceptable limits. Automatic bypass transfer	Wait for bypass power to return.
	Bypass out of Sync	prohibited.
	Bypass Overload	At least one phase of bypass current overloaded.	Reduce the load.
	Excessive Retransfer	UPS completed at least 15 attempts to retransfer	Check other messages for inverter failure.
	Attempted	load from utility back to UPS in 20 minutes or	Determine cause of overload and reduce load.
		less. UPS unable to sustain load due to overload
		or inverter failure. Load remains on bypass.
	System Shutdown	Power Factor Corrector detects temporary	Press ON button to restart system. If start-up
	Press ON to Restart System	condition at input of UPS.	aborts, review and record alarm messages and
			contact Liebert at 1-800-222-5877.
	Output Undervoltage	UPS output voltage or current outside acceptable	If UPS is unable to correct either one of these
	Output Overvoltage	limits. Load automatically transferred to bypass.	conditions, contact Liebert at 1-800-222-5877.
System		UPS attempts automatic retransfer when voltage
		or current is within acceptable limits.
	Overload Phase A	Overload. UPS automatically transfers load to	Determine cause of overload and reduce load.
UPS	Overload Phase B	bypass if overload exceeds UPS capacity.
	Output Overload
	Fault: SYSTEM SHUTDOWN	UPS detects and fault and shuts down resulting in	Review and record alarm messages and contact
		loss of power to load.	Liebert at 1-800-327-4384
	Logic Error	Automatic diagnostic testing detects a hardware	Contact Liebert at 1-800-222-5877
		or software failure in UPS internal control system
	External Shutdown	External contact shuts down UPS through REPO.	Start-up UPS after correcting cause of external
			shut-down.
	System Shutdown Impending	UPS cabinet temperature above acceptable limits.	Check for restricted air flow or fan failure. If none,
**	Due to Overtemp	UPS automatically shuts down in 2 minutes if	contact Liebert at 1-800-222-5877
		over-temperature continues.
	Dial-Out Attempt Failed	UPS unsuccessfully attempted to dial out due to	Usually, the dial-out phone line is simply busy.
*		an event.	Check for secure and correct modem connection.

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