Liebert 50 and 60 Hz, S3 user manual Procedures in 3.0 Operation

Table 5	Alarm Messages (continued)
Alarm Message		Meaning	Corrective Action
LAN Interface Shutdown		This alarm indicates the LAN is being	This should activate the automatic
Initiated		shut down for a programmed action	shutdown sequence programmed
		due to the activation of one or more	into your LAN operating system.
		alarms.
Load on Manual Bypass		The Maintenance Bypass switch is in	When the maintenance activity has
		the Maintenance position.	been completed, return the unit to
			normal operation.
Logic Error		Automatic diagnostic testing has	Record the alarm condition and
		detected a failure (of hardware or	contact Liebert Global Services.
		software) in the UPS internal control
		system. A second message may
		indicate internal test or software
		time-out. The load has been
		automatically transferred to bypass.
Low Battery Shutdown		Battery has discharged to the	When the battery has recharged and
		minimum allowable voltage. If the	if there is not fault, the unit will
		bypass is available the unit will	retransfer from bypass. If bypass
		transfer to bypass. If the bypass is	was not available, when input power
		not available, the UPS is shut down.	becomes available, perform a UPS
		No power is being supplied to the	start-up procedure. Unit will start-up
		critical load.	by itself if auto-restart is enabled.
Low Battery Warning Issued		The battery voltage measurement	User should take appropriate
		has reached the user-programmed	measures to insure an orderly
		warning value. The unit will shut	shutdown of the system. If the user
		down at the specified time if input	has set the warning level above 2
		power is not restored.	minutes, you may also take action to
			shed load and increase battery time
			to complete discharge.
Manual Off Activated		The UPS has been shut down	To restart the UPS follow the
(Alarm History Only)		remotely through the RS-232	procedures in 3.0 - Operation.
		interface or through the advanced
		configuration menu.
Manual On Activated		The UPS has been turned on	This is an information alarm only.
(Alarm History Only)		remotely through the RS-232	Make sure it is OK that the UPS is
		interface or through the advanced	energized.
		configuration menu.
Manual Transfer-to-Bypass		The UPS has been transferred to	Determine why the UPS was
Activated		bypass remotely through the RS-232	transferred to bypass. Clear the fault
(Alarm History only)		interface or through the advanced	or problem and retransfer to normal
		configuration menu. The UPS stays	operation. If the problem cannot be
		on Bypass until the retransfer is	corrected, contact Liebert Global
		activated and all required conditions	Services.
		for retransfer are satisfied.
Memory Failure ROM or		The microprocessor has failed a self	Contact Liebert Global Services.
Memory Failure RAM		diagnostic test during the start-up
		process. Start up will not be allowed.
Neutral SCR Short		On units equipped with the isolated	Contact Liebert Global Services.
		neutral option, the SCR that transfers
		the neutral has failed short.
Non Volatile Ram U88		Non Volatile ram has a long life	Contact Liebert Global Services.
Corrupted		(10 year) back up battery, either the
		battery is near end or life or the
		memory has been corrupted.
Non Volatile Ram U88 Failed		Non Volatile ram back up battery has	Contact Liebert Global Services.
		reached end of life or the Main
		control board memory has had a
		failure.

54 Operation