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Under fault conditions, the Fault indicators will be illuminated indefinitely while the battery charger
is operational, or for a maximum of 5 minutes while the battery charger is not operational.
If a problem persists, consult your local dealer, Liebert representative or contact the Liebert World-
wide Support Group. Please have the UPS model number and serial number available at the time of
your inquiry.
All audible alarms can be silenced, with the exception of Low Battery, Bypass Reminder and Missing
Batteries at Startup alarms. Once silenced, the alarm will not sound again until a new alarm condi-
tion is present.
Table 4 Alarm conditions
Condition Alarm
Battery Mode (utility failure)
One short beep every 10 seconds; more than 2 minutes of run time
remaining
Low Battery
Two short beeps every 5 seconds; less than 2 minutes of run time
remaining
On Bypass Reminder A one-second beep every 2 minutes
On Internal Bypass
(to notify user to rotate manual
maintenance switch to Bypass
position)
A one-second beep every 2 seconds
Output Overload (bypass) One short beep every half second
Overtemperature (bypass) A one-second, or two-second, beep every 4 seconds
DC Bus Overvoltage (bypass) A one-second, or two-second, beep every 4 seconds
Control Power Supply Failure (bypass) A one-second, or two-second, beep every 4 seconds
PFC Failure (bypass) A one-second, or two-second, beep every 4 seconds
Inverter Failure A one-second, or two-second, beep every 4 seconds
Inverter-to-Inverter Communication
Failure
A one-half second beep every 1 second
Battery Test Failure A two-second beep every 1 minute
REPO Activated A one-quarter second beep every half second