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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
Output Overload
(bypass)
One short beep every half second
Overtemperature
(bypass)
A one-second beep every 4 seconds
DC Bus Overvoltage
(bypass)
A one-second beep every 4 seconds
Control Power Supply
Failure (bypass)
A one-second beep every 4 seconds
PFC Failure (bypass) A one-second beep every 4 seconds
Inverter Failure A one-second beep every 4 seconds
Battery Test Failure A 2-second beep every minute