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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