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4.3.4 Beep Codes
The following table contains common UPS statuses with their beep codes.
UPS Status
Beep Code
UPS faulty, Inverter shut down.
All functions inhibited.
Long Continuous Beep
Control keypad error
Long Continuous Beep
UPS faulty, loads continue to
be supplied via Inverter or
Bypass.
Single beep every two seconds
In battery mode
Single beep once per second
Battery low
Quick and short successive beeps
Confirm RS-232 port receiving
two quick and short beeps
Service mode okay
one quick and short beep