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4.3.4 Beep Codes
The following table contains common UPS status and beep codes.
UPS Status
Beep Code
UPS fault, Inverter shut down.
All functions inhibited.
Long continuous beep
Control keypad error
Long continuous beep
UPS fault, loads continue to be
supplied via Inverter or
Bypass.
Single beep every 2 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 verified
One quick and short beep
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