Maintenance circuit
breaker close
Maintenance circuit breaker is close
Maintenance circuit
breaker open
Maintenance circuit breaker is open
Emergency shutdown
System emergency shutdown, EPO
Generator connected
External generator is connected
Mains abnormal
Input mains abnormal
Bypass phase conversion Bypass input phase converse
Bypass voltage abnormal Bypass input voltage abnormal
Bypass fault
Bypass fault
Bypass overload
Bypass output is overload
Up to bypass overtime
of overload
Bypass is overtime of overload
Bypass frequency tracing
exceeds
Bypass frequency is out of the tracing range
Switch times up to in this
hour
The times of switch between bypass and inverter exceeds 5 times in the
latest hour.
Output short
System output short
Battery EOD
Battery voltage achieves shutdown point
Battery self-check
The system enters battery self-check mode
Battery self-check
success
Battery normal during system self-check
Battery manual check
failure
Battery fault during system self-check
Battery maintenance
The system is in battery maintenance status
Battery maintenance
success
Battery maintenance status completes
Battery maintenance
failure
Battery maintenance process is not normal
Stop testing
Battery self-check or battery maintenance status stops
Fault clearing
Clear the alarmed fault
Delete history record
Delete all history record
Inverter power supply ban Inverter power ban supply
Manual switch of bypass
Switch the system to bypass output manually
Cancel manual switch of
bypass
Switch the system from bypass to inverter output manually
Battery low voltage
Battery low voltage
Battery reversal
Battery polarity reversal
Input N line
disconnected
System input N line is not connected
Bypass fan fault
Bypass module fan fault
ManualShutdown
Shut down UPS by manual
Note: if the alarm is caused by the set value of the software, the modification of set value should
contact the local service center.