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Indicates the Inverter circuit is working.
Indicates the output is working.
Battery information
Indicates the Battery capacity by 0-25%, 26-50%, 51-75%, and 76-100%.
Indicates the battery is
not connected.
Indicates low battery level and low battery voltage.
Input & Battery voltage information
Indicates the input voltage or frequency or battery voltage.
Vac: Input voltage, Vdc: battery voltage, Hz: input frequency
3-3. Audible Alarm
Description
Buzzer status
Muted
UPS status
Bypass mode
Beeping once every 2 minutes
Yes
Battery mode
Beeping once every 4 seconds
Fault mode
Beeping continuously
Warning
Overload
Beeping twice every second
No
Low battery
Beeping once every second
Battery unconnected
Over charge
EPO enable
Fan failure/Over temperature
Charger failure
IP fuse broken
Overload 3 times in 30min
EPO status
Cover of maintain switch is open
Parallel protection
Fault
Bus start failure
Beeping continuously
Yes
Bus over
Bus under
Bus unbalance
Inverter soft start failure
High Inverter voltage
Low Inverter voltage
Inverter output short circuited
Negative power fault
Battery SCR short circuited
Inverter relay short circuited
Parallel communication failure
Parallel output current unbalance
Over temperature
CPU communication failure
Overload
