15
Inverter voltage Low
13
x
Charger failure
45
x
Inverter output short
14
x
Over input current
49
x
3.8 Warning indicator
Warning
Icon (flashing) Code Alarm
Low Battery
Sounds every 2 seconds
Overload
Sounds every second
Over input current
Sounds 2 beeps every 10 seconds
Battery is not connected
Sounds every 2 seconds
Over Charge
Sounds every 2 seconds
Site wiring fault
Sounds every 2 seconds
EPO enable
Sounds every 2 seconds
Over temperature
Sounds every 2 seconds
Charger failure
Sounds every 2 seconds
Battery fault
Sounds every 2 seconds
(The UPS will shut off)
Out of bypass voltage range
Sounds every 2 seconds
Bypass frequency unstable
Sounds every 2 seconds
Battery replacement
Sounds every 2 seconds
EEPROM error
Sounds every 2 seconds
Note: “Site Wiring Fault” function can be enabled/disabled via software. Please check software
manual for the details.
4. Troubleshooting
If the UPS system does not operate correctly, refer to the table below.
Symptom
Possible cause
Remedy
No indicators or alarms though
mains power is normal.
The AC input power is not
connected
Check if input power cord
firmly connected to the
mains.
The AC input is connected to
the UPS output.
Plug AC input power cord to
AC input correctly.
The icon
and the warning code
flash on LCD display and alarm
is sounding every 2 seconds.
EPO function is activated.
Set the circuit in closed
position to disable EPO
function.
The icons of
and
,
and the
warning code
flash on LCD
display. Alarm is sounding every 2
Line and neutral conductors
of UPS input are reversed.
Rotate mains power socket
by 180° and then connect to
UPS system.
