5-8. Fault reference codes
17
5-9. Warning indicator
Warning
Icon (flashing)
Alarm
L
ow battery
Sounds every second
Overload
Sounds twice every second
Battery is not connected
Sounds every second
Overcharge
Sounds every second
Over temperature
Sounds every second
Charger failure
Sounds every second
Battery fault
Sounds every second
Out of Bypass voltage range
Sounds every second
Bypass frequency unstable
Sounds every second
EEPROM error
Sounds every second
OVER LOAD
BATT.FAULT
LOW BATT.
BYPASS
CH
FU
EE
OVER LOAD
SHORT
Fault event
Fault code
Icon
Fault event
Fault code
Icon
BUS start fail
01
x
Inverter voltage low
13
x
BUS over
02
x
Inverter output short
14
BUS under
03
x
Battery voltage too high
27
x
BUS unbalance
04
x
Battery voltage too low
28
x
Inverter soft start fail
11
x
Temperature overload
41
x
Inverter voltage high
12
x
Overload
43
Charger fail
45
x
18
6. TROUBLE SHOOTING
If the UPS system does not operate correctly, please solve the problem by using the table.
Symptom
No indication and alarm even
though the mains is normal.
The AC input power is not
connected well.
The AC input is connected
to the UPS output.
Plug AC input power cord to
AC input correctly.
Check if input power
cord firmly connected
to the mains.
The external or internal
battery is incorrectly
connected.
Check if all batteries
are connected well.
Battery voltage is too high
or the charger is faulty.
Contact your dealer.
Battery voltage is too low
or the charger is faulty.
Contact your dealer.
Remove excess loads
from UPS output.
Remove excess loads
from UPS output.
Remove excess loads
from UPS output first.
Then shut down the UPS
and restart it.
The UPS shutdown
automatically because of
overload at the UPS output.
Remove excess loads
from UPS output and
restart it.
The UPS shutdown
automatically because
short circuit occurs on
the UPS output.
Check output wiring and
if connected devices are
in short circuit status.
After repetitive overloads,
the UPS is locked in the
Bypass mode. Connected
devices are fed directly by
the mains.
UPS is overloaded. Devices
connected to the UPS are
fed directly by the electrical
network via the Bypass.
Possible cause
Remedy
The icons and flashing on
LCD display and alarm is sounding
every second.
The icons and
is
flashing on LCD display and alarm
is sounding twice every second.
OVER LOAD
OVER LOAD
Fault code is shown as 43, the icon
is lighting on LCD display and
alarm is sounding continuously.
Fault code is shown as 27 and the
icon is lighting on LCD display
and alarm is sounding continuously.
BATT, FAULT
BATT, FAULT
Fault code is shown as 28 and the
icon is lighting on LCD display
and alarm is continuously sounding.
Fault code is shown as 14 and the
icon is lighting on LCD display
and alarm is sounding continuously.
SHORT
UPS is overloaded.
