Page | 21
4. Troubleshooting
If the UPS system does not operate correctly, use the table below to check problem.
Symptom
Possible cause
Remedy
No indication and alarm even though
the mains is normal.
The AC input power is not
connected well.
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
flashing on LCD display and
alarm is sounding every 2 seconds.
EPO function is activated.
Set the circuit in close
position to disable EPO
function.
The icon
and
flashing on
LCD display and alarm is sounding
every 2 seconds.
Line and neutral conductors
of UPS input are reversed.
Rotate mains power socket
by 180° and then connect to
UPS system.
The icon
and
flashing on
LCD display and alarm is sounding
every 2 seconds.
The external or internal
battery is incorrectly
connected.
Check if all batteries are
connected well.
Fault code is shown as 27 and the
icon
is lighting on LCD display
and alarm is continuously sounding.
Battery voltage is too high or
the charger is fault.
Contact your dealer.
Fault code is shown as 28 and the
icon
is lighting on LCD display
and alarm is continuously sounding.
Battery voltage is too low or
the charger is fault.
Contact your dealer.
The icon
and the icon
are flashing on LCD display and
alarm is sounding every second.
UPS is overload
Remove excess loads from
UPS output.
Fault code is shown as 43 and The
icon
is lighting on LCD display
and alarm is continuously sounding.
The UPS shut down
automatically because of
overload at the UPS output.
Remove excess loads from
UPS output and restart it.
Fault code is shown as 14 and alarm
is continuously sounding.
The UPS shut down
automatically because short
circuit occurs on the UPS
output.
Check output wiring and if
connected devices are in
short circuit status.
Fault code is shown as 01, 02, 03,
11, 12, 13 and 41 on LCD display
and alarm is continuously sounding.
A UPS internal fault has
occurred.
Contact your dealer
Battery backup time is shorter than
nominal value
Batteries are not fully
charged
Charge the batteries for at
least 5 hours and then check
capacity. If the problem still
persists, consult your dealer.
Batteries defect
Contact your dealer to
replace the battery.
Fault code is shown as 45 on LCD
display. At the same time, alarm is
continuously sounding.
The charger does not have
output and battery voltage is
less than 10V/PC.
Contact your dealer.
Содержание UNISTAR SB-NET
Страница 1: ...003 2594 REV B UNISTAR SB NET 120 230V 50 60Hz 800VA to 3kVA USER MANUAL...
Страница 29: ...Page 26 Notes...