Troubleshooting - Orion Power Systems DC1000RT User Manual

4. Troubleshooting

If the UPS system does not operate correctly, please solve the problem by using the table below.
Symptom
No indication and alarm even
though the main is normal.
The icon is flashing and the
warning code
LCD display. Alarm is sounding
every second.
The icon is flashing and
is lighting on LCD display. Alarm is
sounding every second.
The icon and
LCD display and alarm is sounding
every second.
Fault code is shown as 27 and the
icon is lighting on LCD
display and alarm is continuously
sounding.
Fault code is shown as 28 and the
icon is lighting on LCD
display and alarm is continuously
sounding.
The icon and
on LCD display and alarm is
sounding twice every second.
The AC input power is not
connected well.
The AC input is connected
to the UPS output.
EPO function is activated.
is lighting on
Line and neutral conductors
of UPS input are reversed.
The external or internal
flashing on
battery is incorrectly
connected.
Battery voltage is too high
or the charger is fault.
Battery voltage is too low or
the charger is fault.
UPS is overload
is flashing
UPS is overloaded. Devices
connected to the UPS are
fed directly by the electrical
network via the Bypass.
After repetitive overloads,
the UPS is locked in the
Bypass mode. Connected
devices are fed directly by
the mains.
Possible cause
19
Remedy
Check if input power cord
firmly connected to the
mains.
Plug AC input power cord to
AC input correctly.
Set the circuit in closed
position to disable
function.
Rotate mains power socket
by 180° and then connect to
UPS system.
Check if all batteries are
connected well.
Contact your dealer.
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.
EPO