Troubleshooting - lapara LA-ON-1K-RACK-V.09 L Manual De Usuario

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 mains is normal.
The icon and the warning
code flashing
display and alarm is sounding
every second.
The icon and
on LCD display and alarm is
sounding every second.
The icon and
on 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.
Fault code is shown as 43 and
The icon is lighting on LCD
display and alarm is continuously
sounding.
LA-ON-RACK-V.09
(2U)
Possible cause
The AC input power is not
connected well.
The AC input is connected
to the UPS output.
EPO function is activated.
on LCD
Line and neutral
flashing
conductors of UPS input
are reversed.
The external or internal
flashing
battery
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
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.
The UPS
automatically because of
overload
output.
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 EPO
function.
Rotate
socket by 180° and then
connect to UPS system.
Check if all batteries are
is incorrectly connected well.
Contact your dealer.
Contact your dealer.
Remove
from UPS output.
is overloaded. Remove
from UPS output.
Remove
from
Then shut down the UPS
and restart it.
shut down Remove
from
at the UPS restart it.
19
Remedy
mains power
excess loads
excess loads
excess loads
UPS output first.
excess loads
UPS output and