Troubleshooting - V7 1500VA Manual Del Usuario

4. Troubleshooting

If the UPS system does not operate correctly, review the table below for possible solutions.
Symptom
No indication or alarm though the
mains is normal.
The icon and the warning
code flash on LCD display
and alarm is sounding every 2
seconds.
The icons of and
the warning code
LCD display. Alarm is sounding
every 2 seconds.
The icons of and
the warning code
LCD display. Alarm is sounding
every 2 seconds.
Fault code is shown as 27 on LCD
display and alarm is continuously
sounding.
Fault code is shown as 28 on LCD
display and alarm is continuously
sounding.
The icons and
warning code flash on LCD
display. Alarm is sounding every
second.
Fault code is shown as 49 on LCD
display and alarm is continuously
sounding.
Fault code is shown as 43 and the
icon is lighting on LCD
display. Alarm is continuously
sounding.
Possible cause
The AC input power is not
securely connected.
EPO function is activated.
Line and neutral
and
conductors of UPS input
flash on
are reversed.
The battery is incorrectly
and
connected.
flash on
Battery voltage is too high
or charger failure.
Battery voltage is too low,
or charger is failure.
UPS is overload
and the
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.
UPS is over input current.
The UPS shut down
automatically because of
overload at the UPS
output.
20
Remedy
Check if the input power
cord is firmly connected to
the mains.
Set the circuit in closed
position to disable EPO
function.
Rotate mains power socket
by 180° and then connect
to UPS system.
Check if all batteries are
properly connected.
Contact support
Contact support
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.
Remove excess loads from
UPS output.
Remove excess loads from
UPS output and restart it.