Troubleshooting - PowerWalker VFD 400 Guia De Inicio Rapido

5. Indicators & Alarm Table for Operation
Conditions
AC Mode
Battery Mode
Low battery at battery
mode
Fault
Alarm for over-temperature
protection
6. Trouble Shooting
Use the table below to solve minor problems.
Problem
No LED display on the
front panel.
Alarm continuously
sounds when the
mains is normal.
Alarm sounds every 2
seconds when
mains is normal.
When power fails, back-
up time is shorten.
The mains is normal
but LED is flashing.
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Visual Indicator
Green LED lighting
Green LED flashing every 10
Green LED flashing every second
and Red LED lighting
Red LED lighting
Red LED flashing every 0.5 seconds
Possible Cause
Low battery.
Battery fault.
The UPS is not turned on.
The UPS is overload.
UPS fault
Battery defect.
the
Charging board is damaged.
The UPS is overload.
Battery voltage is too low.
Battery defect. It might be due
to high temperature operation
environment, or
operation to battery.
Power cord is loose.
seconds
Charge the UPS at least 8 hours.
Replace the battery with the same type
of battery.
Press the power switch again to turn on
the UPS.
Remove some
reconnecting equipment, please verify
that the load matches the UPS capability
specified in the specs.
Return the unit to the service center.
Replace the battery with the same type
of battery.
Return the unit to the service center.
Remove some critical load.
Charge the UPS at least 8 hours.
Replace the battery with the same type
of battery.
improper
Reconnect the power cord properly.
Alarm
Off
Sounding every 10
seconds
Sounding every
second
Continuously
sounding
Off
Solutions
loads first. Before
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