Chapter 5 Troubleshooting
In the event of UPS fault, please check it and remove the fault in the
first instance following the methods described in the table below. If
the fault still exists, please contact the distributor, we’ll help you out
of trouble in the shortest time.
If the UPS is operating in
Battery mode, please
note the battery backup
time.
The mains voltage is
outside tolerances.
The mains indicator
flashes.
5
A. Pressing and holding
the ON button for more
than 1 second;
B. Turn on the UPS
again after
disconnecting all loads.
A. The button holding
time is too short;
B. overload.
After pressing the
ON button, the UPS
does not start up.
4
Make sure that the
output power line is
properly connected.
The output power line is
not properly connected.
No alarm is given,
but there is no
voltage output.
3
A. Turn on the input
switch;
B. Make sure that the
input power line is
properly connected;
A. The input switch is
turned off;
B. The input power line
is not properly
connected;
The AC mains is
normal, but the
mains indicator does
not shine and the
UPS operates in
Battery mode.
2
Use voltmeter to check
whether the input mains
voltage is within
tolerances.
A. AC mains hasn’t been
introduced into the
system;
B. Input undervoltage.
No panel display and
system self-test
when the mains
switch is in the ON
position.
1
Action
Possible Cause
Alarm or Condition
Serial
No.
Chapter 5 Troubleshooting 43
E1-20010916-C-1.0
