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. Make sure the input
switch of the 2KVA/3KVA
UPS is turned on;
B. Make sure that the input
power line is properly
connected;
C. Check whether the input
fuse of the
1KVA UPS
is
broken. There is a standby
fuse in the input power
socket.
A. The input switch is
turned off
(2kVA/3kVA
UPS)
;
B. The input power
line is not properly
connected;
C. The input fuse is
broken.
(1kVA UPS
)
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 input switch is in the
ON position.
1
Action
Possible Cause
Alarm or Condition
Serial
No.
36 Chapter 5 Troubleshooting
E1-20010915-C-1.0
