4 Troubleshooting Guide
4.1. Trouble Shooting
When the UPS malfunctions during operation, you may check the followings:
a. Are the wirings of input and output correct?
b. Is the input voltage of the Utility is within the input window of the UPS?
In case problems or symptoms still exist, please proceed the followings for
proper adjustment. Should the problem persists, please contact your local distributor
for help.
1. Check to see if the battery connection
is properly done, then re-charge the
batteries for 8 hours to see whether
the UPS may backup normally;
otherwise, consult your local
distributor right away.
2. If the CB3 is tripped, please turn off
the UPS completely and keep the CAM
switch at position INV before pressing
CB3. Then remove some uncritical
load at the UPS output end. If any
damage of the coating of AC power
cord, please replace a new one.
3. Remove the short circuit occurred at
the EPO terminal.
4. Remove the objects blocked onto the
ventilation holes.
5. Check the cooling FANs on rear panel
are working normally.
5. Make sure the UPS is operated
normally. If it is on CVCF mode, you
have to turn off and turn on the UPS
again.
6. All of parameters except ID Number in
the parallel UPS must be same. Please
refer chapter3.13.5 to set them again
7. Reconnect the RJ-45 wire or set a
UPS with ID=1.
8. When the UPS is on CVCF mode, it is
prohibited to have bypass input. You
have to turn off the UPS and bypass
input and re-start the UPS.
9. Consult your local distributor for help.
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