Form No. 003-2282 Rev G
33
Situation
Check Items
Solution
UPS Red Fault
LED lights up
Check the error code
shown on the LCD screen
1. Er05,
&
2. Er06, Er10, Er12, Er28,
&
3. EPO
4. Er11, Er33
5. Er14
6. Er15
7. Er16, Er27
8. Er21
9. Er24
10. other error code
1. Check to see if the battery connection is
properly done, then re-charge the
batteries for 8 hours to see whether the
UPS will backup normally; otherwise,
consult your local distributor right away.
2. Remove the short circuit at the EPO
terminal.
3. Remove any objects blocking the
ventilation holes.
4. Verify the cooling fans on the 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 parameters except ID Numbers in
parallel units must be same. Please
refer chapter 3.5 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 a bypass input. You
have to turn off the UPS and bypass
input and re-start the UPS.
9. Consult your local distributor for help.
UPS has no
output and no
error codes or
faults are
present.
Check CB3
If CB3 is tripped, turn off the UPS
completely and keep the Bypass switch at
position INV before pressing CB3. Then
remove some uncritical load at the UPS
output end. If there is any damage to the
AC power cord, replace it.
UPS fails to
offer battery
backup or its
back up time is
shorter than
specified.
If the backup time is still too short after 8
hours of charge, please contact your local
distributor for battery replacement.
UPS locks
itself and it can
not be turned
off.
Please refer to chapter 3.5.1.31 to trouble
shoot the problem; otherwise, consult your
local distributor for help.
