OnLine Power Battery Backup System - Manual (Page 68)

OLP
Three Phase UPS Systems
8.0 HELP
8-3
Abnormal Description & Checkpoint Solution
The fuses positioned behind PCB
holder have been blown or are not
installed properly.
Replace the fuses or
install them properly. (6) Fans do
not work
while UPS is
on.
Abnormal voltage output in R phase.
Refer to PCB LED
Detecting Guide and
check the 3T PCB of R
phase.
Voltage limit function failure in the
3B, which contributes to the DC
voltage, goes over 430V. Refer to PCB LED
Detecting Guide and
check the 3B PCB.
(7) The
rectifier shunt
down and
HIGH DC
LED is lit.
3C PCB has problem.
Refer to PCB LED
Detecting Guide and
check the 3C PCB.
RESERVE AC FAIL LED lights up.
LCD menu also displays the abnormal
voltage in reserve. (REAL TIME
DATA menu → RESERVE DATA
menu).
Check the reserve wiring
and connect with the
correct source.
Fuse has blown in 3A PCB Replace the fuse.
(8) Abnormal
voltage in
reserve.
If the abnormality cannot be corrected
after the solution actions have been
taken. Refer to PCB LED
Detecting Guide and
check the 3A PCB.
RESERVE FREQ FAIL LED lights up.
LCD menu also displays the abnormal
voltage in reserve. (REAL TIME
DATA menu → RESERVE DATA
menu).
Check the reserve wiring
and connect with the
correct source.
Fuse has blown in 3A PCB Replace the fuse.
(9) Abnormal
frequency in
reserve.
If the abnormal cannot be corrected
after the solution actions have been
taken. Refer to PCB LED
Detecting Guide and
check the 3A PCB.