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Maintenance
§
1
3
.
3
B
§
1
3
.
3
B
！
CAUTION
If the bypass breaker trips, the red ALARM indicator lights and output from the output terminals stops.
Proceed as follows to reset the bypass breaker.
① Stop the UPS by setting
② Examine if there are neither a problem nor a trouble in the equipment of the load.
③ Press the bypass breaker on the back panel of the UPS.
E
E
E
E
E
④ Set MAIN MCCB
For details about UPS startup, see §11.1 "UPS Startup (Normal Operation)".
Note
If you reset the bypass breaker while the UPS is powered on, the "Red ALARM" indicator will remain
lit until you turn the UPS off. Always turn the UPS off before resetting the bypass breaker.
41
y
p
a
s
s
B
r
e
a
k
e
r
y
p
a
s
s
B
r
e
a
k
e
r
Always power the UPS off before resetting the bypass breaker.
Failure to do so can cause electric shock.
MAIN MCCB
1
1
A
1
0
2
E
1
1
A
1
0
2
① Set MAIN SW
1
1
A
2
0
2
1
1
A
2
0
2
① Set MAIN MCCB
1
1
A
3
0
2
1
1
A
3
0
2
① Set MAIN MCCB
to "ON", and then start the UPS by pressing
This completes the bypass breaker reset.
R
e
s
e
t
R
e
s
e
t
to "OFF".
MAIN SW
EXT.
BATT
to "OFF".
to "OFF".
EXT.
BATT
to "OFF".
③ Reset BYPASS OC
.
Tripped
Reset
Press the BYPASS OC
breaker firmly to
reset.
and holding it for 1 second.
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