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6. INSPECTION AND MAINTENANCE
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When the bypass breaker “BYPASS OC” on the back of the UPS trips, the control panel changes to the state below and power supply
from the output outlet stops. Follow the procedure below to reset the breaker.
Step
Operation
Remarks
1
1
When the bypass breaker trips, the UPS changes to the state below.
Check the state of the UPS.
Buzzer sound:
Beep (continuous tone)
LED display of control panel
[ALARM
(red)
] Lit
[INPUT (green)] Lit
[OUTPUT (green)] OFF
[ECO (green)] OFF
[INV.ON
(green)] Blinking
The bypass breaker on the back of the UPS trips
When the capacity of the connected load equipment
exceeds the output capacity of the UPS, the bypass
breaker will trip.
Press
to stop the buzzer.
2
2
Unplug the UPS input plug.
For the shutdown procedure, see “4.2 Shutting
Down the UPS”.
When the bypass breaker is reset while the UPS
is running, [ALARM (red)] does not turn OFF
from a lit state until the UPS is shut down.
Always shut down the UPS.
3
3
Check that there is no abnormality with the connected load equipment, and
reduce the load capacity.
Be sure that the capacity of the connected load
equipment is less than or equal to the output
capacity of the UPS.
4
4
Reset the bypass breaker.
Be sure to push in the breaker.
5
5
Insert the UPS input plug.
After approximately 12 seconds, the UPS automatically starts up.
The amount of time until UPS startup depends on
the setting value of “UPS Operation Upon Power
Recovery” and “Power Outage Verification Time” in
the setting menu. If the UPS does not start after at
least 12 seconds, hold down
on the control
panel for at least 1 second to start the UPS.
6
6
Check that the UPS operates normally.
[ALARM (red)] OFF
[INPUT (green)] Lit
[OUTPUT (green)] Lit
[ECO (green)] OFF
[INV.ON (green)] Lit
FE
TOTAL OUTPUT MAX.800W 10A
State when UPS is running normally.
“BYPASS OC” has tripped.
Be sure to push in and reset
the breaker.
Trip
Reset
TOTAL OUTPUT MAX.800W 10A