BY35S / BY50S / BY80S / BY120S
3
19
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Operation during recovery from a power failure
• If a power failure or abnormal power input is resolved while the UPS supplies power, it returns
to the commercial power output status automatically. Charging the consumed battery starts.
• If a power failure or abnormal power input is resolved after the battery is discharged complete-
ly and power output is stopped, the UPS restarts automatically and resumes power output.
The expended battery begins to charge.
Setting switch
2
can be used to select whether or not auto restart is performed.
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Page
24
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Stop procedure
Operation
Turn OFF the power switch of the UPS.
• The power output from the UPS stops.
• Even if you turn off the power switch, if AC is supplied from commercial power, the battery is
automatically charged.
Status
indicator
Battery
replacement
Beep Output Charging Description
None OFF ON
There is AC input
Power switch "OFF"
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