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5
Inspection
5.1
Care and Daily Inspection
In order to use the UPS safely over the long term, perform the following care and daily
inspection regularly.
Warning
Electric Do not remove the cover of the UPS.
shock
Since there are some portions with high voltage in the inside of the UPS,
there is fear of an electric shock.
Electric
shock
Failure
When inspecting or maintaining the connection device (a
device getting connected to the UPS) or the UPS, turn off power
of the connection device and stop the operation of UPS. And
turn off the breaker of the distribution board and cut off
connection of AC input terminal.
There is fear of an electric shock.
Electric
shock
Perform the battery and cooling fan replacement by
maintenance personnel.
There is fear of an electric shock.
Damage When performing the rolling blackouts or when cutting off an
input power supply, perform them after stopping the operation
of the UPS, with reference to Chapter 4.2 " Turning off the UPS" .
The stop of operation can be confirmed by slow blink (in the
cycles of approximately 1.6 sec.) of the RUN LED (green).
If cutting off an input power supply when the UPS is operating (the RUN
LED is lighting), the UPS switches to the battery operation since it will be
in the same state as a power failure.
Performing such unnecessary battery operation leads to a shortening of a
cycle of battery replacement.
Caution
Summary of Contents for M-UPS050AD2B
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