iii
Caution about Safety
List of important warnings
The important warnings described in this manual are as follows.
Warning
”
indicates that death or serious injury may result, if the
UPS is not used correctly.
Electric shock Do not remove the cover of the UPS.
Since there are parts of high voltage inside the UPS, there is the fear
of an electric shock.
Caution
”
indicates that slight or moderate injury may result or
that the UPS or user
’
s property may be damaged, if the UPS is
not used correctly.
Put neither a stick nor a finger into the cooling fan or the
vent hole.
Electric shock
Injury
There is the fear of an electric shock or an injury.
Electric shock The maintenance other than daily inspection such as the
replacement of battery or cooling fan must be performed
by the specialist engineer.
There is the fear of an electric shock.
Connect a grounding wire to a ground terminal. (class D
grounding)
There is the fear of an electric shock.
A commercial power source usually has the electrodes of
a grounding side and an ungrounded side separately from
a grounding electrode (earthing). Be sure to check before
connecting.
If connected in reverse, there is the fear of the malfunction by the
noise or an electric shock.
When inspecting or maintaining the connection device (a
device getting connected to the UPS) or the UPS, turn off
the connection device and the UPS. And turn off the input
breaker of the back of the UPS, and cut off connection to
the AC input terminal (R, S).
There is the fear of an electric shock.
Warning
Caution
Summary of Contents for M-UPS050AD1B
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