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Periodic Inspections
Perform the following inspections at least once a year.
Inspection Item
Ambient
tempera-
*
ture
Ambi-
ent
Ambient
condi-
humidity
tions
Atmo-
sphere
Visual exterior
inspection
Loose screws
* If the Machine Controller is installed in a panel, the temperature
inside the panel is the ambient temperature.
Inspection
Period
At least 1 or 2
times every 6
to 12 months
At least 1 time
a year
Description
Measure the
temperature and
humidity with a
hydrometer and
thermometer and
measure corro-
sive gas. They
must be within
specifications.
There must be
no dirt, dust, oil,
or other foreign
matter on the
Machine Con-
troller.
There must be
no looseness in
terminal screws
or connector
lock screws.
4 Inspections
Correction
Remove
sources of
contamina-
tion or
improve the
installation
environ-
ment.
Clean the
Machine
Controller
with air or a
cloth.
Tighten the
screws.
E-31
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