Yaskawa MP3200 CPU - Manual (Page 32)

4 Inspections
E-30
Periodic Inspections
Perform the following inspections at least once a year.
* If the Machine Controller is installed in a panel, the temperature
inside the panel is the ambient temperature.
Inspection Item
Inspection
Period
Description Correction
Ambi-
ent
condi-
tions
Ambient
tempera-
ture
*
At least 1 or 2
times every 6
to 12 months
Measure the
temperature and
humidity with a
hydrometer and
thermometer and
measure corro-
sive gas. They
must be within
specifications.
Remove
sources of
contamina-
tion or
improve the
installation
environ-
ment.
Ambient
humidity
Atmo-
sphere
Visual exterior
inspection
At least 1 time
a year
There must be
no dirt, dust, oil,
or other foreign
matter on the
Machine Con-
troller.
Clean the
Machine
Controller
with air or a
cloth.
Loose screws
There must be
no looseness in
terminal screws
or connector
lock screws.
Tighten the
screws.