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6 Maintenance
NA-series Programmable Terminal Hardware User’s Manual (V117)
6-1 Periodic Maintenance and Inspection
6
6-1-2 Periodic Inspection
*1. The ambient temperature and ambient humidity criteria depend on conditions. Refer to 1-4-1 General Specifi-
cations on page 1-7.
2Ambient
environ-
ment
Make sure that the ambient
temperature (e.g., the temper-
ature inside the control panel)
is suitable.
0 to 50°C
*1
Use a thermometer to check the
temperature and ensure that the
ambient temperature remains
within the allowable range.
Make sure that the ambient
humidity (e.g., the humidity
inside the control panel) is suit-
able.
The relative humidity
must be 10% to 90%
with no condensation.
*1
Use a hygrometer to check the
humidity and ensure that the ambi-
ent humidity remains within the
allowable range. Be careful of the
condensation caused by tempera-
ture changes.
Check that the NA Unit is not in
direct sunlight.
Not in direct sunlight Protect the NA Unit if necessary.
Check for accumulation of dirt,
dust, salt, metal powder, etc.
No accumulation Clean and protect the NA Unit if
necessary.
Check for water, oil, or chemi-
cal sprays that may land on the
NA Unit.
No spray Clean and protect the NA Unit if
necessary.
Check for corrosive or flamma-
ble gases in the area of the NA
Unit.
No corrosive or flam-
mable gases
Check by smell or use a sensor.
Check for direct vibration or
shock placed on the NA Unit.
Vibration resistance
and shock resistance
must be within specifi-
cations.
Install cushioning or shock absorb-
ing equipment if necessary.
Check for noise sources near
the NA Unit.
No noise source Either separate the NA Unit away
from noise source or protect the
NA Unit.
3 Installa-
tion and
wiring
Check the mounting brackets
to see if they are loose.
No looseness Tighten loose screws with a Phil-
lips-head screwdriver.
Check that cable connectors
are fully inserted and locked.
No looseness Fully insert and lock the connector
Check for loose screws in
external wiring.
No looseness Tighten loose screws with a Phil-
lips-head screwdriver.
Check crimp connectors in
external wiring.
Adequate spacing
between connectors
Check visually and adjust if neces-
sary.
Check for damaged external
wiring cables.
No visible damage Check visually and replace cables
if necessary.
4 User-ser
viceable
parts
Check the brightness of the
backlight.
The backlight must be
sufficiently bright.
Backlight life (at room
temperature and
humidity): 50,000 hours
Contact your OMRON representa-
tive to request replacement.
Check whether the
CJ1W-BAT01 Battery Set has
reached its service life or
whether it is passed the expira-
tion date.
Service life expectancy
is 5 years.
Replace the Battery when its ser-
vice life expectancy has passed
even if a Battery error has not
occurred.
5 Touch
panel
position
input
accuracy
Are the touched positions and
the positions that respond off-
set?
The positions must not
be offset.
Calibrate the touch panel with the
System Menu.
No. Item Inspection Criteria Correction
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