Daily Inspection; Periodic Inspection - Mitsubishi A950GOT User Manual

7.2 Daily Inspection

Daily inspection items are as follows.
Number Inspection Item
1 Module mounting status
Loose termi-
nal screws
Proximate
Connection
2 solderless ter-
status
minals
Loose con-
nectors

7.3 Periodic Inspection

Inspection items to be checked once or twice in six months or one year are as follows.
The following inspection should also be performed when equipment has been moved or modified or the wir-
ing changed.
Number Inspection Item
Ambient tem-
perature
Surrounding
1
environment
Ambient
humidity
Atmosphere
2 Power supply voltage check
Looseness
Mounting sta-
3
Dirt, foreign
tus
matter
Loose termi-
nal screws
Proximate
Connection
4 solderless ter-
status
minals
Loose con-
nectors
Inspection Method
Check for loose mounting
screws and disconnected
cover
Retighten screws with screw-
driver
Visual check
Visual check
Inspection Method
Make measurement with ther-
mometer or hygrometer
Measure corrosive gas
24VDC
Measure voltage across termi-
nals
Move module
Visual check
Retighten screws with screw-
driver
Visual check
Visual check
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Criterion
Securely mounted Retighten screws
Not loose Retighten terminal screws
Proper intervals Correct
Retighten connector fixing
Not loose
screws
Criterion
Display sec-
0 to 40
tion
For use in enclosure, tempera-
Other portions
0 to 55
ture inside enclosure is ambi-
ent temperature
10 to 90%RH
No corrosive gas
20.4DC to 26.4V Change supply power
Should be mounted firmly Retighten screws
No dirt, foreign matter sticking Remove, clean
Not loose Retighten terminal screws
Proper intervals Correct
Retighten connector fixing
Not loose
screws
7.2 Daily Inspection
1
Action
2
3
4
Action
5
6
7
8
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