17 - 2
17.1 Daily Inspection
17
MAINTENANCE AND
INSPECTION
18
ERROR MESSAGE
AND SYSTEM
ALARM
APPENDICES
17.1 Daily Inspection
Daily inspection items
Refer to the following for the model names of the protection sheet or the replacement procedure.
Section 8.5 Protective Sheet
17.2 Periodic Inspection
Yearly or half-yearly inspection items
The following inspection should also be performed when equipment has been moved or modified or the
wiring changed.
No. Inspection Item
Inspection
Method
Criterion Action
1 GOT mounting status
Check for loose
mounting screws.
Securely mounted
Retighten screws within the
specified torque range
2
Connection
status
Loose terminal screws
Retighten screws
with screwdriver
Not loose Retighten terminal screws
Proximate solderless
terminals
Visual check Proper intervals Correct
Loose connectors Visual check Not loose
Retighten connector fixing
screws
3
Usage
status
Dirt on protection sheet Visual check Not outstanding Replace with new one
Foreign material
attachment
Visual check
No foreign matter
sticking
Remove clean
No. Inspection Item Inspection Method Criterion Action
1
Surrounding
environment
Ambient
temperature
Make measurement
with thermometer or
hygrometer
Measure corrosive
gas
Display section 0 to 50°C
For use in control panel,
temperature inside control
panel is ambient
temperature
Other portions 0 to 55°C
Ambient
humidity
10 to 90%RH
Atmosphere No corrosive gas
2 Power supply voltage check
24VDC Measure
voltage across
terminals.
20.4 to 26.4VDC Change supply power
3
Mounting
status
Looseness Move module Should be mounted firmly Retighten screws
Dirt, foreign
matter
Visual check
No dirt, foreign matter
sticking
Remove, clean
4
Connection
status
Loose
terminal
screws
Retighten screws with
screwdriver
Not loose Retighten terminal screws
Proximate
solderless
terminals
Visual check Proper intervals Correct
Loose
connectors
Visual check Not loose
Retighten connector fixing
screws
5Battery
Check the system
alarm (error code:
500) report on the
Alarm Information
screen (Section 13.4
Alarm Information).
(Preventive maintenance)
Replace with new battery
when the current battery
has reached the specified
life span, even if battery
voltage is not displayed.
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