7. Maintenance and Inspection
7.1 Periodic Inspection
7-3 ME0342-4B
No.
Countermeasures
4
Connection
status
loose? (Motor encoder
cable, field network
cable, stop circuit and
absolute battery, etc.)
No looseness
Insert until the lock engages.
Wiring cable frayed?
No visual
abnormalities
Check visually and replace the cable.
5
battery
Absolute battery (AB-
beyond expiry date or
lifespan?
3 years and
should not
exceed the date
written on a
sticker adhered
to the battery
Even if the absolute battery is free of
errors, replace it if the expiry date has
passed.
Refer to [7.4.1 How to Replace
Absolute Battery] for how to make
replacement.
6
Preventive/
predictive
maintenance
function
Preventive/predictive
maintenance alarms
generated?
No alarm
generated
Refer to [7.5 Preventive Maintenance
Function] and [7.6 Predictive
Maintenance Function] for
countermeasures.
7.2 Requests When Replacing Units
ME0342-4B 7-4
7.2 Requests When Replacing Units
Pay attention to the following precautions when replacing units after discovering a fault during
inspection.
• Unit replacement should be conducted with the power off.
• After replacement, check that the new unit does not have any errors.
• If returning a faulty unit for repairs, write out the nature of the error in as much detail as possible
and attach it to the product.
• Be sure to back up position data, parameters and PLC data just in case something goes wrong.
[Items for Reference]
• How to Replace Absolute Battery
[7.4.1 How to Replace Absolute Battery]
• How to Replace Fan Unit
[7.4.2 How to Replace Fan Unit]
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