4-1
IM 71M02D04-01E 10th Edition: 2012.12.01
4. Maintenance and Inspection
Do not disassemble the motor and the drive.
Make sure to conduct an overall inspection at least every 20,000 hours of operation or every
5 years. Depending on the operating environment and operating conditions, it is appropriate
to carry out inspections at shorter intervals.
Depending on the result of inspection, the motor or the drive may require servicing or
replacing.
If there are any problems with the external wiring or usage environment/operating conditions,
solve such problems first and then repair or replace the motor or the drive.
Accumulated dust and dirt may cause failure; clean the motor and drive regularly to maintain
good usage conditions.
4.1 Daily
Inspection
Inspect the motor and the drive before the start of operation to check that there are no
problems.
If you find any abnormalities, remove the causes and solve the problems before the start of
operation. The daily inspection check list covers the minimum items that should be checked
to ensure that there are no problems at the start of operation. Make sure the motor and the
drive are in good conditions when using them, so that the operation will be stable and
problem free.
Check item
Inspection
Judgment criteria
Power supply
Is the input voltage within the standard
range?
200 ~ 230V + 10 to15% (200VAC system)
100 ~ 115V + 10 to15% (100VAC system)
Interface power
supply
Is the input voltage within the standard
range?
Depends on the interface specification
Peripheral
environment
Is the ambient temperature appropriate?
0 ~ 40
°
C (motor)
0 ~ 50
°
C (drive)
Is the humidity appropriate?
20 ~ 85% RH (motor)
20 ~ 90% RH (drive)
Is there dust?
There must be no dust.
Is there any condensation?
There must be no condensation.
Wiring condition
Are all connectors fixed securely?
The connectors must not be loosened.
Are all screws of external wiring fixed?
The screws must not be loosened.
Are there any cables that are close to
getting cut?
There must be no abnormality in appearance
and current conduction.
Is there any interference between a cable
and moving part?
There must be no contacts.
Installation condition
Is the main body fixed securely?
The main body must not be loosened.
Is the load fixed securely?
The load must not be loosened.
Are the driving sound and vibration normal?
There must not be any worse sounds or
vibrations than during usual operation.
Conditions of internal
mechanical parts
Are all bearings normal?
Bearings must rotate smoothly without play.
Are the driving sound and vibration normal?
There must not be any worse sounds than
usual operation.
Appearance
Are there any scratches, damages, dirt,
deformation or discoloration?
There must be no scratches, damages, dirt,
deformation and discoloration.
