Yaskawa Sigma Mini - Manual (Page 222)

INSPECTION AND MAINTENANCE
5.1.1 Servomotors
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5.1 Servo Drive Inspection and Maintenance
This section describes the basic inspections and maintenance for Servomotors and
Servopacks.
5.1.1 Servomotors
For inspection and maintenance of Servomotors, follow the simple, daily inspection proce-
dures in the table below.
The Servomotors are brushless. Simple, daily inspection is sufficient. The inspection and
maintenance frequencies in the table are only guidelines. Increase or decrease the frequen-
cy to suit the operating conditions and environment.
Item Frequency Procedure Comments
Vibration and
noise
Daily Touch and listen. Levels higher than normal?
Appearance According to
degree of
contamination
Clean with cloth or
compressed air.
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Insulation
resistance
measurement
At least once a
year
Disconnect Servopack and
test insulation resistance at
500 V. Resistance is normal if
it exceeds 10 MΩ. (See note
below)
Contact your Yaskawa
representative if the
insulation resistance is
below 10 MΩ.
Replace oil seal At least once
every 5,000
hours
Remove Servomotor from
machine and replace oil seal.
Applies only to motors with
oil seal.
Overhaul At least once
every 20,000
hours or 5 years
Contact your Yaskawa
representative.
The customer should not
disassemble and clean the
Servomotor.
Note Measure across the Servomotor FG and the U-phase, V-phase, or W-phase pow-
er lead.
During inspection and maintenance, do not disassemble the Servomotor.
If disassembly of the Servomotor is required, contact your Yaskawa representative.
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