YASKAWA Sigma Mini SGMM Series User Manual page 223

INSPECTION AND MAINTENANCE
5.1.1 Servomotors
5.1 Servo Drive Inspection and Maintenance
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.
5
During inspection and maintenance, do not disassemble the Servomotor.
If disassembly of the Servomotor is required, contact your Yaskawa representative.
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This section describes the basic inspections and maintenance for Servomotors and
Servopacks.
Item Frequency
Vibration and Daily
noise
Appearance According to
degree of
contamination
Insulation At least once a
resistance year
measurement
Replace oil seal At least once
every 5,000
hours
Overhaul At least once
every 20,000
hours or 5 years
Note Measure across the Servomotor FG and the U-phase, V-phase, or W-phase pow-
er lead.
— 5-2 —
Procedure
Touch and listen. Levels higher than normal?
Clean with cloth or ---
compressed air.
Disconnect Servopack and Contact your Yaskawa
test insulation resistance at representative if the
500 V. Resistance is normal if insulation resistance is
it exceeds 10 MΩ. (See note below 10 MΩ.
below)
Remove Servomotor from Applies only to motors with
machine and replace oil seal. oil seal.
Contact your Yaskawa The customer should not
representative. disassemble and clean the
Servomotor.
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