YASKAWA SGDB-15VN User Manual page 281

Maintenance and Inspection
12.2.2 SERVOPACKS
Symptom
Abnormal noise .
12
Cause
Mechanical mounting incorrect
Bearing defective
Equipment causing vibrations
Conditions
Check whether Servo- Tighten the mounting screws.
motor mounting
screws are loose.
Check whether cou- Align the coupling,
piing is misaligned.
Check whether the Balance the coupling.
coupling is unbal-
anced.
Check noise and vibra- Contact your Yaskawa representative.
tion near the bearing.
Check the movable Consult with the equipment manufac-
parts for foreign mat- turer.
ter, damage or de-
formation.
12 -12
Remedy