8.4 Equipment Structure
8.4.1 Minimum Angle of Oscillation
8-8
8.4
Equipment Structure
8.4.1
Minimum Angle of Oscillation
•
If you use a SGM7D Servomotor for oscillating rotation, rotate the Servomotor 90° or more at
least once every 10,000 round-trip operations to ensure sufficient bearing lubrication.
Consult your Yaskawa representative if you cannot perform this operation.
•
If you use a SGMCV or SGMCS Servomotor for oscillating rotation, rotate the Servomotor 90°
or more at least once a day to ensure sufficient bearing lubrication.
Consult your Yaskawa representative if you cannot perform this operation.
8.4.2
Precautions on Passing the Origin
•
If you use a Servomotor with an Incremental Encoder, you must perform an origin return
operation after you turn ON the power supply.
If you use the SERVOPACK’s origin pulse (phase C) output, rotate the Direct Drive Servomo-
tor at least two turns before you start the origin return operation.
If the Direct Drive Servomotor cannot be rotated two or more times, perform an origin return
operation at a motor speed of 6 min
-1
or lower.
•
If the equipment structure prevents the Direct Drive Servomotor from rotating a complete
turn, install the Servomotor so that the origin within one encoder rotation is passed.
