IAI America ISPDACR-ESD - Manual (Page 88)

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12. Motor Replacement Procedures
(17) Correcting the position deviation
[1] Turn on the controller power.
Next, use a PC software or teaching pendant to perform home return and confirm the home
position. Repeat this several times to confirm that the actuator returns to the same home position
every time.
[2] Checking the position deviation
The actuator may have moved slightly from the position assumed before replacing the motor.
Accordingly, select any position number that lets you check the deviation between the positions
before and after replacing the motor, and perform positioning to this position to measure the
deviation.
[3] In the case of a X-SEL or SSEL controller, reflect the amount of deviation in the parameter for
home preset. In the case of a SCON controller, reflect it in the parameter for home return offset.
[For the methods to set these parameters, refer to 12.3, “How to Set the Home Preset and Home
Return Offset.”]
* If the position is deviated significantly (by at least one rotation of the ball screw = at least the
lead length), or if the actuator does not return to the same home position in each of the
repeated home return operations, reinstall the motor according to the procedure explained
herein.
The slider may have been positioned at a wrong distance from the reference surface.
(18) Checking the operation after replacing the motor
After the motor has been replaced, operate the actuator continuously to confirm absence of vibration
or abnormal noises.