Mitsubishi Electric MELSERVO-J3 Series Manual page 350

Part 5: Common Reference Material
6) Adjusting the lost motion compensation non-sensitive band
When the lost motion is compensated twice around a quadrant change point, set [Pr. PX42 Lost
motion compensation non-sensitive band]. Increase the setting value so that the lost motion is not
compensated twice. Setting [Pr. PX42] may change the compensation timing. Adjust the lost
motion compensation timing of (9) (b) 5) of this section.
Travel
direction
Before timing delay compensation
5 - 165
Compensation
After timing delay compensation