Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 136

4. HOW TO USE THE POINT TABLE
b) When using the shortest rotation specification ([Pr. PT03] = _ 1 _ _)
When the position data of 270.000 degrees is specified, the servo motor rotates in the CCW
direction.
When the position data of -90.000 degrees is specified, the servo motor rotates in the CCW
direction.
If the position data of 270.000 degrees is specified when the current position is at 90, the
distances in the CCW and CW are the same. In such a case, the servo motor rotates in the
CCW direction.
Current
position
Current
position
Current
position
(90)
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Target
position
(270)
Target
position
(-90)
Target
position
(270)