Mitsubishi Electric MELSERVO-J3 Series Handbook page 60

Part 2: Review on Replacement of MR-J3-_A_ with MR-J4-_A_
MR-J3-_A_
No. Name and function
PA14 Rotation direction selection
Turn off the power and then on again after setting
the parameter to validate the parameter value.
Select servo motor rotation direction relative to the
input pulse train.
Servo motor rotation direction
[Pr. PA14]
When forward
setting
rotation pulse
is input
0 CCW
1 CW
Forward rotation (CCW)
Initial
value
0
When reverse
rotation pulse is input
CW
CCW
Reverse rotation (CW)
MR-J4-_A_
No. Name and function
PA14
Same as MR-J3
Rotation direction selection/travel direction selection
Select a servo motor rotation direction relative to the
input pulse train.
Servo motor rotation direction
Setting
value When forward rotation
pulse is input
CCW or positive
0
direction
CW or negative
1
direction
The following shows the servo motor rotation
directions.
Forward rotation (CCW)
Setting range: 0, 1
2 - 27
Initial
value
0
When reverse rotation
pulse is input
CW or negative
direction
CCW or positive
direction
Reverse rotation (CW)
Control
mode
P