Mitsubishi Electric Melservo-J5 MR-J5 Series - Page 329

10 USING A LINEAR SERVO MOTOR
10.3 Startup [A]
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10
Setting
Setting of linear servo motor series and linear servo motor type
Set the linear servo motor series and linear servo motor type with [Pr. PA17 Servo motor series setting] and [Pr. PA18 Servo
motor type setting].
Setting of linear encoder direction and linear servo motor direction
Set [Pr. PC45.0 Encoder pulse count polarity selection] so that the positive direction of the linear servo motor matches the
increasing direction of the linear encoder feedback.
■Servo parameter setting method
1. Confirm the positive direction of the linear servo motor. [Pr. PA14 Travel direction selection] determines the relation of the
travel direction of the linear servo motor under commands as follows.
The positive and negative directions of the linear servo motor are as follows.
2. Check the increasing direction of the linear encoder.
3. If the positive direction of the linear servo motor matches the increasing direction of the linear encoder, set [Pr. PC45.0
Encoder pulse count polarity selection] to "0" (encoder pulse increasing direction in the servo motor CCW or positive
direction). If the count directions of linear servo motor and linear encoder do not match, set [Pr. PC45.0] to "1" (encoder
pulse decreasing direction in the servo motor CCW or positive direction).
Servo parameter Description
PC45.0 Encoder pulse count polarity selection
0: Encoder pulse increasing direction in the servo motor CCW or positive direction
1: Encoder pulse decreasing direction in the servo motor CCW or positive direction
Initial value: 0 (encoder pulse increasing direction in the servo motor CCW or positive direction)
Setting value of [Pr. PA14] Travel direction of linear servo motor
Address increasing command Address decreasing command
0 Positive direction Negative direction
1 Negative direction Positive direction
Negative
direction
Negative
direction
Secondary
side
Positive
direction
Secondary
side
Table
Positive
direction
Primary
side
Secondary
side
Positive
direction
Primary
side
Primary
side
Negative
direction
LM-H3/LM-F series
Positive
direction
Secondary
side
Negative
direction
Primary
side
LM-AJ seriesLM-U2 series LM-K2 series