Mitsubishi Electric MELSERVO-J4 series, Instruction Manual

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5 PARAMETERS
5.2 Detailed list of parameters
187
5
PA14
*POL
Rotation direction
selection/travel
direction selection

Select a rotation direction or travel direction.
The torque polarity can be changed with the combination of this parameter and [Pr. PC29 Torque POL
reflection selection].
• At position mode/velocity mode
• At torque mode
The following shows the servo motor rotation directions.
The positive/negative directions of the linear servo motor are as follows.
Setting range: 0, 1
0
PA15
*ENR
Encoder output
pulses

Set the encoder output pulses from the servo amplifier by using the number of output pulses per revolution,
dividing ratio, or electronic gear ratio. (after multiplication by 4)
Selecting "Dividing ratio setting (_ _ 1 _)" of "Encoder output pulse setting selection" in [Pr. PC03] will divide
the travel distance [pulse] of the linear encoder by the setting value.
Set a numerator of the electronic gear for the A/B-phase pulse output when selecting "A-phase/B-phase
pulse electronic gear setting (_ _ 3 _)" of "Encoder output pulse setting selection" in [Pr. PC03].
Refer to the following for details.

Page 635 Encoder output pulse setting method
The maximum output frequency is 4.6 Mpulses/s. Set the parameter within this range.
Setting range: 1 to 4194304
4000
[pulse/rev]
No./symbol/
name Setting
digit Function Initial
value
[unit]
Setting value Servo motor rotation direction/linear servo motor travel direction
Position mode
Positioning address increase/
Velocity mode
Speed command: Positive Position mode
Positioning address decrease/
Velocity mode
Speed command: Negative
CCW or positive direction 0 CW or negative direction
1 CW or negative direction CCW or positive direction
Setting value Servo motor rotation direction/travel direction
Torque mode
Torque command: Positive Torque mode
Torque command: Negative
CCW or positive direction 0 CW or negative direction
CCW or positive direction
1 CCW or positive direction
[Pr. PA14] [Pr. PC29]
0 _ _ _ : Enabled
1 _ _ _ : Disabled CCW or positive direction
CW or negative direction
1 _ _ _ : Disabled
0 _ _ _ : Enabled
CW or negative direction
CW or negative direction
Forward rotation (CCW)
Reverse rotation (CW)
Secondary side
Primary side
Positive direction
Negative direction
Negative direction
Positive
direction
Secondary side
Primary side
Negative direction
Positive direction
Table
Primary side
Secondary
side
Table
LM-H3/LM-F series LM-U2 series LM-K2 series