Mitsubishi Electric MELSERVO-J4 Instruction Manual page 280

7. PARAMETERS
No./ Setting
symbol/name digit
PA14 Select a rotation direction of the servo motor or travel direction of the linear servo
motor for when turning on ST1 (Forward rotation start) or ST2 (Reverse rotation start).
*POL
Rotation
direction
selection/trav
el direction
selection
The following shows the servo motor rotation directions.
The positive/negative directions of the linear servo motor are as follows.
Positive direction
Setting range: 0,1
PA15 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)
*ENR
Set a numerator of the electronic gear, for when selecting "A-phase/B-phase pulse
Encoder
electronic gear setting (_ _ 3 _)" of "Encoder output pulse setting selection" in
output pulses
[Pr. PC19].
The maximum output frequency is 4.6 Mpulses/s. Set the parameter within this range.
Setting range: 1 to 4194304
PA16 Set a denominator of the electronic gear for the A/B-phase pulse output.
*ENR2 Set a denominator of the electronic gear, for when selecting "A-phase/B-phase pulse
electronic gear setting (_ _ 3 _)" of "Encoder output pulse setting selection" in
Encoder
[Pr. PC19].
output pulses
2
Setting range: 1 to 4194304
Servo motor rotation direction/linear servo motor
Setting
value
When positioning
address increases
0 CCW or positive direction CW or negative direction
1 CW or negative direction CCW or positive direction
Forward rotation (CCW)
Negative direction
Secondary side
Secondary side
Primary side
LM-H3/LM-F series
Function
travel direction
When positioning
address decreases
Reverse rotation (CW)
Positive direction
Primary side
Positive direction
Negative direction
LM-U2 series
7 - 23
Initial
value
[unit]
0
Negative direction
Table
Secondary side
Primary side
LM-K2 series
4000
[pulse/
rev]
1
Control mode
CP CL PS