Mitsubishi Electric MELSERVO-J4 MR-J4 TM Instruction Manual page 142

5. PARAMETERS
No./ Setting
symbol/name digit
PA14 Select a rotation direction or travel direction.
*POL
Rotation
direction
selection/trave
l 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
*ENR
multiplication by 4)
Encoder
Selecting "Dividing ratio setting (_ _ 1 _)" of "Encoder output pulse setting selection"
output pulses
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].
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 when selecting "A-phase/B-phase pulse
electronic gear setting (_ _ 3 _)" of "Encoder output pulse setting selection" in [Pr.
Encoder
PC03].
output pulses
2 Selecting "Dividing ratio setting (_ _ 1 _)" of "Encoder output pulse setting selection"
in [Pr. PC03] will disable the setting value.
Setting range: 1 to 4194304
Servo motor rotation direction/linear servo motor
Setting
value
Positioning address
increase
CCW or positive
0
direction
1 CW or negative direction
Forward rotation (CCW)
Secondary side
Negative direction
Secondary side
Primary side
LM-H3/LM-F series
Function
travel direction
Positioning address
decrease
CW or negative direction
CCW or positive
direction
Reverse rotation (CW)
Positive direction
Primary side
Positive direction
Negative direction
LM-U2 series
5 - 21
Initial
value
[unit]
0
Negative direction
Table
Secondary side
Primary side
LM-K2 series
4000
[pulse/
rev]
1