Mitsubishi Electric QD77MS User Manual page 706

This setting will produce an error for the true machine value, but it cannot
be helped. This error is as follows.
7422012/166723584
2362500

AP (Number of pulses per rotation) = 4194304 [PLS]
S
(Movement amount per rotation)

It is equivalent to an about 86.9 [
(5) Number of pulses/ movement amount at linear servo use
Simple Motion module
Command Control AP
value unit
AL
Calculate the number of pulses (AP) and movement amount (AL
the linear encoder in the following conditions.
Linear encoder resolution =
Linear encoder resolution: 0.05[  m] per PLS
1[PLS] Number of pulses (AP) [PLS]
=
0.05[  m]
Set the number of pulses in "[Pr.2] Number of pulses per rotation (AP)", the
movement amount in "[Pr.3] Movement amount per rotation (AL)", and the
unit magnification in "[Pr.4] Unit magnification (AM)" in the actual setting.
(Note): Set the same value in AP, AL, and AM as the value set in the servo
parameter "Linear encoder resolution - Numerator (PL02)" and
"Linear encoder resolution - Denominator (PL03)".
Refer to each servo amplifier instruction manual for details.
When "Linear encoder resolution - Numerator (PL02)" is set to 1 [
"Linear encoder resolution - Denominator (PL03)" is set to 20 [
values of AP, AL and AM are shown below.
AP = 20 ..........[Pr.2]
AL = 1.0 ....... ...[Pr.3]
AM = 1 ..........[Pr.4]
- 1  100 = -8.69  10
/166723584
= 135000.0 [
= 135000.0 [

m] error in continuous 1km feed.
Servo
PLS
amplifier
AM
Feedback pulse
Number of pulses (AP)
Movement amount (AL
Movement amount (AL) [  m]
13 - 18
Chapter 13 Control Sub Functions
–6
[%]

m]
 

m]
 
Linear servo motor
PLS
PLS
Linear encoder
AM)

20
=
1.0
Reduction ratio
7/53 1/3

AM) for


m] and

m], the