Mitsubishi Electric MELSEC iQ-R Series User Manual page 233

■Number of pulses/movement amount at linear servo use
Motion module
Command
Control
unit
value
Calculate the number of pulses (AP) and movement amount (AL  AM) for the linear encoder in the following conditions.
Linear encoder resolution =
Linear encoder resolution: 0.05 [m] per pulse
1 [pulse]
=
0.05 [μm] Movement amount (AL × AM) [μm]
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.
Set the same value in AP, AL, and AM as the value set in the servo parameters "Electronic gear numerator (PA06)",
"Electronic gear denominator (PA07)", "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 [m], "Linear encoder resolution - Denominator (PL03)" is set
to 20 [m], "Electronic gear numerator (PA06)" is set to "1", and "Electronic gear denominator (PA07)" is set to "1", the values
of AP, AL, and AM are shown below.
Setting value
AP = 20
AL = 1.0
AM = 1
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AP
Servo amplifier
Pulse
AL × AM
Number of pulses (AP)
Movement amount (AL × AM)
Number of pulses (AP) [pulse]
Setting item
[Pr.2]
[Pr.3]
[Pr.4]
search engine
Linear servo motor
Pulse
Pulse
Feedback pulse
Linear encoder
20
=
1.0
8 CONTROL SUB FUNCTIONS
8.2 Functions for Compensating the Control
8
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