3) position control block diagram – Yaskawa Sigma II Series DC Power Input SGMAJ User Manual

Page 228

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8.6 Operating Using Position Control

8-55

8

(3) Position Control Block Diagram

A block diagram for position control is shown below.

Kp

M

Pn201

Pn204

Pn202

Pn203

+

-

Pn102

Pn203

Pn202 Pn10A

Pn107

Pn109

PG

Pn200.0

Pn108

B

A

B

A

+

+ +

Differ-
ential

Smoothing

Error
counter

Feed-
forward

Feed-for-

ward fil-

ter time

constant

Bias

Speed
loop

Current
loop

Dividing

Servomotor

Reference
pulse

PG signal
output

SERVOPACK (in position control)

Encoder

Bias adding
width

× 4

× 4

× 2

× 1

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