4 infinite length positioning – Yaskawa MP920 User's Manual Design User Manual

Page 424

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8.4 Infinite Length Positioning

8-7

8

8.4

Infinite Length Positioning

Infinite Length Positioning is a function that automatically updates the machine position, pro-
gram position, and current values at regular intervals according to fixed parameter settings. The
function can be used for repeated positioning in one direction.

• The following tables list the parameters related to Infinite Length Positioning.

• Procedure for Specifying Incremental Mode in Infinite Length Mode Axis

A relative reference can be set in Infinite Length Mode Axis at the same range as that
for Finite Length Mode Axis. (Range: -214783648 to 214783647.)

Name

Parameter No.

Setting

Range

Remarks

Servo Module
Function Selection
Flags

Fixed parameter 17
bit 5

0, 1

0: Finite Length Mode
1: Infinite Length Mode

POSMAX

Fixed parameter 22 1 to 2

31

-1

1 = 1 reference unit

POSMAX

0

EXAMPLE

0

°

180

°

270

°

90

°

ZRN [X1] 0;
INC MOV [X1] 180.0;
INC MOV [X1] 2700.0; Move clockwise 7.5 rotations to 0

°.

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