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Yaskawa MP920 User's Manual Design User Manual

Page 471

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10 Absolute Position Detection

10.3.2 Infinite Length Mode Axis

10-26

The following programming example (ladder logic program) is for the flowchart shown
above. The axis used here is axis No. 1 of module No. 1. Change the motion parameter reg-
ister number if the module and axis numbers are different.

IFON
Toggle Buffer Enabled Flag ON

IFON

ELSE

First scan or Servo Power Supply Turned Back ON Signal ON

Position Data Re-setup Request Flag ON

Position Data Re-setup Request Flag OFF

$FSCAN-H (ON for just one scan after high-speed scan starts)

SB000001

IB0000E

MB300005

ABS System Infinite Length Mode Axis: Axis No. 1
First address in the toggle buffer: MW30000

H11

MB300005

SB000004

$ONCOIL

MB300002

SB000004

$ONCOIL

MB300002

MB300000

IEND

IEND

SVRDY (Operation preparation completed)

Position Data Re-setup Request Flag

IBC0007

IFON

ABS System Infinite Length Position Control Data Initialization Completed Flag

Toggle Buffer Selection Flag

IBC0173

IFON

MB300002

IFON

MB300001

IFON

Servo Power Supply Turned Back ON Signal ON?