Fanuc Series 15i/150i-MA (Programming) Operators Manual

B-63324EN/03 PROGRAMMING 19.AXIS CONTROL FUNCTIONS
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When movement according to the new data starts, the chopping delay
compensation function stops the chopping delay compensation for the
old data, and starts the chopping delay compensation for the new data.
The following describes the operations performed after the data has
been changed.
(1) When the upper dead point is changed during movement from the
upper dead point to the lower dead point
New upper dead point
Previous upper dead point
Previous lower dead point
Changing the upper dead point
The tool first moves to the lower dead point, then to the new upper
dead point.
Once movement to the lower dead point has been completed, the
previous chopping delay compensation is set to 0, and chopping
delay compensation is performed based on the new data.
(2) When the lower dead point is changed during movement from the
upper dead point to the lower dead point
Previous upper dead point
New lower dead point
Previous lower dead point
Changing the lower dead point
The tool first moves to the previous lower dead point, then to the
upper dead point, and finally to the new lower dead point.
Once movement to the upper dead point has been completed, the
previous chopping delay compensation is set to 0, and chopping
delay compensation is performed based on the new data.

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