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

B-63324EN/03 PROGRAMMING 14.COMPENSATION FUNCTION
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- Criterion 2 for detecting interference (arc angle check)
In a check for interference between three adjacent blocks, that is, a
check between the compensation vector group calculated between
blocks 1 and 2 and the compensation vector group calculated between
blocks 2 and 3, an arc angle between the start and end points of the
programmed path is checked with an arc angle between the start and
end points of the post-compensation path, in addition to the direction
check (criterion 1), if block 2 specifies an arc. If the difference is not
smaller than 180degree , it indicates that interference will occur. This
method is referred to as the arc angle check method.
Example for criterion 2 for detecting interference (when block 2
specifies an arc, and the start and end points of a post-compensation arc
coincide with those of the original arc)
Tool center path
Block 1
Block
2
Block
3

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