
20. AXES CONTROL
B–63122EN/01
NC FUNCTION
136
In the cutter compensation mode, normal–line direction control is
performed in reference to the path after it is compensated.
The speed of C–axis rotation inserted at the beginning of each block is
specified using a parameter except when dry run or rapid traverse (G00)
is effective, in which case C–axis rotation is set to the dry run speed or
rapid traverse speed, respectively.
If an arc command is issued, the C–axis is first made vertical to the
direction of travel at the arc start point before the arc command block is
started. Once the arc command block is started, the C–axis is kept vertical
to the direction of travel while the arc command is being executed.
NOTE
C–axis rotation around the normal–line direction control
center always takes the shortest way to the target point; the
rotation angle is always kept at or below 180 degrees.