5238-E P-248SECTION 9 CONTOUR GENERATIONThe circular interpolation direction, tool nose radius compensation direction, and other factorsare determined based on the selected plane.2-2. Programming Format2-3. Cautions• An alarm occurs if the X coordinate value of the start and end points are different. This isbecause the coordinate plane will be changed if the X coordinate values are different.• For circular interpolation between two points A and B on the side face, there are two possiblepaths which have the same radius. In this case, the arc whose center angle is less than 180° isselected.In Fig. 5 below, the arc "a" is generated.LE33013R0301100070001Circular interpolation (CW) on sideface: G132 Z C L FZ, C : Coordinates of end point for circularinterpolation (CW) on contour generation sidefaceL : Radius of arc on side faceF : Cutting feedrate (mm/min)Circular interpolation (CCW) on sideface: G133 Z C L FZ, C : Coordinates of end point for circularinterpolation (CCW) on contour generationside faceL : Radius of arc on side faceF : Cutting feedrate (mm/min)(C360) C0(C0) C360Ba LALbFig. 5The values in parentheses are for the inner plane.
