
3.INTERPOLATION FUNCTION NC FUNCTIONS B-63782EN/01
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3.4 CIRCULAR INTERPOLATION (G02,G03)
Circular interpolation of optional angle from 0 deg to 360 deg can be
specified.
G02: Clockwise (CW) circular interpolation
G03: Counterclockwise (CCW) circular interpolation
G02
G03
Xp
G17
G18
G19
G02
G03
Zp
G02
G03
Yp
YpZp
Xp
Fig.3.4 (a) Direction of the circular interpolation
Feed rate of the tangential direction takes the speed specified by the F
code.
Planes to perform circular interpolation is specified by G17, G18, G19.
Circular interpolation can be performed not only on the X, Y, and Z
axis but also on the parallel axes of the X, Y, and Z axes.
G17: Xp-Yp plane
G18: Zp-Xp plane
G19: Yp-Zp plane
where
Xp: X axis or its parallel axis
Yp: Y axis or its parallel axis
Zp: Z axis or its parallel axis
Parameter is set to decide which parallel axis of the X, Y, Z axes to be
the additional axis.