Motion commands
4.8 Circular interpolation with arc angle and center point (G2/G3, AR=)
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
141
4.8 Circular interpolation with arc angle and center point (G2/G3, AR=)
The circular movement is described by:
• The opening angle AR = and
• the end point in Cartesian coordinates X, Y, Z or
• the circle center at addresses I, J, K
Programming
G2/G3 X… Y… Z… AR=
or
G2/G3 I… J… K… AR=
Parameter
G2
Circular interpolation, CW
G3
Circular interpolation, CCW
X Y Z
End point in Cartesian coordinates
I J K
Circle center in Cartesian coordinates (in X, Y, Z direction)
Key:
I: Coordinate of the circle center in the X direction
J: Coordinate of the circle center in the Y direction
K: Coordinate of the circle center in the Z direction
AR=
Opening angle, range of values 0° to 360°
=AC(…)
Absolute dimensioning (non-modal)
Note
Full circles (traversing angle 360°) cannot be programmed with AR=, but must be
programmed using the circle end position and interpolation parameters. The center point
coordinates I, J, K are normally entered in incremental dimensions with reference to the
circle starting point.
You program the absolute center point non-modally with reference to the workpiece zero
with: I=AC(…), J=AC(…), K=AC(…). An interpolation parameter I, J, K with value 0 can be
omitted but the second associated parameter must always be specified.
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