Siemens SINUMERIK 840Di sl Programming Manual page 138

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Motion commands

4.6 Circular interpolation with center point and end point (G2/G3, I=, J=, K=AC...)

Indication of working plane

The control needs the working plane parameter (G17 to G19) in order to calculate the

direction of rotation for the circle – G2 is clockwise or G3 is counterclockwise.

It is advisable to specify the working plane generally.

You can also machine circles outside the selected working plane (not with arc angle and

helix parameters). In this case, the axis addresses that you specify as an end point

determine the circle plane.

Programmed feedrate

You can use FGROUP to specify, which axes are to be traversed with a programmed

feedrate. For more information please refer to the Path behavior section.

Programming Manual, 11/2006, 6FC5398-1BP10-2BA0

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