HEIDENHAIN TNC 640 (34059x-05) Cycle programming - Manual (Page 289)

CONTOUR TURNING INTERPOLATION (Cycle 292, DIN/ISO: G292,
software option 96)
11.6
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TNC 640 | User's Manual Cycle Programming | 1/2015
289
The described contour is not automatically extended
by a set-up clearance. An extension of the contour
must be programmed in the subprogram. At the
beginning of the machining operation, the TNC
positions the tool at rapid traverse in the tool axis
direction to the contour starting point!
Make sure
that there is no material at the contour starting
point!
The center of the turning contour is the starting point
in the working plane at the time the cycle is called.
This cycle is effective only for machines with servo-
controlled spindle.
Software option 96 must be enabled.
If Q560=1 the TNC does not check whether
the spindle is rotating when the cycle is run.
(Independent of CfgGeoCycle – displaySpindleError)
Your TNC might monitor the tool to ensure that no
positioning movements at feed rate are performed
while spindle rotation is off. Contact the machine tool
builder for further information.