HEIDENHAIN TNC 640 User Manual page 326

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Table of Contents

Cycles: Special Functions | INTERPOLATION TURNING, CONTOUR FINISHING (Cycle 292, DIN/ISO: G292,

Danger of collision!

Collision may occur between the tool and workpiece. The

described contour is not automatically extended by a set-up

clearance! At the beginning of the machining operation, the TNC

positions the tool at rapid traverse FMAX to the contour starting

Program an extension of the contour in the subprogram

Make sure that there is no material at the contour starting

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.

HEIDENHAIN | User's manual for cycle programming | 10/2017

software option 96)