Programming instructions

5-28

Tool Corrections NC Programming 17VRS

DOK-MTC200-NC**PRO*V17-ANW1-EN-P

CAUTION

With lookahead calculation of the corrected tool center

point path, only the transition angle relative to the contour

element of the following motion NC-block is used in the

calculation and not the length of the contour element.

The cases indicated in Fig. 5-16 are not recognized.

S '

S ‘

Fig. 5-16: Limitations with contour transition elements

The contour elements which are represented as straight lines can, of

course, be replaced by arcs. Any overlaps with elements other than the

next contour element are ignored.

With concave arcs (Fig. 5-17), the case shown here is recognized and

program execution is terminated and an error message is generated.

S '

Fig. 5-17: Concave arc 1 element

The case shown below results in contour violations with concave arcs.