HEIDENHAIN TNC 640 User Manual page 148

Hide thumbs Also See for TNC 640:

Table of Contents

The result of transformations built up on each other

depends on the programming sequence.

In every coordinate system, program only the specified

(recommended) transformations. This applies to both

setting and resetting the transformations. Any other use

may lead to unexpected or undesired results. Please

observe the following programming notes.

Programming notes:

Transformations (mirroring and shifting) that are

programmed before the PLANE functions (except

for PLANE AXIAL) will change the position of the tilt

datum (origin of the working plane coordinate system

WPL-CS) and the orientation of the rotary axes

If you just program a shift, then only the position

of the tilt datum will change

If you just program mirroring, then only the

orientation of the rotary axes will change

When used in conjunction with PLANE AXIAL

and Cycle 19, the programmed transformations

(mirroring, rotation and scaling) do not affect the

position of the tilt datum or the orientation of the

Without active transformations in the workpiece

coordinate system, the position and orientation of

the working plane coordinate system and workpiece

coordinate system are identical.

There are no transformations in the workpiece

coordinate system on 3-axis machine tools or with pure

3-axis machining. The BASE TRANSFORM. values of the

active line of the preset table have a direct effect on the

working plane coordinate system with this assumption.

Other transformations are of course possible in the

working plane coordinate system.

"Working plane coordinate system WPL-CS", page 149

Fundamentals, File Management | Fundamentals

Further information:

HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017