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Selecting tilting axes: m138, Miscellaneous functions for rotary axes 12.4 – HEIDENHAIN TNC 620 (81760x-02) User Manual

Page 443

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Miscellaneous functions for rotary axes 12.4

12

TNC 620 | User's Manual

HEIDENHAIN Conversational Programming | 2/2015

443

Selecting tilting axes: M138

Standard behavior

The TNC performs M128, TCPM, and tilts the working plane,

only in those axes for which the machine tool builder has set the

appropriate machine parameters.

Behavior with M138

The TNC performs the above functions only in those tilting axes

that you have defined using M138.

If you restrict the number of tilting axes with the

M138 function, your machine may provide only

limited tilting possibilities.

Effect

M138 becomes effective at the start of block.
You can reset M138 by reprogramming it without entering any

axes.

Example NC blocks

Perform the above-mentioned functions only in the tilting axis C:

L Z+100 R0 FMAX M138 C