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Defining the tcpm function, Mode of action of the programmed feed rate, 5 tcpm function (sof tw ar e option 2) – HEIDENHAIN TNC 640 (34059x-01) ISO programming User Manual

Page 351

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HEIDENHAIN TNC 640

351

1

1

.5 TCPM FUNCTION (Sof

tw

ar

e Option 2)

Defining the TCPM FUNCTION

U

Press the special functions key

U

Press the Programming Aids soft key

U

Select TCPM FUNCTION

Mode of action of the programmed feed rate

The TNC provides two functions for defining the mode of action of the
programmed feed rate:

U

F TCP

determines that the programmed feed rate is

interpreted as the actual relative velocity between the
tool point (Tool Center Point) and the workpiece.

U

F CONT

determines that the programmed feed rate is

interpreted as the contouring feed rate of the axis
programmed in the respective NC block.

Example NC blocks:

...

13 FUNCTION TCPM F TCP ...

Feed rate refers to the tool tip

14 FUNCTION TCPM F CONT ...

Feed rate is interpreted as the speed of the tool
along the contour

...