HEIDENHAIN TNC 620 (81760x-02) User Manual

Page 494

Manual operation and setup

14.6 Datum setting without a 3-D touch probe

494

TNC 620 | User's Manual

HEIDENHAIN Conversational Programming | 2/2015

Using touch probe functions with mechanical
probes or measuring dials

If you do not have an electronic 3-D touch probe on your machine,

you can also use all the previously described manual touch probe

functions (exception: calibration function) with mechanical probes

or by simply touching the workpiece with the tool, see page 495.
In place of the electronic signal generated automatically by a

3-D touch probe during probing, you can manually initiate the

trigger signal for capturing the

probing position

by pressing a key.

Proceed as follows:

Select any touch probe function by soft key
Move the mechanical probe to the first position to

be captured by the TNC
Confirm the position: Press the actual-position-

capture soft key for the TNC to save the current

position
Move the mechanical probe to the next position to

be captured by the TNC
Confirm the position: Press the actual-position-

capture soft key for the TNC to save the current

position
If required, move to additional positions and

capture as described previously
Datum: In the menu window, enter the

coordinates of the new datum, confirm with the

SET DATUM soft key, or write the values to a table

cycles in the preset table", page 501)
Terminate the probing function: Press the

END key