HEIDENHAIN TNC 640, User Manual, Page: 748 / 948

Manual Operation and Setup | Presetting without a 3-D touch probe
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
Operating notes:
The control automatically saves the preset set with
the axis keys in row 0 of the preset table.
If the machine tool builder has locked an axis, then
you cannot set a preset in that axis. The soft key for
that axis is then not visible.
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.
Further information: "Using a 3-D touch probe ", page 749
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 control.
To capture the position: Press the
Actual-position-capture
soft key
The control saves the current position.
Move the mechanical probe to the next position
to be captured by the control.
To capture the position: Press the
Actual-position-capture
soft key
The control saves the current position.
If required, move to additional positions and
capture as described previously
Preset
: In the menu window, enter the
coordinates of the new preset, confirm with the
SET PRESET
soft key, or write the values to a
table
Further information: "Writing measured values
from the touch probe cycles to a datum table",
page 756
Further information: "Writing measured values
from the touch-probe cycles to the preset table",
page 757
Terminate the probing function: Press the
END
key
If you try to set a preset in a locked axis, the control will
issue either a warning or an error message, depending
on what the machine tool builder has defined.