HEIDENHAIN TNC 640, User Manual, Page: 751 / 948

Manual Operation and Setup | Using a 3-D touch probe
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
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Operating notes:
Touch-probe functions are not possible in
combination with the
Global Program Settings
function. If at least one settings possibility is active,
the control displays an error message if a manual
touch-probe function is selected or when executing
an automatic touch-probe cycle.
in Turning mode you can use all manual touch
probe cycles, except the
Probe corner
and
Probe
plane
cycles. In turning mode the measured values
correspond to the X axis diameter values.
To use the touch probe in Turning mode, you must
calibrate the touch probe separately in Turning mode.
As the factory default setting of the rotary spindle
may vary between Milling Mode and Turning mode,
you must calibrate the touch probe without any
center offset. You can create additional tool data for
the touch probe, e.g. as an indexed tool.
If the function for orienting the touch probe to the
programmed probe direction is active, the number of
spindle revolutions is limited when the guard door is
open. In some cases, the direction of spindle rotation
will change and positioning will not always follow the
shortest path.
For more information about the touch probe table, refer
to the User’s Manual for Cycle Programming
Traverse movements with a handwheel with display
With a handwheel with display, it is possible to transfer control to
the handwheel during a manual touch probe cycle.
Proceed as follows:
Start the manual touch probe cycle
Position the touch probe at a position near the first touch point
Probe the first touch point
Activate the handwheel on the handwheel
The control shows the pop-up window
Handwheel active
.
Position the touch probe at a position near the second touch
point
Deactivate the handwheel on the handwheel
The control closes the pop-up window.
Probe the second touch point
If necessary, set the preset
End the probing function
If the handwheel is active you cannot start the probing
cycles.