HEIDENHAIN TNC 128 (77184x-02) - Manual (Page 470)

Touch probe cycles
20.1 General information about touch probe cycles
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TNC 128 | User's Manual HEIDENHAIN Conversational Programming | 5/2014
20.1 General information about touch probe
cycles
HEIDENHAIN only gives warranty for the function of
the probing cycles if HEIDENHAIN touch probes are
used.
The TNC must be specially prepared by the machine
tool builder for the use of a 3-D touch probe.
Refer to your machine manual.
The touch probe cycles are available only with the
Touch Probe Functions software option (option number
17). If you are using a HEIDENHAIN touch probe, this
option is available automatically.
Method of function
Whenever the TNC runs a touch probe cycle, the 3-D touch probe
approaches the workpiece in one linear axis. This is also true
during an active basic rotation or with a tilted working plane. The
machine tool builder determines the probing feed rate in a machine
parameter (see "Before You Start Working with Touch Probe Cycles"
later in this chapter).
When the probe stylus contacts the workpiece,
the 3-D touch probe transmits a signal to the TNC: the
coordinates of the probed position are stored,
the touch probe stops moving, and
returns to its starting position at rapid traverse.
If the stylus is not deflected within a defined distance, the TNC
displays an error message (distance:
DIST from touch probe table).
Touch probe cycles in the Manual Operation and
Electronic Handwheel operating modes
In the
Manual Operation and El. Handwheel modes, the TNC
provides touch probe cycles that allow you to:
Calibrate the touch probe
Setting datums
The manual touch probe cycles are described in the "Manual
operation and setup" chapter (see "Using 3-D touch probes (Touch
Probe Functions software option 17)", page 293).