HEIDENHAIN TNC 410 - Manual (Page 261)

12 3-D Touch Probes 248
12.1 Touch Probe Cycles in the Manual
and Electronic Handwheel modes.
The TNC must be specially prepared by the machine tool
builder for the use of a 3-D touch probe.
If you are carrying out measurements during program
run, be sure that the tool data (length, radius, axis) can be
used from the calibrated data or from the last TOOL
CALL block (selected with MP7411).
After you press the machine START button, the touch probe
approaches the workpiece in a paraxial movement in the selected
probe function. The machine tool builder sets the probe feed rate
(see figure at right). When the probe contacts the workpiece, it
■ the 3-D touch probe system sends a signal to the TNC: the
coordinates of the probed position are saved
■ stops moving, and
■ returns to its starting position in rapid traverse.
If the stylus is not deflected within a defined distance, the TNC
displays an error message (MP 6130).
To select the touch probe functions:
ú Select the Manual Operation or Electronic Handwheel mode of
operation
ú To choose the
touch probe functions, press the TOUCH PROBE soft
key. The TNC displays additional soft keys — see table
at right.
Function Soft key
Calibrate the effective length
Calibrate the effective radius
Basic rotation
Set the datum
Set the datum at a corner
Set the datum at a circle center
12.1 T
o
u
c
h
P
robe Cy
cles in the Manual and Electr
onic Handwheel Modes
Y
X
Z
F
F MAX