HEIDENHAIN TNC 320 (340 551-01) - Manual (Page 422)

422 13 Touch Probe Cycles in the Manual and Electronic Handwheel Modes
13.4 Set
ting the D
a
tu
m with a 3-D T
o
uc
h Pr
obe
13.4 Setting the Datum with a 3-D
Touch Probe
Introduction
The following functions are available for setting the datum on an
aligned workpiece:
„ Datum setting in any axis with PROBING POS
„ Defining a corner as datum with PROBING P
„ Setting the datum at a circle center with PROBING CC
To set the datum in any axis (see figure at right)
8 Select the probe function by pressing the
PROBING POS soft key.
8 Move the touch probe to a starting position near the
touch point.
8 Select the probe axis and direction in which you wish
to set the datum, such as Z in direction Z–. Selection
is made via soft keys.
8 To probe the workpiece, press the machine START
button.
8 Datum: Enter the nominal coordinate (e.g. 0) and
confirm your entry with the SET DATUM soft key.
8 To terminate the probe function, press the END key.
Note that during an active datum shift the TNC always
bases the probed value on the active preset (or on the
datum most recently set in the Manual operating mode),
although the datum shift is included in the position display.
Y
X
Z