HEIDENHAIN TNC 320 (340 551-02) - Manual (Page 455)

HEIDENHAIN TNC 320 455
13.7 A
u
to
matic W
o
rk
piece Measur
ement
DATUM PLANE (touch probe cycle 0)
1 The touch probe moves at rapid traverse to the starting position 1
programmed in the cycle.
2 Then the touch probe approaches the workpiece at the assigned
feed rate. The probing direction is to be defined in the cycle.
3 After the TNC has saved the position, the probe retracts to the
starting point and saves the measured coordinate in a
Q parameter. The TNC also stores the coordinates of the touch
probe position at the time of the triggering signal in the parameters
Q115 to Q119. For the values in these parameters the TNC does
not account for the stylus length and radius.
1
Before programming, note the following:
Pre-position the touch probe in order to avoid a collision
when the programmed pre-positioning point is
approached.