HEIDENHAIN TNC 620 (340 56x-02) Cycle programming - Manual (Page 290)

290 Touch Probe Cycles: Automatic Measurement of Workpiece Misalignment
14.2 BA
SIC R
O
T
A
TION (Cy
c
le 40
0, DIN/ISO: G40
0
)
14.2 BASIC ROTATION (Cycle 400,
DIN/ISO: G400)
Cycle run
Touch probe cycle 400 determines a workpiece misalignment by
measuring two points, which must lie on a straight surface. With the
basic rotation function the TNC compensates the measured value.
1 The TNC positions the touch probe to the programmed starting
point
1 at rapid traverse (value from FMAX column) following the
positioning logic (see “Executing touch probe cycles” on
page283). The TNC offsets the touch probe by the safety clearance
in the direction opposite the defined traverse direction.
2 Then the touch probe moves to the entered measuring height and
probes the first touch point at the probing feed rate (column F).
3 Then the touch probe moves to the next starting position 2 and
probes the second position.
4 The TNC returns the touch probe to the clearance height and
performs the basic rotation.
Please note while programming:
X
Y
1
2
Before a cycle definition you must have programmed a
tool call to define the touch probe axis.
The TNC will reset an active basic rotation at the beginning
of the cycle.