HEIDENHAIN TNC 620 (340 56x-02) Cycle programming - Manual (Page 398)

398 Touch Probe Cycles: Automatic Workpiece Inspection
16.1
1
MEA
S
URE COORDINA
TE (Cy
c
le
427
, DIN/ISO: G427)
16.11 MEASURE COORDINATE
(Cycle 427, DIN/ISO: G427)
Cycle run
Touch probe cycle 427 finds a coordinate in a selectable axis and saves
the value in a system parameter. If you define the corresponding
tolerance values in the cycle, the TNC makes a nominal-to-actual value
comparison and saves the deviation value in system parameters.
1 The TNC positions the touch probe to the starting point 1 at rapid
traverse (value from FMAX column) following the positioning logic
(see “Executing touch probe cycles” on page 283). The TNC
offsets the touch probe by the safety clearance in the direction
opposite the defined traverse direction.
2 Then the TNC positions the touch probe to the entered touch point
1 in the working plane and measures the actual value in the
selected axis.
3 Finally the TNC returns the touch probe to the clearance height and
saves the measured coordinate in the following Q parameter:
Please note while programming:
X
Z
1
Parameter number Meaning
Q160 Measured coordinate
Before a cycle definition you must have programmed a
tool call to define the touch probe axis.