HEIDENHAIN TNC 320 (340 55x-04) 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 at rapid traverse (value from
FMAX column) following the positioning logic (see “Executing
touch probe cycles” on page 283) to the starting point
1 . 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.