Please Note While Programming - HEIDENHAIN TNC 640 User Manual

16
Touch Probe Cycles: Automatic Workpiece Inspection | MEASURE HOLE (Cycle 421, DIN/ISO: G421)

Please note while programming:

Before a cycle definition you must have programmed a
tool call to define the touch probe axis.
The smaller the angle, the less accurately the TNC can
calculate the hole dimensions. Minimum input value: 5°
If you reference parameter Q330 to a turning tool, the
following applies:
– Parameters Q498 and Q531 have to be described
– The information of the parameters Q498, Q531,
for example from Cycle 800, has to match this
information
– If the TNC compensates the turning tool, the
appropriate values in line DZL and DXL, respectively,
are compensated.
– The TNC monitors the breakage tolerance which is
defined in column LBREAK
If you reference parameter Q330 to a milling tool, the
information of the parameters Q498 and Q531 has no
effect.
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HEIDENHAIN | User's manual for cycle programming | 10/2017