HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles - Manual (Page 82)

70 3 Touch Probe Cycles for Automatic Workpiece Inspection
3.3 A
u
to
matic W
o
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piece Measur
ement
Measurement results in Q parameters
The TNC saves the measurement results of the respective touch
probe cycle in the globally effective Q parameters Q150 to Q160.
Deviations from the nominal value are saved in the parameters Q161
to Q166. Note the table of result parameters that are listed with every
cycle description.
During cycle definition the TNC also shows the result parameters for
the respective cycle in a help graphic (see figure at upper right).
Classification of results
For some cycles you can inquire the status of measuring results
through the globally effective Q parameters Q180 to Q182:
The TNC sets the rework or scrap marker as soon as one of the
measuring values falls outside of tolerance. To determine which of the
measuring results lies outside of tolerance, check the measuring log,
or compare the respective measuring results (Q150 to Q160) with
their limit values.
Tolerance monitoring
For most of the cycles for workpiece inspection you can have the TNC
conduct tolerance monitoring. This requires that you define the
necessary limit values during cycle definition. If you do not wish to
monitor for tolerances, simply leave the 0 (the default value) in the
monitoring parameters.
Class of results Parameter value
Measurement results are within tolerance Q180 = 1
Rework is required Q181 = 1
Scrap Q182 = 1
The TNC also sets the status marker if you have defined
no tolerance values or largest/smallest dimensions.