Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual download pdf (Page 107)

HEIDENHAIN TNC 320 107

3.3 Automatic Workpiece Measurement

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). The

highlighted result parameter belongs to that input parameter.

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.

In Cycle 427 the TNC assumes that you are measuring an outside

dimension (stud). However, you can correct the status of the

measurement by entering the correct maximum and minimum

dimension together with the probing direction.

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 markers if you have not

defined any tolerance values or maximum/minimum

dimensions.

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Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual Page 107