Siemens SINUMERIK 840D sl Programming Manual page 47

and the previous mean value is deleted. This enables a fast response to major dimensional
deviations.
Note
If the measurement difference exceeds one of the tolerance limits of the workpiece, then this
is displayed depending on the tolerance position "oversize" or "undersize". In CYCLE995, TUL
stands for the upper tolerance limit of the angular deviation.
2/3 tolerance of workpiece TMV (S_TMV)
TMV is active only for workpiece measurement with automatic tool offset.
Within the range of "Lower limit" and "2/3 workpiece tolerance" the mean value is calculated
according to the formula described in Section "Measuring strategy".
Note
Mv
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● If Mv
mean value memory is cleared.
● If Mv
abrupt compensations.
Weighting factor for mean value generation FW (S_K)
FW is active only for workpiece measurement with automatic tool offset. The weighting factor
can be used to give a different weighting for each measurement.
A new measurement result thus has only a limited effect on the new tool offset as a function
of FW.
Work offset range TZL (S_TZL)
TZL active for
● Workpiece measurement with automatic tool offset
● Tool measurement and calibration for milling tools and workpiece probes
This tolerance range corresponds to the amount of maximum accidental dimensional
deviations. It has to be determined for each machine.
No tool compensation is made within these limits.
In workpiece measurement with automatic tool offset, however, the mean value of this
measuring point is updated and re-stored with the measured actual/set difference, possibly
compensated by an empirical value.
Measuring cycles
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
2.10 Parameters for checking the measurement result and offset
is compared with the work offset range:
is greater than this range, compensation is corrected by Mv
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is less than this range, no compensation is carried out. This prevents excessively
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Description
and the associated
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