Programming Example - Siemens SINUMERIK 840D sl Programming Manual
Measuring cycles hmi sl
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- Function manual (2184 pages) ,
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5.6.4.2
Programming example
Measuring a groove and determining the ZO with CYCLE979
The groove width on a workpiece is to be measured in plane G17 and measuring height
Z=40 mm. The groove lies at an angle of 70° in its width from the X axis (_STA1).
The resulting center of the slot in the measured path should lie in the corrected workpiece
coordinate system at X = 150 mm, Y = 130 mm (_CPA, _CPO).
Any deviation from the selected ZO must be compensated for automatically in G55 by
means of additive ZO.
Measurement is also performed with G55.
The maximum conceivable deviation of the
groove center is taken as 1 mm. The
measuring path is therefore specified as
_FA= 2 mm (max. measuring path = 4 mm)
and ensures that there is still a minimum
measuring path of 1 mm up to the edge of
the groove.
A deviation of < 0.8 mm of the center is
permitted. This should be monitored with
_TSA.
Clamping for workpiece:
Zero offset, with settable ZO G55: NVx,
NVy, ... (values before the correction [offset])
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
Measuring Cycles for Milling and Machining Centers
5.6 CYCLE979 workpiece: Measure hole/shaft/groove/rib at an angle
187
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