Siemens SINUMERIK 840D sl Programming Manual

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Requirements● The precision of the calibration ball should be better than 0.001 mm.● An electronic program is loaded into the spindle with the longest possible stylus tip (>100mm).● The probe shaft should have a good surface quality (e.g. ground steel shaft).Starting position before the measurementBefore the cycle is called, the probe must be positioned at the distance of the measuring path(DFA) above the mounted calibration ball (North Pole) so that this can be approached withoutany collisions at the circumference (equator).Position after the end of the measuring cycleThe probe is located after the measuring cycle at the start position. In the probe direction (forG17 Z), the probe is at the distance of the measuring path (DFA) above the north pole.ProcedureThe part program to be processed has been created and you are in the editor.1. Press the "Meas. workpiece" softkey.2. Press the "3D" softkey.3. Press the "Spindle angular displacement" softkey.The input window "Measure: Spindle angular deviation" opens.ParameterG code programParameter Description UnitPL Measuring plane (G17 - G19) -Calibration data set (1 - 40) -Det. sphere diam. Determining the sphere diameter● No● Yes-∅ Sphere diameter mmα0 Contact angle DegreesDZ Depth infeed for 2nd measurement mmDFA Measurement path mmTSA Safe area for the measurement result mmMeasuring variants3.3 Measure workpiece (milling)Measuring cycles212 Programming Manual, 12/2017, 6FC5398-4BP40-6BA1