Siemens SINUMERIK 840D sl Programming Manual page 221
Measuring cycles
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Note
If the machine does not proceed as expected when the calibration ball is being scanned, the
basic orientation and travel direction of the rotary axes should be checked. (Has DIN conformity
been maintained when defining the axes?)
Starting position
The probe must be prepositioned in the direction of the tool orientation (ORI) above the highest
point of the calibration ball (probe aligned with ball center point). After approaching the starting
position, the distance (A) from the calibration sphere should be approximately DFA.
Figure 3-18
Note
Measuring the kinematics is also possible with active 5-axis transformation (TRAORI).
As a requirement for measuring the kinematics with active TRAORI, the vectors of the 5-axis
transformation must be roughly set. The positions for measuring the kinematics are
approached in the user program with active transformation. The transformation can be
switched on or off during the actual measuring.
SD55740 $SCS_MEA_FUNCTION_MASK
Bit 8 = 0 Measure kinematics without active TRAORI or TCARR
Bit 8 = 1 Measure kinematics with active TRAORI or TCARR
Measuring an individual ball position
Once the probe has been positioned in accordance with user specifications above the ball,
either manually or by the part program (starting point of CYCLE996), the calibration ball is
scanned by calling CYCLE996 and the current ball position is measured.
To this end, the user should parameterize and call CYCLE996 separately for each ball position.
Measuring cycles
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
Starting position for the tool length in relation to the probe ball circumference
Measuring variants
3.3 Measure workpiece (milling)
221
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