Siemens SINUMERIK 840D sl Programming Manual page 113

During the calibration process, the center point of the calibration ring (corresponding to the
calibration method) and its distance to the starting position are determined.
The calibration data / trigger values are significantly influenced in the result by the following
variables:
● Physical probe ball radius
● Design of the probe
● Measuring velocity
● Calibration ring with corresponding accuracy
● Correct mounting of the calibrating ring
Figure 3-8
Preconditions
The following requirements must be fulfilled for calibration in the ring:
● The probe must be active as tool.
● Probe type:
– 3D multi probe (type 710)
– Mono probe (type 712)
– Star-type probe (type 714)
–
● Note: The arms of a star-type probe (type 714) must be positioned at 90 degree angle to
each other.
● The exact diameter of the calibration ring is known.
Measuring cycles
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
Calibrate: Radius in ring (CYCLE976)
Note
In connection with mono probes, star-type probes and the calibration method "Start point
in ring center "NO"", an SPOS-capable spindle is required.
Measuring variants
3.3 Measure workpiece (milling)
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