Calibrate Probe - Length (Cycle976); Function - Siemens SINUMERIK 840D sl Programming Manual

Measuring variants
3.3 Measure workpiece (milling)
3.3.2

Calibrate probe - length (CYCLE976)

3.3.2.1

Function

Note
Note about all calibration methods
For precise measurements in conjunction with the functions swivel/Cycle800 or Traori, ensure
that the probe is calibrated in the same way as measurement will subsequently be performed.
In other words, the probe should be calibrated in the mechanical constellation of rotary and
linear axes that corresponds to the measurement!
Function
Using this measuring variant, the length of a workpiece probe can be calibrated in the tool axis
on a known surface (reference area). This can be done, for example, on a workpiece.
Measuring principle
The probe travels in the measuring direction on the edge (e.g. workpiece)
Figure 3-7
The length of the probe is determined corresponding to the setting in general MD 51740
$MNS_MEA_FUNCTION_MASK, bit 1. The setting determines whether the tool length refers
to the probe sphere center or the probe sphere circumference.
In the "Tool length to sphere center" variant, a trigger value is entered in the calibration data
according to the calibration direction.
References: Commissioning Manual
Chapter "Measuring cycles and measurement functions".
108
Calibrate: Length at edge (CYCLE976)
SINUMERIK Operate (IM9) / SINUMERIK 840D sl ,
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
Measuring cycles