Siemens SINUMERIK 840D sl Programming Manual page 35

Measuring cycles
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A probe must be calibrated before it can be used. Calibration involves precisely determining
the triggering points (switching points) of the tool probe and entering them in special data
fields.
Calibration is performed with a calibration tool. The precise dimensions of the tool are
known.
Use the same measuring velocity for calibrating and measuring.
A special measuring variant in a cycle is available for calibration.
On turning machines, the calibration tool is treated like a turning tool with cutting edge
position 3. The lengths refer to the ball circumference, not to the ball center.
Entry in tool memory
Tool type (DP1):
Cutting edge position (DP2):
Length 1 - geometry:
Length 2 - geometry:
Radius (DP6):
Length 1 - basic measurement
(DP21):
Length 2 - basic measurement
(DP22):
The wear and other tool parameters must be assigned the value 0.
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
1.7 Probe, calibration body, calibration tool
5xy
3
L1
L2
r
only if required
only if required
General
1-19

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