Siemens SINUMERIK 840D sl Programming Manual page 19
Measuring cycles
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The specified work offsets are effective together as a chain and result in the workpiece
coordinate system.
For "Correction in a work offset", in conjunction with measuring cycles, a distinction is made
between two different cases.
Correction to the coarse offset:
An absolute offset value is determined between the machine zero and the measured
workpieces zero. This offset is written into the coarse component of the selected work offset
and deleted in the fine component.
Correction to the fine offset:
The measured difference is written as offset to the fine component of the selected work offset
and is added to the course component.
The input window work offset coarse/fine in the automatic measuring cycle screens is activated
using SD54760 $SNS_MEA_FUNCTION_MASK_PIECE, bit 10 = 1.
Note
Scale factors with a scaling value unequal to "1" are not supported by the measuring cycles!
Mirroring functions are only permitted in conjunction with counterspindles on turning machines.
The machine and workpiece coordinate system can be set and programmed separately in the
"inch" or "metric" measuring system.
Note
Transformation
● Measure workpiece
Workpiece measurements are always performed in the workpiece coordinate system. All
descriptions relating to workpiece measurement refer to it!
● Measure tool
When measuring tools with kinematic transformation active, a distinction is made between
basic coordinate system and machine coordinate system.
If kinematic transformation is deactivated, this distinction is made.
All subsequent descriptions relating to tool measurement assume that kinematic
transformation is disabled and therefore refer to the machine coordinate system.
Measuring cycles
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
2.4 Reference points on the machine and workpiece
Description
19
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