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Siemens SINUMERIK 840D sl Programming Manual Page 280

Measuring cycles hmi sl.
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Measuring Cycles for Turning Machines
6.3 CYCLE982 tool: Measure turning and milling tools
Special aspects with milling tools
The tool length correction is specific to the turning machine
(SD 42950:TOOL_LENGTH_TYPE=2). The length assignment (L1, L2) is performed like for
a turning tool.
Measurement is possible with a rotating (M3, M4) or with a stationary milling spindle (M5). If
the milling spindle is stationary, it is positioned at the specified starting angle _STA1 at the
beginning. For simple measuring tasks, this positioning with _STA1 can be suppressed
_CHBIT[20]=1). If suppression is active, measurement not requiring an SPOS-capable
milling spindle is possible.
To measure a second cutting edge, you can select "measurement with reversal". This
involves calculating the mean value over both measured values.
Not all functions are available. Certain
functions require a certain SW software
version of the measuring cycles and NCK.
This information is given with each function.
Note
Measuring drills
If the length of the drill (L2 for G18, radial position and/or L1 for G18, axial position) is
measuring by approaching the probe from the side, ensure that for the drill to be measured,
the probe is not deflected in the area of the twist groove or in the area of its drill tip. If this is
not possible using the "Measurement" or "Automatic measurement" measuring processing,
the "Incremental measurement" measuring variant should be used.
The drill radius must have been previously entered in the tool correction for this
measurement variant, otherwise an alarm is triggered.
Note
Turning machines with Y axis
Before CYCLE982 is called, the Y axis (applicate in G18) must be put in a position
corresponding to the center of the probing surface of the tool probe in this axis.
The Y axis is not positioned in the cycle itself.
280
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
Measuring cycles

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