Siemens SINUMERIK 840D sl Programming Manual page 278

Measuring variants
3.5 Measure tool (turning)
● When measuring turning tools, the cutting edge position of the tool must be entered in the
tool offset in accordance with the basic position of the tool carrier.
● When measuring drilling and milling tools, the setting data must be
SD 42950: TOOL_LENGTH_TYPE = 2
i.e., lengths are assigned to the axes in the same way as for turning tools.
● The active level must be G18.
Function
To take into account the tool carrier that can be orientated in measuring cycle CYCLE982, the
following machine data must be set:
MD 51740 $MNS_MEA_FUNCTION_MASK, bit 16 = 1
The tool components are corrected corresponding to the orientation of the tool carrier in the
initial state.
When measuring turning tools, especially roughers, finishers and mushroom-shaped tools, the
swivel axis can assume any position around Y. Multiples of 90° are permitted for milling and
drilling tools. Multiples of 180° are possible when positioning the tool spindle.
This is monitored within the cycle.
If turning tools are measured around Y using any positions (not multiples of 90°) of the swivel
axis, then it should be taken into consideration that the turning tool is measured with the same
tool position in both axes X/Z, assuming that this is possible.
Sequence
Before CYCLE 982 is called, the tool must be aligned in the same way as it will eventually be
measured.
The tool should be preferably aligned with CYCLE800, refer to the Operating Manual
Chapter "Swivel plane/align tool (CYCLE800)".
Please note that the measuring cycle assumes that the tool has been aligned in advance.
From the position adopted by the tool, it must be possible to approach the probe in X, Z via
the measuring cycle.
The measuring procedure that follows is the same as for the measuring variants when the tool
carrier is in its basic position.
Note
Measuring milling tools
The following measuring version is not supported when using a tool carrier that can be
orientated:
Measuring type: "complete" and cutting edge: measure "rear side".
When this measuring version is used, alarm 61037: "Incorrect measuring version" is output.
278
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
Turning ,
Measuring cycles