Variable Measuring Velocity: _Vms; Offset Angle Position: _Cora - Siemens SINUMERIK 840D sl Programming Manual

Measuring cycles
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Parameter description
2.3 Description of the most important defining parameters
Example 6: (with TENV)
Tool environment is to be the tool environment stored in "WZUMG3".
However, the following is to be corrected irrespective of T, D, DL stored in it.
For tool T6 with D2 the additive offset of DL=4 that is assigned to the length for tool type T6
and setting (G17, G18, or G19) stored in "WZUMG3" of the measuring axis is to be corrected
additively.
Relevant data:
_TNUM=6 _TENV="WZUMG3" _KNUM=3001002 (or _KNUM=3000002) _DLNUM=4
_CHBIT[6]=0 _CHBIT[8]=0 _MA=1
2.3.9

Variable measuring velocity: _VMS

Parameter
The measuring velocity can be freely selected by means of _VMS. It is specified in mm/min
or inch/min depending on the basic system.
The maximum measuring velocity must be selected to ensure safe deceleration within the
probe deflecting path.
When _VMS = 0, 150 mm/min is the default value for the feedrate (when _FA=1). This
feedrate value automatically increases to 300 mm/min if _FA>1 is selected.
If the basic system is in inches, 5.9055 inch/min or 11.811 inch/min takes effect.
2.3.10

Offset angle position: _CORA

Parameter
The parameter _CORA contains an offset angular position for mono probes, i.e. alignment of
the probe according to its single-dimensional direction of switching ("high point").
Note
In CYCLE982 _CORA is also used to correct the spindle setting after measurement with
reversal during milling.
2-14
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Measuring cycles

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