Milling Tool: Suppression Of Start Angle Positioning _Sta1 - Siemens SINUMERIK 840D sl Programming Manual

Measuring Cycles for Turning Machines
6.3 CYCLE982 tool: Measure turning and milling tools
6.3.7

Milling tool: Suppression of start angle positioning _STA1

Function
To apply the angular position of the milling spindle (cutting edge of the miller contacting the
probe) unchanged in the cycle and thus suppress the starting angle positioning with the
value in _STA1, you can set _CHBIT[20]=1 .
However, this only permits simple milling cutter measuring variants that do not have to use
the starting angle in _STA1, e.g.: no 2nd measurement or no re-positioning after
measurement with reversal. Otherwise milling cutter measuring variants are possible that are
also permitted for incremental measurement.
If the machine does not feature an SPOS-capable milling spindle, it is also possible to
measure milling cutters with these measuring variants and _CHBIT[20]=1.
Permissible measuring variants with milling cutter and _CHBIT[20]=1:
xxx0x1 (with x : 0 or 1, no other values)
Other measuring variants with a miller will be rejected with an alarm message.
For measurement with rotating spindle and _CHBIT[20]=1, only these measuring variants are
permitted. Measurement with reversal is not permitted.
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Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
Measuring cycles