Siemens SINUMERIK 840D sl Programming Manual page 447

Number of measurements on failure to switch
_CHBIT[15]=0:
_CHBIT[15]=1:
Retraction velocity from the measuring point
_CHBIT[16]=0:
_CHBIT[16]=1:
Feed during measurement
_CHBIT[17]=0:
_CHBIT[17]=1:
Static measurement result display
_CHBIT[18]=0:
_CHBIT[18]=1:
Special treatment of Y axis with G18in CYCLE974 or CYCLE994
_CHBIT[19]=0:
_CHBIT[19]=1:
Suppression of the starting angle positioning _STA1 in CYCLE982
_CHBIT[20]=0:
_CHBIT[20]=1:
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
A max. of 5 measuring attempts are undertaken before the fault "measuring
sensor does not switch" is generated.
After one unsuccessful measurement attempt, the fault "measuring sensor does
not switch" is generated.
The retraction from the measuring point is realized with the same velocity as for
an intermediate positioning operation.
The retraction velocity is realized with the percentage rapid traverse velocity,
defined in SPEED[0] and is only effective when collision monitoring is active
(_CHBIT[2]=1).
Measurement is performed with the feed programmed in _VMS.
Note peculiarities with _VMS=0!
Initially, the axis traverses with the measuring feed _SPEED[3], after switching,
there is a retraction of 2 mm from the measuring position and the actual
measurement starts with the feed from _VMS.
Measurement with the feed from _SPEED[3] is only realized for a measurement
distance/travel > 2 mm
For explanation, see _CHBIT[10], _CHBIT[11]
For explanation, see _CHBIT[10], _CHBIT[11]
No special treatment for Y axis (applicate)
setpoint setting and parameterization (SETVAL, _TUL, _TLL, SZO) for the Y axis
(applicate) as for the parameterization of the ordinate (X axis).
The tool offset is applied to the length that is active in the ordinate (X axis)
(usually L1), as long as other lengths are not specified by _KNUM.
The ZO compensation is applied in the specified ZO memory in the ordinate
component (X axis).
For certain measuring variants, the milling spindle is positioned with _STA1.
When measuring milling tools, for basic measuring variants, it is possible to
suppress positioning of the milling spindle to the value of the starting angle
_STA1.
This is possible for the following measuring variants to measure milling tools:
_MVAR=xxx001 (with x: 0 or 1, no other values)
Data description
9.2 Cycle data
9-37