Incremental Calibration; General Information - Siemens SINUMERIK 840D sl Programming Manual

Measuring Cycles for Turning Machines
6.3 CYCLE982 tool: Measure turning and milling tools
6.3.5

Incremental calibration

6.3.5.1

General information

Function
A tool probe can be calibrated with measuring variant
_MVAR=100000 (machine related) or
_MVAR=100010 (workpiece-related)
incrementally with a calibration tool.
The switching positions of the probe are not known. The values entered in the array of the
probe are not evaluated. The calibration tool must have been positioned in front of the probe
manually (in JOG mode) before the cycle is called.
The cycle uses the calibration tool to ascertain the current distance dimensions between the
zero and the probe trigger point and automatically loads them into the appropriate data area
in data block GUD6 (field _TP [ ] or _TPW[ ]).
Values are corrected without empirical and mean values.
Prerequisite
The lateral surfaces of the tool probe must be aligned parallel to the relevant axes (machine
or workpiece coordinate system in abscissa and ordinate).
Length 1 and 2 and the radius of the calibration tool must be known exactly and stored in a
tool offset data block.
This tool offset must be active when the cycle is called. A turning tool must be specified as
the tool type (type 5xy). The cutting edge position SL must be 3.
The calibration tool (tool tip) must, before CYCLE982 is started, have a position that causes
the probe to switch in the specified direction _MD for the measuring axis _MA within path 2 ·
_FA.
Careful when positioning manually!
Damage to the probe must be prevented.
Parameter
Parameter
_MVAR
_MA
_MD
Additional parameters _VMS, _FA, _PRNUM and _NMSP also apply.
See also
Defining parameters (Page 2-2)
Result parameters (Page 2-4)
Variable measuring velocity: _VMS (Page 2-14)
Measurement path: _FA (Page 2-16)
Probe type, probe number: _PRNUM (Page 2-17)
Multiple measurement at the same location: _NMSP (Page 2-19)
6-44
Data type Meaning
100000 Calibrate tool probes incrementally (machine-related)
100010 Calibrate tool probe incrementally (workpiece-related)
1, 2 Measuring axis
0, 1 Measuring direction: 0 - positive, 1 - negative
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Measuring cycles