HEIDENHAIN TNC 640 User Manual page 644

17
Please note while programming:
Danger of collision!
Cycles for coordinate transformation must not be active during
execution of the touch probe cycles.
Do not activate the following cycles before using touch probe
cycles: Cycle 7 DATUM SHIFT,Cycle 8 MIRROR IMAGE, Cycle
10 ROTATION,Cycle 11 SCALING and 26 AXIS-SPECIFIC
SCALING
Reset any coordinate transformations beforehand
HEIDENHAIN only gives warranty for the function of the
probing cycles if HEIDENHAIN touch probes are used.
A measuring log is created automatically during
calibration. The log file is named TCHPRAUTO.html. This
file is stored in the same location as the original file.
The measuring log can be displayed in the browser on
the control. If a program uses more than one cycle to
calibrate the touch probe, TCHPRAUTO.html will contain
all the measuring logs.
The effective length of the touch probe is always
referenced to the tool reference point. The tool
reference point is often on the spindle nose (and face of
the spindle). The machine manufacturer may also place
the tool reference point at a different point.
Before a cycle definition you must program a tool call to
define the touch-probe axis.
Pre-position the touch probe so that it is located
approximately above the center of the calibration
sphere.
If you program Q455=0, the TNC will not perform a 3-D
calibration.
If you program Q455=1-30, there will be a 3-D
calibration of the touch probe. Deviations of the
deflection behavior will thus be determined under
various angles. If you use Cycle 444, you should first
perform a 3-D calibration.
If you program Q455=1-30, a table will be stored under
TNC:\Table\CAL_TS<T-NR.>_<T-Idx.>.3DTC. <T-NR> is
the number of the touch probe, and <Idx> is its index.
If there is already a reference to a calibration table (entry
in DR2TABLE), this table will be overwritten.
If there is no reference to a calibration table (entry in
DR2TABLE), then, in dependence of the tool number, a
reference and the associated table will be created.
644
Touch Probe Cycles: Special Functions | CALIBRATE TS (Cycle 460, DIN/ISO: G460)
NOTICE
HEIDENHAIN | User's manual for cycle programming | 10/2017