Executing Touch Probe Cycles - HEIDENHAIN TNC 620 User Manual

Using Touch Probe Cycles | Before You Start Working with Touch Probe Cycles

Executing touch probe cycles

All touch probe cycles are DEF active. This means that the TNC
runs the cycle automatically as soon as the TNC executes the cycle
definition in the program run.
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
You can also run the Touch Probe Cycles 408 to 419
during an active basic rotation. Make sure, however,
that the basic rotation angle does not change when you
use Cycle 7 DATUM SHIFT with datum tables after the
measuring cycle.
Touch probe cycles with a number greater than 400 position the
touch probe according to a positioning logic:
If the current coordinate of the stylus south pole is less than the
coordinate of the clearance height (as defined in the cycle), then
the TNC first retracts the touch probe in the touch probe axis to
the clearance height and then positions it in the working plane
near the first touch point.
If the current coordinate of the stylus south pole is greater
than the coordinate of the clearance height, then the TNC first
positions the touch probe to the first probe point in the working
plane, and then in the touch-probe axis directly to the measuring
height
HEIDENHAIN | TNC 620 | User's manual for cycle programming | 10/2017
NOTICE
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