Please Note While Programming; Cycle Parameters - HEIDENHAIN TNC 620 User Manual

Touch Probe Cycles: Automatic Tool Measurement | Calibrating the TT (Cycle 30 or 480, DIN/ISO: G480
option 17)

Please note while programming:

The functioning of the calibration cycle is dependent on
machine parameter CfgTTRoundStylus (No. 114200).
Refer to your machine manual.
The functioning of the cycle is dependent on machine
parameter probingCapability (No. 122723). (This
parameter permits e.g. tool length measurement with
a stationary spindle to be enabled and tool radius- and
individual tooth measurement to be simultaneously
disabled.) Refer to your machine manual.
Before calibrating the touch probe, you must enter the
exact length and radius of the calibrating tool into the
tool table TOOL.T.
The position of the TT within the machine working
space must be defined by setting the machine
parameters centerPos (No. 114201) > [0] to [2].
If you change the setting of any of the machine
parameters centerPos (No. 114201) > [0] to [2], you
must recalibrate.

Cycle parameters

Q260 Clearance height?: Enter the position in the
spindle axis at which there is no danger of collision
with the workpiece or fixtures. The clearance
height is referenced to the active workpiece
preset. If you enter such a small clearance height
that the tool tip would lie below the level of the
probe contact, the TNC automatically positions
the tool above the level of the probe contact
(safety zone from safetyDistToolAx). Input range
-99999.9999 to 99999.9999
HEIDENHAIN | TNC 620 | User's manual for cycle programming | 10/2017
NC blocks in old format
6 TOOL CALL 1 Z
7 TCH PROBE 30.0 CALIBRATE TT
8 TCH PROBE 30.1 HEIGHT: +90
NC blocks in new format
6 TOOL CALL 1 Z
7 TCH PROBE 480 CALIBRATE TT
Q260=+100 ;CLEARANCE HEIGHT
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