HEIDENHAIN TNC 320 - Please Note While Programming; Cycle Parameters

Touch Probe Cycles: Automatic Tool Measurement
17.3 Calibrating the wireless TT 449 (Cycle 484, DIN/ISO: G484, DIN/
ISO: G484)
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
Please note while programming:
Danger of collision!
To avoid collisions, the tool must be pre-positioned
before the cycle call if Q536 is set to 1!
In the calibration process, the TNC also measures
the center misalignment of the calibrating tool by
rotating the spindle by 180° after the first half of the
calibration cycle.
The functioning of the calibration cycle is dependent
on machine parameters. Refer to your machine
manual.
The calibrating tool should have a diameter of
more than 15 mm and protrude approx. 50 mm
from the chuck. When using a cylinder pin of
these dimensions, the resulting deformation will
only be 0.1 µm per 1 N of probing force. The use
of a calibrating tool of too small a diameter and/
or protruding too far from the chuck may cause
significant inaccuracies.
Before calibrating the touch probe, you must enter
the exact length and radius of the calibrating tool into
the tool table TOOL.T.
The TT needs to be recalibrated if you change its
position on the table.
Cycle parameters
Q536 Stop before running (0=Stop)?: Specify whether to stop
before cycle start or run the cycle automatically without stopping:
0: Stop before running the cycle. A dialog asks you to manually
position the tool above the tool touch probe. After moving the tool to
the approximate position above the tool touch probe, press NC start
to continue the calibration process or press the CANCEL soft key to
cancel the calibration process
1: No stop before running the cycle. The TNC starts the calibration
process from the current position. Before running Cycle 484, you
must position the tool above the tool touch probe.
NC blocks
6 TOOL CALL 1 Z
7 TCH PROBE 484 CALIBRATE TT
Q536=+0 ;STOP BEFORE
RUNNING