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

Touch Probe Cycles: Automatic Tool Measurement | Calibrating the wireless TT 449 (Cycle 484, DIN/
ISO: G484, Option 17)

Please note while programming:

Danger of collision!
To avoid collisions the tool must be pre-positioned before calling
the cycle with Q536=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.
Specify whether to stop before cycle start or run the cycle
automatically without stopping.
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.
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. 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 TNC starts the calibration process
from the current position. Before running Cycle 484, you must
position the tool above the tool touch probe.
HEIDENHAIN | TNC 620 | User's manual for cycle programming | 10/2017
NOTICE
NC blocks
6 TOOL CALL 1 Z
7 TCH PROBE 484 CALIBRATE TT
Q536=+0 ;STOP BEFORE RUNNING
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