HEIDENHAIN iTNC 530 (340 422) - Manual (Page 435)

HEIDENHAIN iTNC 530 435
8.9
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DATUM SETTING (Cycle 247)
With the Cycle DATUM SETTING, you can activate as the new datum
a preset defined in a preset table.
Effect
After a DATUM SETTING cycle definition, all of the coordinate inputs
and datum shifts (absolute and incremental) are referenced to the new
preset.
8 Number for datum?: Enter the number of the datum to
be activated from the preset table
Status display
In the status display the TNC shows the active preset number behind
the datum symbol.
Example: NC blocks
13 CYCL DEF 247 DATUM SETTING
Q339=4 ;DATUM NUMBER
Z
Z
X
X
Y
Y
If you operate the iTNC 530 with the setting PRESET =
OFF, Cycle 247 will run as described in the User's Manual
for software level 340 420-xx.
When activating a datum from the preset table, the TNC
resets all coordinate transformations that were activated
with the following cycles:
„ Cycle 7, Datum Shift
„ Cycle 8, Mirroring
„ Cycle 10, Rotation
„ Cycle 11, Scaling
„ Cycle 26, Axis-Specific Scaling
However, the coordinate transformation from Cycle 19,
Tilted Working Plane, remains active.
The TNC sets the preset only in the axes that are defined
with values in the preset table. The datums of axes
marked with—remain unchanged.
If you activate preset number 0 (line 0), then you activate
the datum that you last set by hand in a manual operating
mode.
Cycle 247 is not functional in Test Run mode.