HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 269)

HEIDENHAIN TNC 128 269
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.4 Defining coor
dinat
e
tr
ansf
or
mations
10.4 Defining coordinate
transformations
Overview
As an alternative to the coordinate transformation Cycle 7 DATUM
SHIFT,
you can use the TRANS DATUM plain-language function. Just as
in Cycle 7, you can use TRANS DATUM to directly program shift values or
activate a line from a selectable datum table. In addition, there is also
the TRANS DATUM RESET function, which you can easily use to reset a
datum shift.
TRANS DATUM AXIS
You can define a datum shift by entering values in the respective axes
with the TRANS DATUM AXIS function. You can define up to nine
coordinates in one block, and incremental entries are possible.
Proceed as follows for the definition:
 Show the soft-key row with special functions
 Select the menu for defining various plain-language
functions
 Select transformations
 Select datum shifting with TRANS DATUM
 Select the value input soft key
 Enter the datum shift in the affected axes, confirming
with the ENT key each time
Example: NC block
13 TRANS DATUM AXIS X+10 Y+25 Z+42
Values entered as absolute values refer to the workpiece
datum, which is specified either by datum setting or with
a preset from the preset table.
Incremental values always refer to the datum which was
last valid (this may be a datum which has already been
shifted).