HEIDENHAIN TNC 640 (34059x-05) - Manual (Page 536)

Manual operation and setup
15.5 Datum management with the preset table
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TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 1/2015
15.5 Datum management with the preset
table
Note
You should definitely use the preset table if:
Your machine is equipped with rotary axes (tilting
table or swivel head) and you work with the
function for tilting the working plane
Your machine is equipped with a spindle-head
changing system
Up to now you have been working with older TNC
controls with REF-based datum tables
You wish to machine identical workpieces that are
differently aligned
The preset table can contain any number of lines (datums). To
optimize the file size and the processing speed, you should use
only as many lines as you need for preset management.
For safety reasons, new lines can be inserted only at the end of the
preset table.