Heidenhain iTNC 530 (340 420) Manuel d'utilisateur Page 153

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HEIDENHAIN iTNC 530 125
5.5 Working with Cutting Data Tables
Table for workpiece materials
Workpiece materials are defined in the table WMAT.TAB (see figure
at upper right). WMAT.TAB is stored in the TNC:\ directory and can
contain as many materials as you want. The name of the material type
can have a max. of 32 characters (including spaces). The TNC displays
the contents of the NAME column when you are defining the
workpiece material in the program (see the following section).
Defining the workpiece material in the NC program
In the NC program select the workpiece material from the WMAT.TAB
table using the WMAT soft key:
U
UU
U Program the workpiece material: In the Programming
and Editing operating mode, press the WMAT soft
key.
U
UU
U The WMAT.TAB table is superimposed: Press the
SELECTION WINDOW soft key and the TNC displays
in a second window the list of materials that are
stored in the WMAT.TAB table.
U
UU
U Select your workpiece material by using the arrow
keys to move the highlight onto the material you wish
to select and confirming with the ENT key. The TNC
transfers the selected material to the WMAT block.
U
UU
U To terminate the dialog, press the END key.
If you change the standard workpiece material table, you
must copy it into a new directory. Otherwise your
changes will be overwritten during a software update by
the HEIDENHAIN standard data. Define the path in the
TNC.SYS file with the code word WMAT= (see
“Configuration file TNC.SYS,” page 130).
To avoid losing data, save the WMAT.TAB file at regular
intervals.
If you change the WMAT block in a program, the TNC
outputs a warning. Check whether the cutting data stored
in the TOOL CALL block are still valid.
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