HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 291)

11 Test Run and Program Run 276
1
1
.1 Gr
aphics
11.1 Graphics
In the program run modes of operation as well as in the Test Run
mode, the TNC provides the following three display modes:
Using soft keys, select whether you desire:
■ Plan view
■ Projection in 3 planes
■ 3-D view
The TNC graphic depicts the workpiece as if it were being
machined with a cylindrical end mill. If a tool table is active, you can
also simulate the machining operation with a spherical cutter (not
TNC 410). For this purpose, enter R2 = R in the tool table.
The TNC will not show a graphic if
■ the current program has no valid blank form definition
■ no program is selected
With the TNC 426, TNC 430 you can use machine parameters 7315
to 7317 to have the TNC display a graphic even if no tool axis is
defined or moved.
A graphic simulation is not possible for program sections
or programs in which a
■ Rotary axis movement
■ Tilted working plane cycle
are defined. In this case, the TNC will display an error
message.
Overview of display modes
The TNC displays the following soft keys in the Program Run (not
TNC 410) and Test Run modes of operation:
Display mode Soft key
Plan view
Projection in 3 planes
3-D view
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