HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 292)

HEIDENHAIN TNC 410, TNC 426, TNC 430 277
Limitation during Program Run
(with TNC 426, TNC 430)
A graphical representation of a running program is
not possible if the microprocessor of the TNC is
already occupied with complicated machining tasks
or if large areas are being machined. Example:
Multipass milling over the entire blank form with a
large tool. The TNC interrupts the graphics and
displays the text ERROR in the graphics window.
The machining process is continued, however.
Plan view
ú Press the soft key for plan view.
ú Select the number of depth levels
(after shifting the soft-key row, not TNC
410). You can choose between 16 or 32
shades of depth.
The deeper the surface, the darker the
shade.
Plan view is the fastest of the three
graphic display modes.
Projection in 3 planes
Similar to a workpiece drawing, the part is displayed
with a plan view and two sectional planes. A symbol
to the lower left indicates whether the display is in
first angle or third angle projection according to ISO
6433 (selected with MP7310).
Details can be isolated in this display mode for
magnification (see “Magnifying details”, not TNC
410).
In addition, you can shift the sectional planes with
the corresponding soft keys:
ú Press the soft key for projection in
three planes.
ú Shift the soft-key row until the TNC
displays the following soft keys:
1
1
.1 Gr
aphics
Function Soft keys
Shift the vertical sectional plane
to the right or left
Shift the horizontal sectional plane
upwards or downwards
The positions of the sectional planes are visible during shifting.
Coordinates of the line of intersection (not TNC 410)
At the bottom of the graphics window, the TNC displays the
coordinates of the line of intersection, referenced to the workpiece
datum. Only the coordinates of the working plane are shown. This
function is activated with machine parameter 7310.
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