HEIDENHAIN TNC 426, User Manual

Page: 427 / 502

HEIDENHAIN TNC 426, TNC 430 401
1
1
.1 Gr
aphics
Limitations during program run
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
U
Press the soft key for plan view.
U Select the number of depth levels (after shifting the
soft-key row). 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,” page 402.
In addition, you can shift the sectional planes with the corresponding
soft keys:
U
Press the soft key for projection in three planes.
U
Shift the soft-key row until the TNC displays the
following soft keys:
The positions of the sectional planes are visible during shifting.
Coordinates of the line of intersection
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.
Function Soft keys
Shift the vertical sectional plane to the right
or left
Shift the horizontal sectional plane upwards
or downwards