HEIDENHAIN TNC 426 (280 476) - Manual (Page 28)

2 1 Introduction
1
.1 The TNC 426, the TNC 430
1.1 The TNC 426, the TNC 430
HEIDENHAIN TNC controls are workshop-oriented contouring
controls that enable you to program conventional machining
operations right at the machine in an easy-to-use conversational
programming language. They are designed for milling, drilling and
boring machines, as well as for machining centers. The TNC 426 can
control up to 5 axes; the TNC 430 can control up to 9 axes. You can
also change the angular position of the spindle under program control.
An integrated hard disk provides storage for as many programs as you
like, even if they were created off-line or by digitizing. For quick
calculations you can call up the on-screen pocket calculator at any
time.
Keyboard and screen layout are clearly arranged in a such way that the
functions are fast and easy to use.
Programming: HEIDENHAIN conversational and
ISO formats
HEIDENHAIN conversational programming is an especially easy
method of writing programs. Interactive graphics illustrate the
individual machining steps for programming the contour. If a
production drawing is not dimensioned for NC, the HEIDENHAIN FK
free contour programming carries out the necessary calculations
automatically. Workpiece machining can be graphically simulated
either during or before actual machining. It is also possible to program
in ISO format or DNC mode.
You can also enter and test one program while the TNC is running
another.
Compatibility
The TNC can execute all part programs that were written on
HEIDENHAIN controls TNC 150 B and later.