HEIDENHAIN TNC 640 (34059x-01) ISO programming - Manual (Page 54)

54 Introduction
2.1 The TNC 640
2.1 The TNC 640
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 and drilling
machines, as well as machining centers, with up to 18 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. For quick calculations you can
call up the on-screen pocket calculator at any time.
Keyboard and screen layout are clearly arranged in such a way that the
functions are fast and easy to use.
Programming: HEIDENHAIN conversational and
ISO formats
The HEIDENHAIN conversational programming format 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 performs the necessary calculations
automatically. Workpiece machining can be graphically simulated
either during or before actual machining.
It is also possible to program the TNCs in ISO format or DNC mode.
You can also enter and test one program while the control is running
another.
Compatibility
Machining programs created on HEIDENHAIN contouring controls
(starting from the TNC 150 B) may not always run on the TNC 640. If
NC blocks contain invalid elements, the TNC will mark them as
ERROR blocks when the file is opened.
Please also note the detailed description of the differences
between the iTNC 530 and the TNC 640 (see "Comparison:
Functions of the TNC 640 and the iTNC 530" on page 481).