HEIDENHAIN NC 124 - Manual (Page 7)

TNC 124 7
Software Version
This User's Manual is for TNC 124 models with the following software
version:
Progr. 246 xxx-16.
The x's can be any numbers.
NC and PLC software numbers
The NC and PLC software numbers of your unit are displayed on the
TNC screen after switch-on.
Location of use
The TNC complies with the limits for a Class A device in accordance
with the specifications in EN 55022, and is intended for use primarily
in industrially-zoned areas.
TNC 124
TNC family
What is NC? NC stands for “Numerical Control,” that is, control of a
machine tool by means of numbers. Modern controls such as the
TNC have a built-in computer for this purpose and are therefore called
CNC (Computerized Numerical Control).
From the very beginning, the TNCs from HEIDENHAIN were devel-
oped specifically for shop-floor programming by the machinist. This
is why they are called TNC, or “Touch Numerical Controls.”
The TNC 124 is a straight cut control for boring machines and milling
machines with up to three axes. It also features position display of a
fourth axis.
Conversational programming
Workpiece machining is defined in a part program. It contains a
complete list of instructions for machining a part, for example, the
target position coordinates, the feed rate and the spindle speed.
You begin programming each machining step by simply pressing a
key or soft key. The TNC then asks for all the information that it
needs to execute the step.
For detailed technical information refer to the Technical
Manual for the TNC 124.