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2 Introduction
2.1 General Information
December 2001
HEIDENHAIN contouring controls are designed for use with milling, drilling
and boring machines as well as machining centers.
The TNC 426 PB/M, TNC 430 PA/M features integral digital drive control and
controls the power stages via PWM signals.
Integration of the drive controller in the TNC 426 PB/M, TNC 430 PA/M offers
the following advantages:
n
All the software is contained centrally in the NC; this means that the
individual components of the NC such as feed axes, spindle, NC or PLC are
optimally matched.
n
High control quality, because the position controller, speed controller and
current controller are combined into one unit.
n
The same functions are available for commissioning, optimizing and
diagnosing feed drives as well as spindles.
With the TNC 426 PB, up to five axes and spindle speeds of up to
12 000 rpm can be controlled digitally (option: 30 000 rpm).
The TNC 430 PA supports up to 6 digitally controlled NC axes, 3 analog
controlled secondary axes, and digitally controlled spindle speeds up to
30 000 rpm.
General Information
2 – 3
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