HEIDENHAIN ITNC 530 Service Manual

July 2010 1 – 645
1 Annex: Principle of Function of the iTNC 530 Control
1.1 Introduction
This chapter gives you block diagrams and brief explanations of the principle of function of the
iTNC 520 control.
Fundamental knowledge about controls, encoders, drives, electronics and mechanics simplifies
error diagnosis and is often indispensible for successful servicing.
Ask your machine manufacturer for detailed or special explanations (e.g., machine functions,
circuit diagram of the machine)!
1.2 The Control Loop
The control loop for
analog axes/
spindles
The iTNC 530 can also control analog axes / spindles.
The position controller is located in the control, speed and current controller in the analog servo
amplifier.
The analog servo amplifiers are supplied with voltage values of - 10 V and + 10 V (speed
command interface).
Figure: Simplified illustration for the analog control loop

HEIDENHAIN ITNC 530 Specifications

General

Control Type	CNC
Look-ahead	Yes
Spindle control	Yes
Touch probe cycles	Yes
Operating voltage	24 V DC
Programming	Conversational and DIN/ISO programming
Interpolation	Linear, Circular, Helical
Data Interface	Ethernet, USB, RS-232
Memory	1 GB
Programming Language	HEIDENHAIN plain language
Operating Modes	Manual, Automatic, MDA
Software Options	Various software options available