HEIDENHAIN ITNC 530 Service Manual

1– 654 HEIDENHAIN Service Manual iTNC 530
1.3 PWM Signals
Digital axes and spindles are driven with PWM signals.
PWM is the abbreviation "Pulse Width Modulation". The information (speed, torque) for the
output stages is converted into a pulse and pause ratio.
The PWM signal is generated in the HEIDENHAIN control and is transferred to the inverter via
PWM interfaces.
The output signal of the current controller is compared to a delta voltage (e.g., 5 kHz fixed
frequency) to create the PWM signal. At each interface of the current controller signal and the
delta voltage there is a switchover from pulse to pause.
PWM

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