CD Automation srl
CD3200-1PH from 15A to 110A
User’s Manual
7
2
Introduction
A thyristor unit is semiconductor device which acts as a switch formed by two thyristors in ant parallel.
To switch on the alternating current the input signal will be on and the thyristor will switch off at first
Zero Crossing voltage with no input signal.
The benefits of thyristor units compared with elettromechanical contactors are numerouses: no moving
parts, no maintenance and capacity to switch very fast. Thyristors are the only solution to control
transformers and special loads that change resistance with temperature and with age.
Load
Thyristor
2.1
Advantages compared with analog thyristor unit
Communication RS485 is a standard feature of CD3200 this allows the use of many information like:
current, power, load state and all the parameters for diagnostic and configuration. Ulterior advantages of
the digital system vs the analogical is the flexibility and the possibility of implement special
characteristics without change the hardware. Several strategies can be implemented and selected
through the configuration parameters.
With CD-KP, you can have access to the configuration parameters without expose at the dangerous
voltage inside the cabinet and without stop the plant.
