Introduction; Overview - CD Automation REVEX PA User Manual

REVEX
PA from 35A to 90A
1

Introduction

A thyristor unit is semiconductor device which acts as
a switch formed by two thyristors in antiparallel.
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.

1.1 Overview

Current transformer and user interface
• Saves installation time and eases setup and commissioning
• Delivers a user-friendly, intuitive interface
Industry-leading design and serviceability
• Offers a robust SCR design to meet a rugged industrial environment's high quality and reliability needs
• Provides quick and easy access to maintain and service fuses and individual legs in minimal time
• Enables fast troubleshooting by providing helpful thermal system diagnostics
Comprehensive power controller range
• Provides wide range of options from simple single phase to complex three-phase loads to 600V
100kA short circuit current rating (SCCR) (Not reviewed by UL
• Enables greater protection in the event of a short circuit
® 508 Listed - PRELIMINARY, to be tested
c-UL
• Shortens project schedules, agency testing and expenses
Control modes: contactor, voltage, current or power
• Satisfies a wide range of demanding thermal applications
Load firing modes: zero-cross, burst fire, Phase Angle, Delayed Triggering
• Handles a wide range of load types including nichrome, medium and long waveform infrared lamps, moly,
transformers, silicon carbide, UV lamps and tungsten
• Protects and extends the life of connected loads
Wide range of communication protocols
• Enable factory and process automation with connectivity to process and equipment data via Modbus® RTU.
Modbus® TCP, Profibus, Profinet (available with external master communication module)
Open heater and shorted SCR indication
• Minimizes production downtime with easy to understand, intelligent, troubleshooting diagnostics
Integrated USB and user interface for configuration
• Easily and safely program configuration settings as the user interface can be powered through USB connec tion
• Eliminates need to work in a high voltage hazard environment. High voltage to the power controller and
system panel can be shut off and locked out for safety while configuring controller.
L1
L2
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User's manual
Thyristor
Load