Design of Intelligent Control System for Fan Based on PLC
This paper introduces a design scheme of an intelligent control and energy consumption monitoring system for fans based on PLC.The system utilizes a programmable logic controller(PLC)as the core control unit and achieves in-telligent control and energy consumption monitoring of the fan through Modbus communication protocol.The system adopts intelligent electricity meters,current transformers,frequency converters and other equipment,and controls the fan and col-lects data through PLC.The human-machine interface is also achieved through touch screen.The system supports multiple fan operating modes and can monitor energy consumption and alarm information in real-time.This system has openness,stability,and reliability,and is suitable for fan control and energy consumption management in the chemical industry.
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