C-type roll control system design Summary Currently， the domestic large-scale thermal power plants are part of the fuel used Dumper relay control system， its poor reliability， fault and more to maintain so Programmable controller for using software to control its high reliability and flexibility in the field of industrial control， especially in large-scale control system is widely PLC in the dumper on the application of transformation to improve the reliability of equipment operation， safety of the operator no dead ends， the operator can stay away from dust-exposed areas， for businesses to increase efficiency by creating conditions for good economic benefits to the enterprise and social In this paper， produced by Omron programmable logic controller， and sensor technologies combined according to the system control requirements and process analysis to carry out I / O allocation table， and the use of ladder diagram programming， on the C-roll machine Roll control system of the introduction of programmable control technology， control procedures simplified， reliability and control accuracy was significantly improved operation and maintenance is greatly reduced， improving life of the With the programmable control technology in coal conveyance system in the promotion， will change the coal handling system control Pina Key words: C-type car dumper; PLC; ladder programming
