Design And Research Of Spreader Control System Based On CC-Link

Spreader is a key part of modern continuous handling systems for bulk materials,coordinating bucket wheel stacker reclaimer and other large construction machinery in use.Spreader is widely used in coal, metallurgy, mining, power plants and other industrial portfields. With the development to automation and intelligent of Spreader, its control methodsare constantly changing and progressing. The issue was from the cooperation with TianjinHeavy Steel Machinery Equipment Co., Ltd. joint project: the introduction of technologyand the development in large-scale and high-efficient loading and unloading equipment ofmaterials. At present, control system is not mature and the efficiency of spreader is low inthe domestic productions, mainly rely on foreign imports. To achieve automation, it isrelated to the knowledge about many industries, and needs the coordination of all fullyautomated machinery in the entire mine site. We design a automated control system basedon field bus spreader in order to achieve intelligent in the nearly future.The electrical system of spreader is very large and complex, so there are many controlpoints, mainly on the low voltage part. In order to achieve high-effective and automated,we use field bus control mode. Belts carry soil. In order to improve the efficiency of dump,we need to control the amount of soil using detected and closed-loop control equipment inthe trailer belts entrance. And when the control system of spreader fails, it can locate anddisplay the faults quickly by a friendly man-machine interface.Firstly, from the overall presentation of the spreader machine structure, process andcontrol information, we select the better field bus. It draws a system based on the overallCC-Link field bus control design. Then we descript a development of the hardwareplatform. It is divided into auxiliary control management systems and detection systemsthrough the control function. Core hardware and critical control of the key parts system aredescripted.Secondly, the structure of spreader is large and complex, difficult and multi-pointcontrol. The software control system is designed based on the fault diagnosis principle ofPLC in software program. Friendly interface that HMI system proposed, which focus onthe principle of fault diagnosis based PLC applications in the program.Finally, it introduces the communication process between master and slave station. With the master station and slave station setted up, it presents the result of the controlsystem debugging in the laboratory. It introduces the effect of program design based on thePLC fault diagnosis, and the control system on-site commissioning of the foundation. Thepaper will lay the foundation for prototype manufacturing.