Stepper motor control system based on motion control card

The upper control scheme of the motion control system generally includes a single-chip microcomputer system, a professional motion control PLC, a dedicated control system, and a "PC+ motion control card." The use of a single-chip microcomputer system to achieve motion control has a low cost, but it is difficult to develop and has a long cycle. This solution is generally applicable to users with large product batches, simple control system functions, and experience in the development of SCM systems. Many brands of PLCs are available with positioning control modules. Some PLC CPU units have their own motion control functions (such as the Panasonic FP0). This solution is generally applicable to equipment with relatively simple motion and fixed trajectory, such as feeders and automatic:A welders. Dedicated control systems are generally aimed at special equipment or specialized industries, such as Siemens' CNC system for lathes. Milling CNC system and so on. The "PC + motion control card" program will become a major development trend of the motion control system with the increasing popularity of PC (Personal Computer). This scheme can make full use of computer resources, and it is used in machines that have complex movement processes and mechanical trajectories and are relatively flexible. For example, currently popular open numerical control systems mostly adopt this scheme.

The control system introduced in this article is the "PC + motion control card" program, which is also the main content of this article.

The system is controlled automatically, which is easy to operate, with high production efficiency and good product quality. It can also greatly reduce the labor intensity of workers and the harm of the environment to the human body. PLC has high reliability and strong anti-jamming capability. Its programming is relatively simple, and its functions are easy to expand. It has certain value for other painting operations in the industry.