Design of numerical control system for stepper motor

According to some of low cost numerical control systems, in order to meet the demand of control precision, this paper has put forward to establish an economical numerical control system using the relative low-end electronic components. This system adopted PC as host computer. The axis card was constructed by serveral parts: Programmable counter, timer 8253 and programmable logic peripheral interface chip 8255. The experimental results show that this system can realize the high precision control of stepping motor. The numerical control system which is put up based on this mode has a number of advantages, such as less difficulty for development, shorter time for design and lower cost. It can be used in control teaching and some industrial applications.