1. High reliability is required, because once the CNC system fails, it will cause huge economic losses
2. It has high adaptability to the environment. The CNC system is generally an industrial control machine, and its working environment is a workshop environment. It is required to have the ability to work under the environmental conditions of vibration, high temperature, humidity and various industrial interference sources
3. The interface circuit is complex. The numerical control system should be matched with all kinds of numerical control equipment and external equipment. It should deal with all kinds of situations in production at any time and adapt to various process requirements of the equipment. Therefore, the interface circuit is complex and the failure rate is high.
