The closedcircuitcontrol system with frequency conversion for adjusting speed controlled by industrial computer is introduced with its control function and realization.
文章介绍了一种由工业计算机控制的变频调速闭环控制系统，同时介绍了该系统的控制功能和电气实现。
2
Dynamic performance of closedcircuitcontrol system is improved, and the tests are carried out to testify the reasonableness and the feasibility of the designed PLC control system.
同时，使闭环控制系统动态性能大大提高。通过试验，证实了控制系统设计的可行性和合理性。
3
A new channel-selecting control method in which keyboard is scanned by hardware circuit for searching the closed key is presented.