本文在分析帶式輸送機的工作過程的基礎上，對機械電子式軟起動裝置的控制系統進
行了研究，對控制系統進行了硬件與軟件設計。使用可編程控制器對變頻器的輸出頻率進行控制，實現對調速電機轉速的控制。調速電機與主電機的轉速經差動行星輪系的速度合成，可使傳動系統在很大范圍內無級調速，實現對負載的可控起動。
關鍵詞：機械電子, 可編程控制器, 帶式輸送機
Abstract: On the basis of analyzing the working process of belt conveyor, the control
system of the mechatronics soft start equipment is studied，the hardware and software
are designed for control system. The programme logic controller is utilized to
control the inverter's output frequency which accomplishes controlling the
velocity of speed-controlling asynchronous moter .The velocity between main
asynchronous moter and speed-controlling asynchronous moter is composed by way of
the differential planetary gear train，the tranmission system is made to regulate
velocity stepless in large scope which succeed in controlling starting progress of
load.
Key words: Mechanical electron,PLC, Belt conveyer