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1 畢業(yè)設計(論文)報告 題 目 基于 MM440變頻器的交流電機調速控制 摘要 本課題是用可編程序控制器 (PLC)和變頻器控制交流電動機工作,由交流電動機帶 動流水線工作臺運行,其運行轉速按一定規(guī)律變化,并可在自動運行、單速運行及調整 維護三種狀態(tài)下進行切換。 Abstract Ac motor is controlled by programmable controller (PLC) and frequency converter in this topic, assembly line is drived by ac motor, its operation speed changes according to certain rules, and can switch in three states, automatic operation, single speed