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本文首先分析牽引機的功能及動作循環(huán)過程,采用PLC和伺服電動機作為控制方案;然后做出部件的電氣原理圖,分析需要控制的部件,根據(jù)需要控制的部件具體分析控制的相關部位,并確定出控制所需的輸入、輸出點數(shù),由輸入、輸出點數(shù)選擇PLC的型號,分配輸入、輸出通道;接著設計系統(tǒng)的控制方式,由系統(tǒng)的控制方案設計出控制流程圖,最后,完成程序設計的硬件連接和程序設計。
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responsi ble for the devel opment of com pany manageme nt, including t he deve lopme nt of settleme nt and settlement sta ndar ds of preparation, the business unit clearing w ork inspe ction and gui dance, busi ness settlement a udit ; 23, i s in charge of the company business and costs calculation and a nalysis of new proje cts a nd to develop sta ndards and pr ovide t he ba sis for decision -mak