本文首先分析牵引机的功能及动作循环过程,采用PLC和伺服电动机作为控制方案;然后做出部件的电气原理图,分析需要控制的部件,根据需要控制的部件具体分析控制的相关部位,并确定出控制所需的输入、输出点数,由输入、输出点数选择PLC的型号,分配输入、输出通道;接着设计系统的控制方式,由系统的控制方案设计出控制流程图,最后,完成程序设计的硬件连接和程序设计。
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