1783-EMS08T/B
3. 安装一套HE300电铲专用四象限变频器,变频器由五个机柜组成,分别是进线柜、AFE整流柜、提升单元柜、推压单元柜、回转/行走单元柜,对应的单元分别驱动电铲的几大动作机构。
4. 各机构主令控制信号、开关信号及制动信号均由一台PLC集中控制。
● 控制原理简述
6kV电源经真空断路器输入到变压器,二次侧输出电压690V,为提升、推压和回转/行走系统的工作电源,交直流柜、各通风机及辅助电源由副变压器供电。交直流柜受电后,合上空压机、机棚通风及直流电动机散热风机电源开关,起动各风机。并将起动信号经现场总线送PLC,同时提升、推压、回转/行走调速柜受电,经内部自检后将信
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