PFVI401 ABB

ABB partcode 3BDZ000398R1 technical RLM01
ABB IGBT module/IGBT FS225R12KE3/AGDR-71C
ABB ABB frequency converter/ACS800-104-0175-3+F272
ABB DSDX454L

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Description

一般PLC是可以直接将指令发到控制回路里,但也可能先由继电器中转。打个比方,如果你PLC的输出口带电是24VDC的,但是你的控制回路里画的图需要PLC供的节点却是220VAC的,那么你就必须在PLC输出口加上一个继电器,即指令发出时继电器动作,

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