AI620 3BHT300005R1 ABB

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ABB RTXP18 RK926015-BH
ABB IMDSI14
ABB PM564-RP-ETH 1SAP121000R0071
ABB AI561 1TNE968902R1101
ABB AX561 1TNE968902R1301

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Description

PLC的良好接地是正常运行的前提。在设计时,PLC的接地应与动力设备的接地分开,采用专用接地;如不能分开接地时,应采用共用接地;绝对禁止采用共通接地方法。如图1所示,接地点应尽可能靠近PLC,接地线的线径应大于4mm2,接地电阻一般应小于10Ω

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