品牌:GE | 规格:FANUC A16B-2200-091 | 材质:FANUC A16B-2200-091 |
产地:日本 |
FANUC A16B-2200-091
FANUC A16B-2200-091
FANUC A16B-2200-091
PLC 的接地
良好的接地是保证 PLC 可靠工作的重要条件,可以避免偶然发生的电压冲击危害。 PLC 的接地线与机器的接地端相接,接地线的截面积应不小于 2mm2 ,接地电阻小于 100Ω ;如果要用扩展单元,其接地点应与基本单元的接地点接在一起。为了抑制加在电源及输入端、输出端的干扰,应给 PLC 接上地线,接地点应与动力设备(如电机)的接地点分开;若达不到这种要求,也做到与其它设备公共接地,禁止与其它设备串连接地。接地点应尽可能靠近 PLC 。
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