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AFC40075B2S

AFC40075B2S

AFC40075B2S

　PLC本身的抗*力一般都很強。通常，只能將PLC的電源與系統的動力設備電源分開配線，對于電源線來的干擾，一般都有足夠強的抑制能力。但是，如果遇上特殊情況，電源干擾特別嚴重，可加接一個帶屏蔽層的隔離變壓器以減少設備與地之間的干擾，提高系統的可靠性。如果一個系統中含有擴展單元，則其電源必須與基本單元共用一個開關控制，也就是說，它們的上電與斷電必須同時進行。良好的接地是保證PLC安全可靠運行的重要條件。

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