Description
当输入回路串有二极管或电阻(不能完全启动),或者有并联电阻或有漏电流时(不能完全切断),就会有误动作,灵敏度下降,对此应采取措施。另一方面,当输入器件的输入电流大于PLC的最大输入电流时,也会引起误动作,应采用弱电流的输入器件
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