FS450R17KE3/AGDR-81C ABB

ABB PFEA111-20 24DC 500MA
ABB ABB PFTL101A 2KN with 2 15m cable
ABB HIEE205012R0001
ABB HIEE200130R0002
ABB HIER466513P1111

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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,并且选用输人为共漏型输入的PLC,输入元件的公共点电位相对为负,电流是流出PLC的输入端。

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