描述
输入的灵敏度各厂家对PLC的输人端电压和电流都有规定,如日本三菱公司F7n系列PLC的输入值为:DC24V、7mA,启动电流为4.5mA,关断电流小于1.5mA,因此,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,Bp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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BTV01.2CA-08N-50A-AB-NN-FW INDRAMAT
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INDRAMAT DDC01.2-N100A-DS01-02-FW USPP DDC012N100ADS010
INDRAMAT DDC01.2-N100A-DS68-00-FW USPP DDC012N100ADS680
INDRAMAT CLM1.3-X-0-2-B-FW USPP CLM13X02BFW
BTV40.1BH8-256S-P6C-UN-FW INDRAMAT
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INDRAMAT CCD01.1KE19-01FW USPP CCD011KE1901FW
INDRAMAT BTV20.2EA-64B-33C-D-FW COMPUTER CONTROL*NIB*