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,
Siemens 6ES5244-3AB31 PC Board Pathfinder 4500 #22776
Siemens SIMODRIVE 611 BOARD 6SN1118-0DH21-0AA1**NEW**
Siemens 800amp Main circuit breaker panel board 208/120
Siemens 600amp main circuit breaker panel board 480/277
Siemens 800amp Main circuit breaker panel board 208/120