Description
若该执行机构的动作时间超过60s(即对应定时器的设定时间),PLC还没有接收到动作结束信号,定时器延时接通的常开触点发出故障信号,该信号停止正常的循环程序,启动报警和故障显示程序,使操作人员和维修人员能迅速判别故障的种类,及时采取排除故障的措施。
GENERAL ELECTRIC DS3800NMEA1H1E USPP DS3800NMEA1H1E
GENERAL ELECTRIC DS3800NMEA1P1K USPP DS3800NMEA1P1K
GENERAL ELECTRIC DS3800HRRB USPP DS3800HRRB
General Electric DS3800HXPD1B1D Circuit Board NEW