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。
Reliance Snubber Resistor 2SR21200 D2-3291 230v NEW
NEW ALLEN BRADLEY 810-A09A 810A09A SER B RELAY NIB
FOXBORO 2AX-A4-S 2AXA4S CONTROL CARD AUTO-MANUAL
Reliance Snubber Resistor 2SR20600 D2-3291 230v NEW
TOSHIBA VFS7-4150UPLH TRANSISTOR INVERTER 25 Kva 20HP
MICRO MOTION RFT9712 1KN REMOTE FLOW TRANSMITTER