HEDT300340R1 ED1780A ABB

ABB MCOB-01 3HNE00010-1
ABB CMA125 3DDE300405
ABB DC551-CS31 1SAP220500R0001
ABB TA524 1SAP180600R0001
ABB 3BHB005688R0001 UNS2881A-P
ABB 3BHB002916R0101 UFC721AE

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Description

当开启或关闭电动阀门时,根据阀门开启、关闭时间不同,设置延时时间,经过延时检测开到位或关到位信号,如果这些信号不能按时准确返回给PLC,说明阀可能有故障,做阀故障报警处理。程序设计如图5所示。X2为阀门开启条件,Y1为控制阀动作输出,定时器定时时间大于阀开启到位时间,X3为阀到位返回信号,R1为阀故障位。

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