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ST Blowdown Pit Pump Operating (Level LL(E1) (Active (X1 Active First Pump…
ST Blowdown Pit Pump Operating
Level LL(E1)
Active
X1 Active First Pump and Sec.Pump Waiting For Command Start
De-Active
X1 De-Active First Pump Stop
Level L(E2)
Active
CX1 Active First Pump Run (Depend on your select)
De-Active
X2 De-Active Sec. Pump Stop
First Pump Run
STOP - Level < LL
RUN - Level >L
Level H(E3)
Active
X3 Active Sec. Pump Run
DeActive
E3 De-Active, X3 Still Active (Self Holding by X3)
Level HH(E4)
Active
X4 Active Alarm and Horn
De-Active
X4 De-Active Alarm Gone
Second Pump Run
RUN Level > H
STOP - Level < L