Clients/SSLOCSD/evernote/Influent_Pump_Control.md

# Influent Pump Control BASIC CONTROL DESCRIPTION REST - LEVEL IS < LEAD START AND ALL PUMPS ARE OFF DETERMINE LEAD/LAG1/LAG2/LAG3 START / STOP PUMPS LEVEL PID CONTROL  MONITOR PROCESS / ANNOUNCE ALARMS HMI / SCADA POINTS TO DISPLAY FOR HMI PUMP STATUS - OOS/READY/CALLED/RUNNING/FAULTEDPUMP RUNTIMESPUMP POSITIONS SELECT AND DISPLAYLEVEL CONTROL SETPOINTSLEVEL WITH TRENDPUMP SPEED/AMPS/POWER WITH TRENDPID TRENDALARM DISPLAY PUMP POSITION Narrative:Pump position will be determined by operator selection via HMI or SCADA.Alert the operator if more than one pump is in the same positionDisallow selection of an OOS pumpDelay operational change of pump so changes can be madeTrack time that each pump has been in each position PUMP STATUS Narrative:A pump is "Ready" when the VFD communications are established and the VFD is Ready and the VFD is not faultedA pump is "Called" when the pump is Ready and the position is calledA pump is "Running" when the VFD is not faulted and the pump speed is >0A pump is "Out-of-Service" if the VFD is not ReadyA pump is "Faulted" if the VFD is in fault or if the pump fails to start LEVEL CONTROL Narrative:Wetwell level is input by Analog InputLow Level Alarm condition = the level is < the LLA setpoint for 5 seconds