Sulzer ABS PC 441 - Configure the Pump Pit Parameters

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2.4 Congurethepumppitparameters
Table 2-5:
Pit settings
Level sensor type
Max number of pump running
Min time between relay change
Alternation
Alternative stop level
Start/stop on fast change
Station ow*
Calculation of pump capacity*
Overow
Backup running
Pit alarms
Pump blocking
Level sensor check
Tariff control
Level above sea
* MUST for accurate pump capacity calculation
Level sensor type (required parameter, default level sensor)
Analogsensororstart/stopoats.Analogsensorisrecommendedifyouwanttotrackthecapacityofthe
pumps and pumping volume.
Max number of pumps running (optional parameter)
Ifyourpipesystemcannothandletoohighows/pressureoryourpowergridhaslimitations,reducenumberof
pumps running at the same time. See section 3.4.1
Alternation (optional parameter)
Normalorasymmetrical
Normal:Thepumpsstartinsequencefrom1-4.Thereisalwaysonepumpstartattherst(lowest)startlevel.
Asymmetrical:Thepumpsaredividedintwogroupsthereonegroupisworkingmorefrequentlythantheother
group. See also section 3.4
Alternative stop level (optional parameter)
Thisfunctionistoaidreductionofsedimentsinthepitandavoidingoatingcrust
Start/stop on fast change (optional parameter)
Forexample:Ifthepumpstationispumpingclearwaterandaheavyrainllsthepitveryfast,thepumpcan
start before the level reach the start level.
Station ow (recommended parameters)
Under Meas. parameters set the Inow calculation=ONandyourpitshape,alsothefunctionEmptying or
Filling the pit must be set. System curve at duty pointisusedifthereisn’tanyOutlet pressure sensor.
Recommended is to setup the Pit area under Station ow.That’sbecausethepumpcalculationsshallpreform
as accurate as possible. This are bound to Energy calculation,Pump capacity and Outlet calculations. Best
accuracyofpumpcapacitycalculationsandpumpedvolumeiswhenanOutlet pressure sensor is used.
See section 3.2 for more information.
Calculation of pump capacity (recommended parameter)
Recommended to set Calculation=ON.Thelevelmustbeinthespanofminimumandmaximumduringthe
calculations.Makesurethatthealltimestogetherinstart delay/calculation time/stop delay in total must be in
one and the same pump sequence. See section 3.2 and forward.