Pump Control

Setting a Pump to Run On [MR 200]

When you need to pump below the normal OFF setpoint, use P130 (Pump Run-On Interval) and P131 (Pump Run-On Duration) to control this event.

Example:

The pump connected to Relay Three is set to pump for an extra 60 seconds every 5 hours.

Parameter

Index

Value

Description

P130

3

5

Time in hours of run-on interval.

P131

3

60

Run-on for 60 seconds.

Note: P130 counts when the indexed relay is tripped, not the number of pump cycles. If the indexed relay only trips once every four pump cycles then the actual interval of the run-on will be 20 pump cycles, or five cycles of Relay Three.

Setting the Pump Start Delays [MR 200]

The pump start delay ensures that all of the pumps do not start at once to avoid power surges. There are two parameters used here: P132–Pump Start Delay and P133–Pump Power Resumption Delay. The default is 10 seconds but you can increase this if your pumps take longer to spin up.

Example:

The delay between pumps is set to 20 seconds and the delay of the first pump is set to 30 seconds.

Parameter

Index

Value

Description

P132

G

20

Wait at least 20 seconds between pump

 

 

 

starts.

P133

G

30

Wait for 30 seconds when power is restored.

Reducing Wall Cling [MR 200]

Use the Wall Cling parameter to randomly alter the ON and OFF setpoints over a range. This eliminates the ridge of material that builds up at the setpoint that can give false echoes.

This setting may increase the number of days between trips to clean the wet well.

Wall cling reduction is set by P136. The relay setpoints ON and OFF are randomly varied inside a range so the material level does not stop at the same point.

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MultiRanger 100/200 – INSTRUCTION MANUAL

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Siemens 200 instruction manual Setting a Pump to Run On MR, Setting the Pump Start Delays MR, Reducing Wall Cling MR