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Hi,
We have a pumpskid controlled by an outlet pressure transmitter. We wish to charge the line against a closed valve, stop the pump, and have it waiting until needed. When the closed valve is opened, the pressure will fall, and the pump will kick back on and be controlled to the target pressure. My question is, how can we use the functions of a vfd to achieve the three conditions?
1. Inlet pressure say 5 bar pump starts and charges up
2. Pump charged pressure say 15.5 bar and pump will stop and wait.
3. Target pressure once valve is opened say 15 bar.
How Can we achieve point 2 to stop the drive if point 3 is set lower using the functions of a vfd?
Thanks
We have a pumpskid controlled by an outlet pressure transmitter. We wish to charge the line against a closed valve, stop the pump, and have it waiting until needed. When the closed valve is opened, the pressure will fall, and the pump will kick back on and be controlled to the target pressure. My question is, how can we use the functions of a vfd to achieve the three conditions?
1. Inlet pressure say 5 bar pump starts and charges up
2. Pump charged pressure say 15.5 bar and pump will stop and wait.
3. Target pressure once valve is opened say 15 bar.
How Can we achieve point 2 to stop the drive if point 3 is set lower using the functions of a vfd?
Thanks