Level gauge controls the feed pump
Thread Content
What is the simplest way to control it? I plan to use a float-type level gauge; what equipment is needed? It would be great if you could recommend a supplier. Thank you!
Based on your description: you want to use an analog level gauge signal to control the speed of the variable-frequency motor that drives the feed pump. As for which type of level gauge to use, it is determined by the medium being measured. Is it controlled and adjusted using DCS? The equipment you need to prepare includes: a float level gauge, DCS analog input/output cards, and a feed pump controlled by an inverter-driven motor. As for their respective power supplies, they are determined based on relevant requirements.
Now, to cut costs, a DCS is not needed
That is to use single-loop control for variable-frequency motors. It’s no longer possible to use the old DDZII or DDZIII models. At the industrial control exhibition in Shanghai last November, I saw a digital regulator that could control and adjust 5 circuits using a single module; its unit price seemed reasonable, so it should meet the owner’s requirements. By connecting the output signal to the SV terminal of the variable frequency motor, it will be possible to achieve the desired control. Specifically, it involves clarifying the technical parameters with the variable frequency motor manufacturers. I hope this is helpful to the original poster.
Thank you to all of you, guys:):victory: