Regulation issues with control valves
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I spent the whole day today adjusting the PID settings of the control valve at my workplace, but fluctuations still occur. Although they are less severe than before, they’re not yet ideal. I would like to ask whether it’s possible to get this control valve to function properly Our software is ForceControl 6.0. So, what is the general range for this PID? Also, how is the Great God Gate adjusted? Could you please give some guidance? Thank you so much
This should be discussed in more detail from a process perspective, after all, this control valve is designed to serve the process
Combining it with the production process could also be an approach
Well, I think this control valve doesn’t belong to the category of instruments, right? So I’ve posted it in these sections, hehe. Do you know how to adjust it?
The key issue is that some of the control valves here are currently being adjusted manually, when they were originally designed to be automated. I think it’s a bit of a waste. Since there are many experts in our forum, I thought I’d come and ask for advice. I haven’t dealt with this much before; I only know the general principles of how to make adjustments. But today, my attempts at making adjustments didn’t yield very satisfactory results
I’m not from the instrumentation field either; I work in process engineering. In the past, I’ve modified the PID settings for valves that didn’t respond well. Personally, I think it’s necessary to discuss the situation with the process engineers to find out exactly what’s causing the issues and how long there’s operational delay. If the designed PID isn’t suitable, then gradual testing is required
I also tried adjusting it using a PID controller, but it wasn’t possible to achieve a straight line; there were fluctuations. Later, when we ordered the control valve, we provided the manufacturer with detailed information on the process parameters, and the results were much better.
Do you mean you replaced the valve directly? So the valve selection was problematic before? So, is this related to the selection process?
Yes, I adjusted it throughout the day today, but the results weren’t very good – there were still fluctuations. Is this related to the choice of valve?
First, consider valve selection, then instrument configuration; once the hardware is in order, the PID control can generally be adjusted to work stably. .
This post was last edited by tiansf5936 on 2016-5-11 21:18. Do you mean that this is also related to valve selection? How can I tell if the selection for this is correct? Are there any standards? Also, are there any requirements for this instrument configuration? Please give your advice. Thank you