I'm trying to understand how to tune a controller. The one I have is PI. I've searched some videos online where it talks about getting the Process Gain, as opposed to the Controller Gain. Is there a way for me to determine the Process Gain without messing with the Controller Gain? Or is there any advice on what I need to do to figure this out?
My confusion is coming from using graphical methods to determine the Process Gain, Dead Time, and Process Time Constant. Do I set the Controller Gain to 0 and see what happens, then get those values from there? Or do I attempt to modify the Controller Gain until I see constant oscillations and call that the Process Gain, then use a correlation for that to get my "true" Controller Gain? Any advice is appreciated, thanks!
My confusion is coming from using graphical methods to determine the Process Gain, Dead Time, and Process Time Constant. Do I set the Controller Gain to 0 and see what happens, then get those values from there? Or do I attempt to modify the Controller Gain until I see constant oscillations and call that the Process Gain, then use a correlation for that to get my "true" Controller Gain? Any advice is appreciated, thanks!