Hello everyone.
I have a proportional air valve FESTO MPPE-1/4-420-B. It controls pressure for a spray gun. The operational pressure is 800 mBar. The gun consume about 2 l/sec. During the spaying the pressure drops sometime down to 600 mBar, sometime even to 400 mBar. I tried to use a PID. That valve has internal feedback. My PID doesn’t work. Too much oscillation. Am I missing something in PID configuration?
Thanks.
I have a proportional air valve FESTO MPPE-1/4-420-B. It controls pressure for a spray gun. The operational pressure is 800 mBar. The gun consume about 2 l/sec. During the spaying the pressure drops sometime down to 600 mBar, sometime even to 400 mBar. I tried to use a PID. That valve has internal feedback. My PID doesn’t work. Too much oscillation. Am I missing something in PID configuration?
Thanks.