BillRobinson
Member
I have an emergency bypass valve that I need to control around a flow using a PID loop. Just to give it a number, let's say that I need to open a valve is the flow is greater than 80; so 80 is the PID setpoint. Now lets say the flow is typically around 10-20, so if i use a PID loop it will nearly always calculate an output of 0%. This seems like a lot of unnecessary calcs for nothing.
So should I use the PID all the time or should I just turn it on when PV reaches 70? Any opinions?
So should I use the PID all the time or should I just turn it on when PV reaches 70? Any opinions?