Pierre Hinse C.E.T.
Integral wind-up is causing me problems. I have a temperature loop that stays a very long time below the set point, until the temperature catches up, then overshoots and stays there. It seems the PID2 loop is in "Integral Wind-Up", and won't touch the MV for a long period. I tried to switch from manual to auto to force the PID2 loop to reset, but it only works 75% of the time. Can I use the Reset Feedback register to force the PID2 loop to start backing off the MV as soon as the PV crosses the SP? Or how did you tackle such a situation?