Hey guys, this is my first post on this forum, so sorry if it isn't organized correctly or in the right sub-forum. I've got a few questions about this circuit for use in preventing over-rotation of an electric motor actuating a butterfly valve. Firstly, can anyone explain to me how exactly it works? I have a vague idea of how it operates, but I'm a mechanical engineering student so circuits like these are a little bit out of my wheelhouse. It's operated by a 3 position momentary toggle switch. You click it in either travel direction for just a moment, and it returns to its central position when not being touched. Secondly, how exactly would I go about modifying it for a different motor it was not calibrated to operate? The original motor was destroyed, and the replacement only actuates the valve about 1/3 of the total distance it should travel. So I'm left with either open, or partially open. Thank you for any and all help.