The setpoint is set up by most likely who started it and can be ajusted at any time or even disable for any reason , and yes there are circumstances that can effect the way it operates the setpoint once set would not change in those events its just trying to maintain its target setpoint.
Arguing with your Boss is like wrestling with a pig in
After a while you realize that while you are getting
dirty, the pig is actually enjoying it.
It is not exactly cheating, I prefer to consider it
creative problem solving.
25 years ago we had Bob Hope , Steve Jobs , and Johnny Cash today we have no Hope no Jobs and no Cash !
I can fix broke but i can't fix stupid !