Integral windup
Error condition in a proportional–integral–derivative controller / From Wikipedia, the free encyclopedia
Integral windup, also known as integrator windup[1] or reset windup,[2] refers to the situation in a PID controller where a large change in setpoint occurs (say a positive change) and the integral term accumulates a significant error during the rise (windup), thus overshooting and continuing to increase as this accumulated error is unwound (offset by errors in the other direction).