Rate or derivative mode is best described as:
A) describes how one control loop overrides the instruction of another.
B) reduces the difference between setpoint and process variable by adjusting the controller output continuously until the offset is eliminated.
C) the difference between the upper and lower range limits.
D) enhances controller output by increasing the output in relationship to the changing process variable.

Question

Quizplus · Accepted Answer

Rate or derivative mode in control systems enhances the controller's output in relation to how quickly the process variable is changing. This mode anticipates future changes in the process variable by considering its rate of change, thereby improving the system's responsiveness to disturbances.

Rate or Derivative Mode Is Best Described As