1. A closed-loop control device for a process, comprising: a linear dynamic controller; a dead band element connected upstream of the linear dynamic controller to reduce actuating interventions during steady state control; and an open-loop control device configured to automatically deactivate the dead band element if a control deviation of a control loop exceeds a predefined or predefinable first threshold value, a control deviation passed via the dead band element being uninfluenced by a set dead band in a deactivated state, and configured to automatically reactivate the dead band element if the control deviation undershoots a predefined or predefinable second threshold value which is less than the first threshold value.