What is control loop?

Beside stability and quality of control it is often required at synthesis of multi-variable control loop that one control variable causes a change of only one corresponding (proper) controlled variable.Using a highly customizable touch screen HMI equipped with an integrated Servo (low rpm, AC, Brushless), a PID control loop is established to control the ICV feeding the meter.The time delay term is neglected in the control design because the control loop contains a model of the controlled system which was identified by the relay experiment.The presence of oscillations in a control loop increases the variability of the process variables thus causing inferior quality products, larger rejection rates, increased energy consumption and reduced average throughput.DeltaV InSight is an integrated application used to monitor, analyze, diagnose, and improve control loop performance.We are ready to demonstrate the aircraft's ability to close the fire control loop against a flying target.The EZ-Zone ST integrated control loop from Watlow combines temperature control, power control, safety shutdown, and power disconnect in a single package.If we consider the CAPM example above, a mill faced with the challenge of monitoring and sustaining the performance of 1, 000 control loops may find it every bit as difficult to act on the results of a CAPM program that computes several KPIs per control loop (and hence thousands of KPIs per day).Thickness is controlled by an additional control loop.This technician's guide defines loop checking in the broader scope of control loop performance and in more traditional terms of the plant start-up.ChevronTexaco has selected PAS's PlantState Suite alarm management and ControlWizard control loop performance management software for use in its global refineries.The innovation of the new system is in the placement of the offset synthesizer inside a servo control loop used to stabilize a high-Q microwave cavity.