Simplicity on the Worksite Solutions Guide for FAQs: E5CC/E5EC Using PID Control Reference Information: PID Control Problems with 100% Autotuning (AT-2) If autotuning at 100% (AT-2) does not produce the desired results, you can also execute autotuning at 40% (AT-1). ● Autotuning at 40% (AT-1) A 40% variation in the manipulated variable of the limit cycle is used for autotuning. Executing 40% autotuning may require more time than executing 100% autotuning (AT-2). The limit cycle timing varies according to whether the deviation (DV) at the start of autotuning execution is less than 10% FS. Deviation ≥ 10% FS Deviation PV PV Limit Cycle MV Amplitude: 40% Limit Cycle MV Amplitude:
40% SP SP Using PID Control Deviation: 10% FS Deviation: 10% FS AT started. AT ended. Time AT started. AT ended. Time 3-6 Simplicity on the Worksite Solutions Guide for FAQs: E5CC/E5EC