PID

Making specific adjustments requires experience. In my opinion, depending on the specific function of this control instrument, the approach to control also varies; generally, proportional control is adjusted first, followed by integral control, and then differential control – the latter is usually adjusted very little. During the adjustment process, experience values are set first, and then adjustments are made based on the actual values and the fluctuations from those set values.

There are many posts on PID adjustment in the forum section; just search for it

When you spend a long time reading, let me use an analogy: Suppose someone falls ill, and the instruments show that there are \"deviations\" in the technical parameters. In that case, surgery is necessary immediately. A minor incision represents a less intense form of intervention; as for a major incision, it works quickly and yields immediate results, but it leaves behind side effects in the form of \"scars\". I: Take traditional Chinese medicine or supplements to make gradual adjustments; taking more of them will result in a stronger effect from I, but excessive use is also not advisable. D: Administering a stimulant – at first the dosage was high, and it seemed to work well, but in the end it didn’t help; it didn’t address the root cause of the problem. Patients are treated based on different conditions/emergency levels/age/gender (=different technical requirements), and a combination of three parameters is used to find the optimal setup and the appropriate intensity. . . :lol

There is no universal standard for adjusting PID parameters; different operating conditions and different technicians will set different values. Proper parameter settings ensure the stable and reliable operation of the control system, which depends on the technician’s understanding of the control system or their familiarity with the operating conditions. The typical setting is to use proportionality first, followed by integration, and then differentiation. However, differentiation acts based on the rate of change of the deviation; the faster the change, the greater the output, which can easily lead to system oscillations. Therefore, this parameter is generally left unchanged when setting the values. When the proportions set for proportionality and integration are similar, differentiation can be introduced appropriately to observe the changes in the output.