too higP too luw too haot-ltoul ler lype [D0 View this as a full page PID Optimization Articles Starting PID Settings For Common Control Loops Initial Settings For Common Control Loops For Some ldeal and Series Controllers oop Type Valve type min/re 50to500005to0520to200no Linear or Modified Percentage Liquid Pressure 50 to 500 005 to 05 20 to 200 none Linear or Modified Percentage 01 to 05 Linear or Modified Percentage emperature 2t0TUU 02 5 1 to 20 Equal Percentage These settings are rough, assume proper control loop design, ideal or senes algorithm and do not apply to all controllers Use Expertune PID Tuner to find the proper PID settings for your process and controller Comparison of PID Control Algorithms (All Controllers Are Not Created equa Modified from an article published in Control Engineering March, 1987. This article updated and re-written for the Web One fine day, a plant engineer, replaced his controllers. Even though he used the same settings on the new controllers, the retrofitted loops went out of control in automatic. He tried to tune these controllers the same way he had tuned the old ones. The loops seemed to get more unstable This mysterious and very real situation is the result of two manuyfacturer's using different PID algorithms. Read on to solve this and other common mysteries abor PId controllersView this as a full page | PID Optimization Articles Starting PID Settings For Common Control Loops Comparison of PID Control Algorithms (All Controllers Are Not Created Equal) Modified from an article published in Control Engineering March, 1987. This article updated and re-written for the Web. One fine day, a plant engineer, replaced his controllers. Even though he used the same settings on the new controllers, the retrofitted loops went out of control in automatic. He tried to tune these controllers the same way he had tuned the old ones. The loops seemed to get more unstable. This mysterious and very real situation is the result of two manufacturer's using dif erent PID algorithms. Read on to solve this and other common mysteries about PID controllers