PID Loop Tuning Calculator

Calculate PID controller tuning parameters using Ziegler-Nichols method.

Gain at sustained oscillation (from step test).
Period of oscillation in seconds.
sec
Enter 1 for P, 2 for PI, 3 for PID control.

Results

Proportional Gain (Kp)-
Integral Time (Ti)-sec
Derivative Time (Td)-sec
References: ASHRAE Handbook - HVAC Applications, Chapter 47. PID control loop tuning using Ziegler-Nichols method.