AX5000 Tuning-Guide - Version 1.0

Reducing Kp

Based on the rules of Ziegler and Nichols, the correct value for Kp should be determined using the following formula.

Kp = 0.45 x Kpcrit

In the example,

Kp = 0.45 x 0.22 = 0.10 or
Kp = 0.45 x 0.25 = 0.11

is the correct value.