Burkert 8625-2 Manuel D'utilisation page 32

From K and T
crit crit
following table.
Parameter setting according to Ziegler and Nichols:
Controller type
P
PI
The adjustment rules of Ziegler and Nichols have been determined for P members
with first order time increase and dead time. However, they apply only for
controllers with disturbance behaviour and not for those with command behaviour.
30 - 8625-2 Standard
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, the controller parameters can then be calculated using the
Parameter setting
K = 0,5 K
p krit
K = 0,45 K T
p krit N
-
= 0,85 T
krit