Burkert Type 8623 - Manual (Page 36)

34 - 8623-2 Standard
english
From K
crit
and T
crit
, the controller parameters can then be calculated using the
following table.
Parameter setting according to Ziegler and Nichols:
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 distrubance behaviour and not for those with command behaviour.
controller type parameter setting
P K
p
= 0,5 K
crit
-
PI K
p
= 0,45 K
crit
T
N
= 0,85 T
crit