English – Burkert Type 8624 User Manual
Page 34
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32 - 8624-2 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 disturbance 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
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