ABB RCNA-01 Manual de usuario Pagina 229

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Parameter listing and descriptions 225
ACH550-01 User's Manual
Group 23: SPEED CONTROL
This group defines variables used for speed control operation.
Code Description Range
2301 PROP GAIN 0.00…200.0
Sets the relative gain for the speed controller.
Larger values may cause speed oscillation.
The figure shows the speed controller output after an error step (error
remains constant).
Note: You can use parameter 2305
AUTOTUNE RUN to automatically set
the proportional gain.
K
p
= Gain = 1
T
I
= Integration time = 0
T
D
= Derivation time = 0
Controller
Error value
Controller output
%
e = Error value
output =
K
p
· e
t
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