ABB ACH550-01 User Manual page 237

ACH550 User's Manual
Group 23: SPEED CONTROL
This group defines variables used for speed control operation.
Code Description
2301 PROP GAIN
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
proportional gain.
K = Gain =1
p
T = Integration time = 0
I
T = Derivation time = 0
D
Controller
output =
K * e
p
Parameter listing and descriptions
%
Error value
Controller output
Range
0.00...200.0
to automatically set
AUTOTUNE RUN
e = Error value
t
225