ABB ACH550-01 User Manual page 236

ACH550-01 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
the 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
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%
Error value
Controller output
Range
0.00...200.0
to automatically set
AUTOTUNE RUN
e = Error value
t
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