
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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