ABB ACS880 Firmware Manual page 230

230 Parameters
No. Name/Value
25.02 Speed proportional
gain
Controller
output = K × e
p
0.00 ...250.00
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Description
Defines the proportional gain (K
high a gain may cause speed oscillation. The figure below
shows the speed controller output after an error step when the
error remains constant.
%
Gain = K
T
T
Controller output
If gain is set to 1.00, a 10% error (reference - actual value) in
the motor synchronous speed produces a proportional term of
10%.
Note: This parameter is automatically set by the speed
controller autotune function. See section
autotune (page 44).
Proportional gain for speed controller.
) of the speed controller. Too
p
= 1
p
= Integration time = 0
I
= Derivation time = 0
D
Speed controller
Def/FbEq16
10.00;
5.00
(95.21 b1/b2)
E
e = Error value
Time
100 = 1