Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
Speed controller settings.Speed control25
See the control chain diagrams on pages 651 and 652.
- / real32Displays the speed controller output that is transferred
to the torque controller. See the control chain diagram
on page 652.
Torque reference
speed control
25.1
This parameter is read-only.
- / -Limited speed controller output torque. For scaling,
see parameter 46.3.
-1600.0 ... 1600.0 %
10.00; 5.00 (95.21
b1/b2) / real32
Defines the proportional gain (K
p
) of the speed
controller. Too high a gain may cause speed oscillation.
The figure below shows the speed controller output
after an error step when the error remains constant.
Speed proportional
gain
25.2
Gain = K
p
= 1
T
I
= Integration time = 0
T
D
= Derivation time = 0
Controller output
Controller
output = K
p
x e
e = Error value
Time
%
E
Error value
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 Speed
controller autotune (page 79).
100 = 1 / 100 = 1Proportional gain for speed controller.0.00 ... 250.00
Parameters 285
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