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Parameters 239
Maximum torque reference for speed controller adaptation.
Speed controller gain can be adapted according to the final
unlimited torque reference (
).
This can be used to smooth out disturbances caused by a
small load and backlashes.
The functionality involves multiplying the gain (
) by a coefficient within a certain torque
range.
When the torque reference is 0%, the gain is multiplied by the
value of parameter
.
When the torque reference is equal to or above
, no adaptation takes place (the coefficient is
1).
Between 0% and
, the coefficient
for the gain is calculated linearly on the basis of the
breakpoints.
Filtering can be applied on the torque reference using
parameter
.
See also the block diagram on page
.
0.0%
0.0 … 1600.0%
Maximum torque reference for speed controller adaptation.
See par.
Defines a filter time constant for the adaptation, in effect
adjusting the rate of change of the gain.
See parameter
.
0.000 s
0.000 … 100.000 s
Filter time for adaptation.
100 = 1 s
Proportional gain coefficient at 0% torque reference.
See parameter
.
1.000
0.000 … 10.000
Proportional gain coefficient at 0% torque reference.
1000 = 1
No.
Name/Value
Description
Def
/
FbEq16
Coefficient for K
p
(proportional gain)
Final torque reference
) (rpm)
1.000
0
Summary of Contents for ACS880-x04
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 primary control program Firmware manual ...
Page 4: ......
Page 18: ...18 Using the control panel ...
Page 24: ...24 Control locations and operating modes ...
Page 112: ...112 Application macros ...
Page 496: ...496 Additional parameter data ...
Page 544: ...544 Fault tracing ...
Page 602: ...602 Control chain diagrams ...