ABB ACS180 - Page 180

180 Parameters
Enable Flux adaption enabled. 1
25.33 Speed controller
autotune
Activates (or selects a source that activates) the speed
controller auto tune function.
Off
Off, On Note: The parameter can be configured to use 'other'
source bit to enable the function.
25.34 Speed controller
autotune mode
Defines a control preset for the speed controller auto tune
function. The setting affects the way the torque reference
will respond to a speed reference step.
Normal
Smooth, Normal, Tight • Smooth: slow yet robust response.
• Normal: normal response.
• Tight: fast response which can produce high gain
value.
25.37 Mechanical time
constant
Mechanical time constant of the drive and the machinery
as determined by the speed controller autotune function.
The value can be adjusted manually.
-
0.00 … 1000.00 s Mechanical time constant. 10 = 1 s
25.38 Autotune torque step Defines an added torque value used by the auto tune
function. This value is scaled to the motor nominal torque.
Note: The torque used by the auto tune function can also
be limited by the torque limits (in parameter group 30
Limits) and the nominal motor torque.
10.00%
0.00 … 20.00 %
25.39 Autotune speed step Defines a speed value added to the initial speed for the
auto tune function. The initial speed (speed used when
auto tune is activated) plus the value of this parameter is
the calculated maximum speed used by the auto tune
routine. The maximum speed can also be limited by the
speed limits (in parameter group 30 Limits) and nominal
motor speed. The value is scaled to the motor nominal
speed.
Note: The motor will exceed the calculated maximum
speed slightly at the end of each acceleration stage.
10%
0.00 … 20.00 %
25.40 Autotune repeat times Determines how many acceleration/deceleration cycles
are performed during the auto tune routine. Increasing the
value will improve the accuracy of the auto tune function,
and allow the use of smaller torque or speed step values.
5
1…10
25.53 Torque prop reference Displays the output of the proportional (P) part of the
speed controller. See the control chain diagram on page
382.
This parameter is read-only.
-
-30000.0… 30000.0% P-part output of speed controller. See par.
46.03
25.54 Torque integral
reference
Displays the output of the integral (I) part of the speed
controller. See the control chain diagram on page 382.
This parameter is read-only.
-
-30000.0… 30000.0% I-part output of speed controller. See par.
46.03
No. Name/Value Description Default
FbEq 16
ACS180 FW.book Page 180 Tuesday, March 9, 2021 2:25 PM