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Program features 47
The figure below is a simplified block diagram of the speed controller. The controller
output is the reference for the torque controller.
Warning indications
A warning message,
, will be generated if the
autotune routine does not complete successfully. See chapter
(page
) for further information.
Settings
Parameters
(page
).
Oscillation damping
The oscillation damping function can be used to cancel out oscillations caused by
mechanics or an oscillating DC voltage. The input – a signal reflecting the oscillation
– is selected by parameter
Oscillation compensation input
. The oscillation
damping function outputs a sine wave (
) which can
be summed with the torque reference with a suitable gain (
) and phase shift (
The oscillation damping algorithm can be activated without connecting the output to
the reference chain, which makes it possible to compare the input and output of the
function and make further adjustments before applying the result.
Derivative
Proportional,
integral
Derivative
acceleration
compensation
Torque
reference
Speed
reference
Actual speed
Error
value
-
+
+
+
+
Содержание ACS880-x04
Страница 1: ... ABB INDUSTRIAL DRIVES ACS880 primary control program Firmware manual ...
Страница 4: ......
Страница 18: ...18 Using the control panel ...
Страница 24: ...24 Control locations and operating modes ...
Страница 111: ...Application macros 111 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 112: ...112 Application macros ...
Страница 496: ...496 Additional parameter data ...
Страница 544: ...544 Fault tracing ...
Страница 602: ...602 Control chain diagrams ...