48 Program features
Tuning procedure for oscillation damping
Note:
Changing the speed error low-pass filter time constant or the integration time of
the speed controller can affect the tuning of the oscillation damping algorithm. It is
recommended to tune the speed controller before the oscillation damping algorithm.
(The speed controller gain can be adjusted after the tuning of this algorithm.)
Settings
(page
).
Resonance frequency elimination
The control program contains a notch filter function for removing the resonance
frequencies from the speed error signal.
Settings
(page
).
Rush control
In torque control, the motor could potentially rush if the load were suddenly lost. The
control program has a rush control function that decreases the torque reference
Oscillation compensation input
• Set
• Calculate the oscillation frequency from the signal (use the Drive
composer PC tool) and set
• Set
*
• Increase
gradually so that the
algorithm starts to take effect.
oscillation amplitude decreases
oscillation amplitude increases
• Increase
and adjust
if necessary
• Increase
to
suppress the oscillation totally.
*If the phasing of a DC oscillation cannot be
determined by measuring, the value of 0
degrees is usually a suitable initial 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 ...