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ABB ACS880 - Page 521

ABB ACS880
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Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
Disabled / uint16Enables signal injection. A high-frequency alternating signal
is injected into the motor at low speeds to improve the
stability of torque control. Signal injection can be enabled
with different amplitude levels.
Note: This is an expert level parameter and should not be
adjusted without appropriate skill.
Note: Use as low a level as possible that gives satisfactory
performance.
Note: Signal injection cannot be applied to asynchronous
motors.
Signal injection97.10
0Signal injection disabled.Disabled
1Signal injection enabled with an amplitude level of 5%.Enabled (5 %)
2Signal injection enabled with an amplitude level of 10%.Enabled (10 %)
3Signal injection enabled with an amplitude level of 15%.Enabled (15 %)
4Signal injection enabled with an amplitude level of 20%.Enabled (20 %)
100 % / real32Rotor time constant tuning.
This parameter can be used to improve torque accuracy
in closed-loop control of an induction motor. Normally, the
motor identification run provides sufficient torque accuracy,
but manual fine-tuning can be applied in exceptionally
demanding applications to achieve optimal performance.
Note: This is an expert level parameter and should not be
adjusted without appropriate skill.
TR tuning97.11
1 = 1 % / 100 = 1 %Rotor time constant tuning.25...400 %
Parameters 521

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