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Parameters 431
Rotor 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.
100%
25…400%
Rotor time constant tuning.
1 = 1%
IR compensation (ie. output voltage boost) can be used in
step-up applications to compensate for resistive losses in the
step-up transformer, cabling and motor. As voltage cannot be
fed through a step-up transformer at 0 Hz, a specific type of IR
compensation should be used.
This parameter adds a frequency breakpoint for parameter
as shown below.
0.0 Hz = Breakpoint disabled.
Note:
This parameter cannot be changed while the drive is
running.
0.0 Hz
0.0 … 50.0 Hz
IR compensation breakpoint for step-up applications.
1 = 1 Hz
No.
Name/Value
Description
Def
/
FbEq16
U
/
U
N
(%)
f
(Hz)
Field weakening
point
Relative output voltage with IR
compensation
100%
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 ...