Parameters 431
97.11 TR tuning 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%
97.12 IR comp step-up
frequency
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
97.13 IR compensation 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%
97.13
97.12
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