Parameters 303
97.09 Switching freq
mode
An optimization setting for balancing between control
performance and motor noise level.
Notes:
• This is an expert level parameter and should not be
adjusted without appropriate skill.
• Other settings than Normal may require derating. Refer to
the rating data in the Hardware manual of the drive.
Normal
Normal Control performance optimized for long motor cables. 0
Low noise Minimizes motor noise. 1
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%
97.13 IR compensation Defines the relative output voltage boost at zero speed (IR
compensation). The function is useful in applications with a
high break-away torque where direct torque control (Vector
mode) cannot be applied.
See also section IR compensation for scalar motor control on
page 51.
0.00%
0.00 … 50.00% Voltage boost at zero speed in percent of nominal motor
voltage.
1 = 1%
97.15 Motor model
temperature
adaptation
Selects whether the temperature-dependent parameters
(such as stator or rotor resistance) of the motor model adapt
to actual (measured or estimated) temperature or not.
See parameter group 35 Motor thermal protection for
selection of temperature measurement sources.
Disabled
Disabled Temperature adaptation of motor model disabled. 0
Estimated
temperature
Estimated temperature (35.01 Motor estimated temperature)
used for adaptation of motor model.
1
No. Name/Value Description Def/FbEq16
U / U
N
(%)
f (Hz)
Field weakening point
Relative output voltage. No
IR compensation.
Relative output voltage with IR
compensation
100%
50% of nominal frequency
97.13
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