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342 Parameters
97.10
Signal injection
Enables the anti-cogging function: a high-frequency
alternating signal is injected to the motor in the low speed
region to improve the stability of torque control. This
removes the “cogging” that can sometimes be seen as the
rotor passes the motor magnetic poles. Anti-cogging can
be enabled with different amplitude levels.
Notes:
• This is an expert level parameter and should not be
adjusted without appropriate skill.
• Use as low a level as possible that gives satisfactory
performance.
• Signal injection cannot be applied to asynchronous
motors.
Disabled
Disabled
Anti-cogging disabled.
0
Enabled (5%)
Anti-cogging enabled with amplitude level of 5%.
1
Enabled (10%)
Anti-cogging enabled with amplitude level of 10%.
2
Enabled (15%)
Anti-cogging enabled with amplitude level of 15%.
3
Enabled (20%)
Anti-cogging enabled with amplitude level of 20%.
4
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%
No.
Name/Value
Description
Default
FbEq 16
ACS380 FW.book Page 342 Friday, May 4, 2018 4:18 PM
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