Danfoss VLT Decentral Drive FCD 302 Operating Manual page 73

VLT® Decentral Drive FCD 302
Operating Guide
Option
[62] Reset Counter A
[65] Reset Counter B
Table 31: Parameter 1-29 Automatic Motor Adaptation (AMA)
Option Function
This parameter cannot be adjusted while the motor is running.
The AMA function optimizes dynamic motor performance by automatically optimizing the advanced motor
parameters (parameter 1-30 Stator Resistance (Rs) to parameter 1-35 Main Reactance (Xh)) at motor standstill.
Activate the AMA function by pressing [Hand On] after selecting [1] Enable complete AMA or [2] Enable re-
duced AMA. After a normal sequence, the display reads Press [OK] to finish AMA. After pressing [OK], the drive is
ready for operation.
[0]* OFF
[1] Enable Performs AMA of the stator resistance R
complete
leakage reactance X
AMA
[2] Enable re- Performs a reduced AMA of the stator resistance R
duced
between the drive and the motor.
AMA
For the best adaptation of the drive, run AMA on a cold motor.
AMA cannot be performed while the motor is running.
AMA cannot be performed on permanent magnet motors.
It is important to set parameter group 1-* Motor Data correctly since these parameters form part of the AMA algorithm. An AMA
must be performed to achieve optimum dynamic motor performance. Depending on the power rating of the motor, it takes up to
10 minutes.
To avoid generating external torque during AMA, disconnect the motor shaft from the application.
If 1 of the settings in parameter group 1-2* Motor Data is changed, parameter 1-30 Stator Resistance (Rs) to parameter 1-39 Motor
Poles, the Advanced Motor parameters return to their default settings.
Danfoss A/S © | 2020.07
Function
N O T I C E
, the rotor resistance R
s
, and the main reactance X
2 h
N O T I C E
N O T I C E
N O T I C E
N O T I C E
N O T I C E
N O T I C E
, the stator leakage reactance X
r
.
in the system only. Select this option if an LC filter is used
s
AQ267036816112EN-000101 / 130R0208 | 73
Appendix
, the rotor
1