Danfoss VLT AQUA Instruction Manual page 122

5 How to program the adjustable frequency
drive
1-29 Automatic Motor Adaptation (AMA)
Option:
[0] * Off
[1] Enable complete AMA
[2] Enable reduced AMA
Activate the AMA function by pressing [Hand on] after selecting [1] or [2]. See also the section
5
the display will read: "Press [OK] to finish AMA". After pressing the [OK] key, the adjustable frequency drive is ready for operation.
Note:
• For the best adaptation of the adjustable frequency drive, run AMA on a cold motor
• AMA cannot be performed while the motor is running.
NOTE!
It is important to set motor par. 1-2* Motor Data correctly, since these form part of the AMA algorithm. An AMA must be performed
to achieve optimum dynamic motor performance. It may take up to 10 min., depending on the motor power rating.
NOTE!
Avoid generating external torque during AMA
NOTE!
If one of the settings in par. 1-2* Motor Data is changed, par. 1-30
motor parameters, will return to the default setting.
This parameter cannot be adjusted while the motor is running.
NOTE!
Full AMA should be run without filter only while reduced AMA should be run with filter.
Automatic Motor Adaptation
See section
5-16
Function:
The AMA function optimizes dynamic motor performance by automatically optimizing the advanced
motor parameters par. 1-30
motor is stationary.
No function
performs AMA of the stator resistance R
the rotor leakage reactance X
performs a reduced AMA of the stator resistance R
filter is used between the adjustable frequency drive and the motor.
- application example.
MG.20.P3.22 - VLT
VLT AQUA High Power Instruction Manual
Stator Resistance (Rs) to par. 1-35
, the rotor resistance R
S
and the main reactance X .
2 h
in the system only. Select this option if an LC
s
Automatic Motor Adaptation
Stator Resistance (Rs) to par. 1-39
®
is a registered Danfoss trademark
Main Reactance (Xh) ) while the
, the stator leakage reactance X ,
r 1
. After a normal sequence,
Motor Poles , the advanced