Danfoss VLT FC 300 Instruction Manual page 81

VLT ® Automation Drive FC 300
Instruction Manual High Power
1-29 Automatic Motor Adaptation (AMA)
Option:
*
[0]
[1]
[2]
Note:
•
•
•
Function:
The AMA function optimizes dynamic motor performance by au-
tomatically optimizing the advanced motor parameters (par.
1-30 to par. 1-35) during motor standstill.
Activate the AMA function by pressing [Hand on] after selecting
[1] or [2]. See also the section
ter a normal sequence, the display will read: "Press [OK] to
finish AMA". After pressing the [OK] key, the adjustable fre-
quency drive is ready for operation.
This parameter cannot be adjusted while the motor is running.
OFF
Enable complete AMA Performs AMA of the stator resistance R
R , the stator leakage reactance X
r
X and the main reactance X
2
used between the drive and the motor.
FC 301:
for the FC 301. Instead, the X
motor database. Par. 1-35
to obtain optimal start performance.
Enable reduced AMA Performs a reduced AMA of the stator resistance R
tem only.
For the best adaptation of the adjustable frequency drive, run the AMA on a cold motor.
AMA cannot be performed while the motor is running.
AMA cannot be performed on permanent magnet motors.
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 power rating of the motor.
NOTE
Avoid generating external torque during AMA.
NOTE
If one of the settings in par. 1-2* Motor Data is changed, par. 1-30 to 1-39, the
advanced motor parameters will return to default setting.
MG.33.U1.22 - VLT ® is a registered Danfoss trademark.
Automatic Motor Adaptation
, the rotor leakage reactance
1
. Select this option if an LC filter is
h
The complete AMA does not include X
value is determined from the
h
Main Reactance (X
4. How to Program
. Af-
, the rotor resistance
S
measurement
h
)
may be adjusted
h
in the sys-
s
81
4