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[1]
Enable complete AMA performs AMA of the stator resistance R
S
, the rotor resistance
R
r
, the stator leakage reactance X
1
, the rotor leakage reactance
X
2
and the main reactance X
h
.
[2]
Enable reduced AMA performs a reduced AMA of the stator resistance R
s
in the sys-
tem only. Select this option if an LC filter is used between the
frequency converter and the motor.
Activate the AMA function by pressing [Hand on] after selecting [1] or [2]. See also the section
Automatic Motor Adaptation
. After a normal sequence, the display will read: "Press [OK] to finish
AMA". After pressing the [OK] key the frequency converter is ready for operation.
Note:
•
For the best adaptation of the frequency converter, run AMA on a cold motor.
•
AMA cannot be performed while the motor is spinning.
NB!
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.
NB!
Avoid generating external torque during AMA.
NB!
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.
This parameter cannot be adjusted while the motor is running.
See section
Automatic Motor Adaptation
- application example.
2.3.3. 1-3* Adv. Motor Data
Parameters for advanced motor data. The motor data in par. 1-30 - par. 1-39 must match the
relevant motor in order to run the motor optimally. The default settings are figures based on
common motor parameter values from normal standard motors. If the motor parameters are not
set correctly, a malfunction of the frequency converter system may occur. If the motor data is not
known, running an AMA (Automatic Motor Adaptation) is recommended. See the
Automatic Motor
Adaptation
section. The AMA sequence will adjust all motor parameters except the moment of
inertia of the rotor and the iron loss resistance (par. 1-36).
Parameters 1-3* and 1-4* cannot be adjusted while the motor is running.
2. Parameter Description
VLT
®
AQUA Drive Programming Guide
48
MG.20.O2.02 - VLT
®
is a registered Danfoss trademark
2