Automatic Motor Adaptation (Ama); Adv. Motor Data - Danfoss VLT Programming Manual

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VLT HVAC Drive Programming Guide

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 item
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 running
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 motor power rating.
NB!
Avoid generating external torque during AMA.
NB!
If one of the settings in par. 1-2* Motor Data is changed, par. 1-30
motor parameters, will return to default setting.
This parameter cannot be adjusted while the motor is running.
NB!
Full AMA should be run without filter only while reduced AMA should be run with filter.
Application Examples > Automatic Motor Adaptation
See section:

3.3.3 1-3* Adv. Motor Data

Parameters for advanced motor data. The motor data in par. 1-30
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
of inertia of the rotor and the iron loss resistance (par. 1-36
Parameter group 1-3* and parameter group 1-4* cannot be adjusted while the motor is running.
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 frequency converter and the motor.
in the Design Guide.
Stator Resistance (Rs)
Automatic Motor Adaptation
section. The AMA sequence will adjust all motor parameters except the moment
Iron Loss Resistance (Rfe)
MG.11.C9.02 - VLT ® is a registered Danfoss trademark
Stator Resistance (Rs)
to par. 1-35
, the rotor resistance R , the stator leakage reactance X
S r
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
Motor Poles
to par. 1-39 must match the relevant motor in order
).
3 Parameter Description
Main Reactance (Xh)
) while the
,
1
in the Design Guide. After a
Motor Poles
, the advanced
3
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