Danfoss VLT AHF 005 Programming Guide

1-29 Automatic Motor Adaptation (AMA)
Option: Function:
NOTICE
This parameter cannot be adjusted
while the motor is running.
The AMA function optimises dynamic motor
performance by automatically optimising the
advanced motor parameters (1-30 Stator
Resistance (Rs) to 1-35 Main Reactance (Xh)) at
motor standstill.
[0] * O No function.
[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 system only. Select this
option if an LC lter is used between the
frequency converter and the motor.
Activate the AMA function by pressing [Hand On] after
selecting [1] Enable complete AMA or [2] Enable reduced
AMA. See also the section Automatic Motor Adaptation in
the design guide. After a normal sequence, the display
reads: Press [OK] to
nish AMA. After pressing [OK], the
frequency converter is ready for operation.
NOTICE
•
For the best adaptation of the frequency
converter, run AMA on a cold motor.
•
AMA cannot be performed while the motor is
running.
NOTICE
Avoid generating external torque during AMA.
NOTICE
If one of the settings in parameter group 1-2* Motor
Data is changed, parameter 1-30 Stator Resistance (Rs) to
parameter 1-39 Motor Poles return to default settings.
NOTICE
Only run complete AMA without lter, and only run
reduced AMA with lter.
See section: Application Examples > Automatic Motor
Adaptation in the design guide.
3.3.6
1-3* Adv. Motor Data
Parameters for advanced motor data. The motor data in
parameter 1-30 Stator Resistance (Rs) to
parameter 1-39 Motor Poles must match the relevant motor
to run the motor optimally. The default settings are gures
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 adjusts all motor parameters except the moment
of inertia of the rotor and the iron loss resistance
(parameter 1-36 Iron Loss Resistance (Rfe)).
130BA375.11
R
S
P 1-30
R
1s
X
h
P1-35
R
1
X
2
X
1
U
1
I
1
Illustration 3.4 Motor Equivalent Diagram for an
Asynchronous Motor
I
R
s
Par. 1-30
L
d
Par. 1-37
ω
s
L
q
I
q
U
d
I
R
s
Par. 1-30
L
q
=L
d
Par. 1-37
ω
s
L
d
I
d
+
-
+ -
+ -
Par. 1-40
ω
s
λ
PM
U
q
q
q
d-axis equivalent circuit
q-axis equivalent circuit
130BC056.11
Illustration 3.5 Motor Equivalent Circuit Diagram for a PM
Non-salient Motor
Parameter Descriptions
VLT
®
HVAC Drive FC 102
42 Danfoss A/S © 03/2015 All rights reserved. MG11CE02
33

Danfoss VLT AHF 005 Specifications

General

Brand	Danfoss
Model	VLT AHF 005
Category	DC Drives
Language	English