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 1 of the settings in
parameter group 1-2* Motor Data
is
changed,
parameter 1-30 Stator Resistance (Rs)
to
return to the default setting.
This parameter cannot be adjusted while the motor is
running.
NOTICE
Full AMA should be run without filter only, while reduced
AMA should be run with filter.
See the
chapter Automatic Motor Adaptation
in the
VLT
®
AQUA Drive FC 202 Design Guide
.
3.3.8 1-3* Adv. Motor Data
Parameters for advanced motor data. The motor data in
parameter 1-30 Stator Resistance (Rs)
to
must match the relevant motor
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 advanced motor data is not known,
running an AMA is recommended. See the
chapter
Automatic Motor Adaptation
in the
VLT
®
AQUA Drive FC 202
Design Guide
. The AMA sequence adjusts all motor
parameters except the inertia moment of the rotor and the
iron loss resistance (
parameter 1-36 Iron Loss Resistance
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
1-30 Stator Resistance (Rs)
Range:
Function:
Size
related
*
[ 0.0140 -
140.0000
Ohm]
NOTICE
This parameter cannot be
adjusted while the motor is
running.
For PM motors, see the description in
parameter 1-37 d-axis Inductance (Ld)
.
Set the stator resistance value. Enter
the value from a motor datasheet or
perform an AMA on a cold motor.
1-31 Rotor Resistance (Rr)
Range:
Function:
1.0000
Ohm
*
[0.0100 -
100.0000
Ohm]
NOTICE
Parameter 1-31 Rotor Resistance (Rr)
has no effect when
parameter 1-10 Motor Construction
is
set to
[1] PM, non-salient SPM
,
[5]
Sync. Reluctance
.
Set the rotor resistance value R
r
to improve
shaft performance using 1 of these
methods:
•
Run an AMA on a cold motor. The
frequency converter measures the
Parameter Description
Programming Guide
MG20OB02
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49
3
3
Summary of Contents for VLT AQUA Drive FC 202
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