Danfoss VLT FC 102 Programming Manual page 58

Parameter Descriptions
Par. 1-30
I
q
R
s
3 3
U
d
d-axis equivalent circuit
Par. 1-30
I
q
R
s
U
q
q-axis equivalent circuit
Illustration 3.5 Motor Equivalent Circuit Diagram for a PM
Non-salient Motor
1-30 Stator Resistance (Rs)
Range:
Size
related 140.0000
*
Ohm]
1-31 Rotor Resistance (Rr)
Range:
Size
related 100.0000
*
Ohm]
56
ω L I
Par. 1-37
s q
L
d
+
Par. 1-37 ω L I
s d
L =L
q d
+
Function:
NOTICE
[ 0.0140 -
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.
Function:
[ 0.0100 - Fine-tuning R improves shaft
r
performance. Set the rotor
resistance value using 1 of these
methods:
•
Run an AMA on a cold
motor. The frequency
converter measures the
value from the motor. All
compensations are reset
to 100%.
•
Enter the R
manually. Obtain the value
from the motor supplier.
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®
VLT HVAC Drive FC 102
1-31 Rotor Resistance (Rr)
q
Range:
-
1-35 Main Reactance (Xh)
Range:
Size
d
-
related
*
+
Par. 1-40
ω λ
s PM
-
1-36 Iron Loss Resistance (Rfe)
Range:
Size
related
*
value
r
Function:
•
Use the R
The frequency converter
establishes the setting on
the basis of the motor
nameplate data.
Function:
NOTICE
[ 1.0000 -
10000.0000
This parameter cannot be
Ohm]
adjusted while running.
NOTICE
Parameter 1-35 Main Reactance
(Xh) does not have effect when
parameter 1-10 Motor
Construction=[1] PM, non-
salient SPM.
Set the main reactance of the
motor using 1 of these methods:
•
Run an AMA on a cold
motor. The frequency
converter measures the
value from the motor.
•
Enter the X
manually. Obtain the value
from the motor supplier.
•
Use the X
The frequency converter
establishes the setting on
the basis of the motor
nameplate data.
Function:
NOTICE
[ 0 -
10000.000
This parameter cannot be
Ohm]
adjusted while the motor is
running.
Enter the equivalent iron loss
resistance (R ) value to compensate
Fe
for iron losses in the motor.
The R value cannot be found by
Fe
performing an AMA.
The R value is especially important
Fe
in torque control applications. If R
is unknown, leave
parameter 1-36 Iron Loss Resistance
(Rfe) on default setting.
default setting.
r
value
h
default setting.
h
Fe
M0010001