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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, the advanced motor parameters,
parameter 1-30 Stator Resistance (Rs)
to
, return to default setting.
If LC filter is used, set the frequency converter to run in U/f
control mode (recommended), or perform reduced AMA in
VVC
+
mode. If LC filter is not used, perform complete AMA.
1-30 Stator Resistance (Rs)
Range:
Function:
Size
related
*
[ 0.0 -
99.99 Ohm]
NOTICE
This parameter cannot be
adjusted while the motor is
running.
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:
Size
related
*
[ 0.010 -
100.000
Ohm]
Enter the rotor resistance value.
Obtain the value from a motor
datasheet or by performing an AMA
on a cold motor. The default setting is
calculated by the frequency converter
from the motor nameplate data.
1-33 Stator Leakage Reactance (X1)
Range:
Function:
Size
related
*
[ 0.0 -
999.9 Ohm]
Set the stator leakage reactance value.
Obtain the value from a motor
datasheet or perform an AMA on a
cold motor. The default setting is
calculated by the frequency converter
from the motor nameplate data.
1-35 Main Reactance (Xh)
Range:
Function:
Size
related
*
[ 0.0 -
999.9
Ohm]
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
h
value manually.
Obtain the value from the motor
supplier.
•
Use the X
h
default setting. The
frequency converter establishes
the setting based on the motor
nameplate data.
1-37 d-axis Inductance (Ld)
Range:
Function:
Size related
*
[ 0 - 1000
mH]
Enter the value of the d-axis
inductance. Obtain the value from
the permanent magnet motor
datasheet.
1-38 q-axis Inductance (Lq)
Range:
Function:
Size related
*
[ 0.000 -
1000 mH]
NOTICE
This parameter cannot be
adjusted while the motor is
running.
Set the value of the q-axis
inductance. Find the value in the
motor datasheet.
1-39 Motor Poles
Range:
Function:
Size
related
*
[2 -
100 ]
NOTICE
This parameter cannot be adjusted
while the motor is running.
Enter the number of motor poles.
The motor pole value is always an even
number, because it refers to the total pole
numbers, not pairs of poles.
1-40 Back EMF at 1000 RPM
Range:
Function:
Size
related
*
[0 -
9000 V]
Set the nominal back EMF for the motor
when running at 1000 RPM.
Back EMF is the voltage generated by a PM
motor when no frequency converter is
connected and the shaft is turned
externally. Back EMF is normally specified
for nominal motor speed or for 1000 RPM
Parameter Descriptions
VLT
®
Midi Drive FC 280
34
Danfoss A/S © 12/2015 All rights reserved.
MG07C102
4
4
Содержание VLT Midi Drive FC 280
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