Danfoss VLT Midi Drive FC 280 Programming Manual page 36

Parameter Descriptions
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
4 4
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
parameter 1-39 Motor Poles, 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:
Size
related 9999.000
*
Ohm]
1-31 Rotor Resistance (Rr)
Range:
Size [ 0 -
related 9999.000
*
Ohm]
1-33 Stator Leakage Reactance (X1)
Range:
Size
related 9999.000
*
Ohm]
34
Function:
NOTICE
[ 0.0 -
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.
Function:
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.
Function:
[ 0.0 - 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.
Danfoss A/S © 07/2016 All rights reserved.
®
VLT Midi Drive FC 280
1-35 Main Reactance (Xh)
Range:
Size
related
*
1-37 d-axis Inductance (Ld)
Range:
Size related
1-38 q-axis Inductance (Lq)
Range:
Size related
1-39 Motor Poles
Range:
Size
related
*
1-40 Back EMF at 1000 RPM
Range:
Size
related
*
Function:
[ 0.0 - Set the main reactance of the motor using
9999.00 1 of these methods:
•
Ohm] Run an AMA on a cold motor.
The frequency converter
measures the value from the
motor.
•
Enter the X
Obtain the value from the motor
supplier.
•
Use the X
h
frequency converter establishes
the setting based on the motor
nameplate data.
Function:
[ 0 - 1000 Enter the value of the d-axis
*
mH] inductance. Obtain the value from
the permanent magnet motor
datasheet.
Function:
NOTICE
[ 0.000 -
*
1000 mH]
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.
Function:
NOTICE
[2 -
100 ]
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.
Function:
[0 - Set the nominal back EMF for the motor
9000 V] 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
value manually.
h
default setting. The
MG07C302