Danfoss VLT FC 102 Programming Manual page 97

Programming Guide | VLT® HVAC Drive FC 102
Enter the equivalent iron loss resistance (R
performing an AMA. The R
Fe
Resistance (Rfe) on default setting.
1-37 d-axis Inductance (Ld)
Default value:
Size related
Setup: All setups
Data type: Uint32
Enter line-to-common direct axis inductance of the PM motor. Obtain the value from the permanent magnet motor datasheet. If only
line-line data is available, divide the line-line value by 2 to achieve the line-common (star point) value. Alternatively, measure the value
with an inductance meter. This also takes the inductance of the cable into account. Divide the measured value by 2 and enter the result.
This parameter is only active when parameter 1-10 Motor Construction is set to [1] PM, non-salient SPM (Permanent Magnet Motor)
or [5] Sync. Reluctance. For a selection with 1 decimal, use this parameter. For a selection with 3 decimals, use parameter 30-80 d-axis
Inductance (Ld).
The parameter value is updated after each torque calibration if option [3] 1st start with store or option [4] Every start with store is
selected in parameter 1-47 Torque Calibration.
1-38 q-axis Inductance (Lq)
Default value: Size related
Setup:
All setups
Data type: Int32
Set the value of the q-axis inductance. See the motor datasheet.
1-39 Motor Poles
Default value: Size related
Setup: All setups
Data type: Uint8
This parameter cannot be adjusted while the motor is running.
Enter the number of motor poles. The number of motor poles is always an even number as it refers to the total number of poles, not pairs
of poles.
1-40 Back EMF at 1000 RPM
Default value: Size related
Setup:
All setups
Data type: Uint16
© 2024.10
) value to compensate for iron loss in the motor. The R
Fe
value is especially important in torque control applications. If R
Fe
Parameter type:
Conversion index:
Change during operation:
NOTICE
Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
NOTICE
Parameter type:
Conversion index:
Conversion index:
Parameter Descriptions
value cannot be found by
Fe
is unknown, leave parameter 1-36 Iron Loss
Range, 0.001 - 1000.0 mH
-6
False
Range, 0.001 - 1000 mH
-6
False
Range, 2 - 255
0
False
Range, 1 - 9000 V
0
False
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