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N O T I C E
For salient PM motors: AMA is not available. If only line-line data is available, divide the line-line value by 2 to achieve the line-to-
common (star point) value. Alternatively, measure the value with an ohmmeter. This also takes the resistance of the cable into
account. Divide the measured value by 2 and enter the result.
N O T I C E
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
.
Parameter 1-31 Rotor Resistance (Rr)
Table 85: Parameter 1-31 Rotor Resistance (Rr)
1-31 Rotor Resistance (Rr)
Default value: Size related
Parameter type: Range, 0.0100 - 100.0000 Ohm
Setup: All setups
Conversion index: -4
Data type: Uint32
Change during operation: False
N O T I C E
Parameter 1-31 Rotor Resistance (Rr)
has no effect when
parameter 1-10 Motor Construction
is set to
[1] PM, non-salient SPM
,
[5]
SynRM
.
Set the rotor resistance value R
r
to improve shaft performance using 1 of these methods:
Run an AMA on a cold motor. The drive measures the value from the motor. All compensations are reset to 100%.
Enter the R
r
value manually. Obtain the value from the motor supplier.
Use the R
r
default setting. The drive establishes the setting based on the motor nameplate data.
Parameter 1-33 Stator Leakage Reactance (X1)
Table 86: Parameter 1-33 Stator Leakage Reactance (X1)
1-33 Stator Leakage Reactance (X1)
Default value: Size related
Parameter type: Range, 0.0400 - 400.0000 Ohm
Setup: All setups
Conversion index: -4
Data type: Uint32
Change during operation: False
N O T I C E
This parameter is only relevant for asynchronous motors.
Set the stator leakage reactance of the motor using 1 of these methods:
Run an AMA on a cold motor. The drive measures the value from the motor.
Enter the X
1
value manually. Obtain the value from the motor supplier.
Use the X
1
default setting. The drive establishes the setting based on the motor nameplate data.
N O T I C E
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
.
AU275636650261en-000101 / 130R0334
82 | Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide