•
•
•
•
•
•
Run an AMA on a cold motor. The drive measures the value from the motor.
Enter the X
2
value manually. Obtain the value from the motor supplier.
Use the X
2
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
.
Parameter 1-35 Main Reactance (Xh)
Table 89: Parameter 1-35 Main Reactance (X2)
1-35 Main Reactance (X2)
Default value: Size related
Parameter type: Range, 1.0000 - 10000.0000 Ohm]
Setup: All setups
Conversion index: -4
Data type: Uint32
Change during operation: False
Set the main 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
h
value manually. Obtain the value from the motor supplier.
Use the X
h
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
.
Parameter 1-36 Iron Loss Resistance (Rfe)
Table 90: Parameter 1-36 Iron Loss Resistance (Rfe)
1-36 Iron Loss Resistance (Rfe)
Default value: Size related
Parameter type: Range, 0 - 10000.000 Ohm]
Setup: All setups
Conversion index: -3
Data type: Uint32
Change during operation: False
Enter the equivalent iron loss resistance (R
Fe
) value to compensate for iron loss in the motor. The R
Fe
value cannot be found by
performing an AMA. The R
Fe
value is especially important in torque control applications. If R
Fe
is unknown, leave
parameter 1-36 Iron
Loss Resistance (Rfe)
on default setting.
Parameter 1-37 d-axis Inductance (Ld)
Table 91: Parameter 1-37 d-axis Inductance (Ld)
1-37 d-axis Inductance (Ld)
Default value: 0.0 mH
Parameter type: Range, 0.0 - 1000.0 mH]
Setup: All setups
Conversion index: -4
Data type: Uint32
Change during operation: False
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
param-
eter 30-80 daxis Inductance (Ld)
.
AU373327181955en-000101 / 130R1208
72 | Danfoss A/S © 2021.08
Parameter Descriptions
VLT® AutomationDrive EZ FC 321
Programming Guide
