Danfoss VLT AutomationDrive FC 301 Programming Manual page 464

VLT AutomationDrive FC 301/302
Programming Guide
Set this parameter to avoid overvoltage and overcurrent alarms occurring in the field-weakening area. Decrease the setting to re-
duce risk of overcurrent and overvoltage trips. Increase the setting if the stall protection is overprotecting and the torque is too low,
for example, due to wrong motor data.
This parameter is active when parameter 14-35 Stall Protection is set to [1] Enabled and parameter 14-36 Field-weakening Function is
set to [1] 1/x.
Parameter 14-35 Stall Protection
Table 727: Parameter 14-35 Stall Protection
14-35 Stall Protection
Default value: [1] Enabled
Conversion index: -
This parameter is active in flux mode only.
Option Name Description
[0] Disabled Disables stall protection in field weakening flux mode and might cause the motor to be lost.
[1]* Enabled Enables stall protection in field weakening flux mode.
Parameter 14-36 Field-weakening Function
Table 728: Parameter 14-36 Field-weakening Function
14-36 Field-weakening Function
Default value: [0] Auto
Conversion index: -
Select the field-weakening function mode in flux mode.
Option Option
Number Name
[0]* Auto
[1] 1/x
Parameter 14-37 Fieldweakening Speed
Table 729: Parameter 14-37 Fieldweakening Speed
14-37 Fieldweakening Speed
Default value: Size related
Conversion index: 67
Enter the start speed for option [1] [1/x] in parameter 14-36 Fieldweakening Function.
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N O T I C E
Parameter type: Option
Data type: Uint8
N O T I C E
Parameter type: Option
Data type: Uint8
Description
In this mode, the drive calculates the optimal torque output. Measured DC-link voltage determines
the phase-to-phase motor voltage. Magnetizing reference is based on the actual voltage and utilizes
the information about the model of the motor.
The drive reduces torque output. The drive sets the magnetizing reference inversely proportional to
the speed using a static curve that shows the relationship between DC-link voltage and the speed.
Parameter type: Range, 10 - 60000 RPM
Data type: Uint16
Parameter Descriptions
Setup: All setups
Change during operation: False
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: True
AU275636650261en-000101 / 130R0334