Danfoss VLT AutomationDrive FC 301 Programming Guide

the current measurement. Below f
norm
x 0.1, the drive runs on a variable current model. Above f
norm
x 0.125 the drive runs on a flux
model.
P 1-53
e30ba147.11
x 0.1
Variable
current
model
Flux model 2
f
out
f
N,M
f
N,M
x 0.125
Illustration 35: Parameter 1-00 Configuration Mode = [0] Speed open loop, parameter 1-01 Motor Control Principle = [2] Flux sensorless
Parameter 1-54 Voltage Reduction in Fieldweakening
Table 105: Parameter 1-54 Voltage reduction in fieldweakening
1-54 Voltage reduction in fieldweakening
Default value: 0 V
Parameter type: Range, -50 - 100 V
Setup: All setups
Conversion index: 0
Data type: Int8
Change during operation: True
The value of this parameter reduces the maximum voltage available for the flux of the motor in field weakening, providing more
voltage for torque. Increasing the value increases the risk of stalling at high speed. When reducing the voltage below 0, the output
voltage is increased and at some point the current controller is forced into "Voltage Limit".
Parameter 1-55 U/f Characteristic - U
Table 106: Parameter 1-55 U/f Characteristic - U
1-55 U/f Characteristic - U
Default value: Size related
Parameter type: Range, 0 - 1000 V, Array [6]
Setup: All setups
Conversion index: -1
Data type: Uint16
Change during operation: True
Enter the voltage at each frequency point to manually form a U/f characteristic matching the motor. The frequency points are de-
fined in parameter 1-56 U/f Characteristic - F. This parameter is an array parameter [0-5] and is only accessible when parameter 1-01
Motor Control Principle is set to [0] U/f.
Parameter 1-56 U/f Characteristic - F
Table 107: Parameter 1-56 U/f Characteristic - F
1-56 U/f Characteristic - F
Default value: Size related
Parameter type: Range, 0 - 1000.0 V, Array [6]
Setup: All setups
Conversion index: -1
Data type: Uint16
Change during operation: True
Enter the frequency points to form a U/f characteristic manually matching the motor. The voltage at each point is defined in param-
eter 1-55 U/f Characteristic - U. This parameter is an array parameter [0–5] and is only accessible when parameter 1-01 Motor Control
Principle is set to [0] U/f.
AU275636650261en-000101 / 130R033490 | Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide

Danfoss VLT AutomationDrive FC 301 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 301
Category	DC Drives
Language	English