Danfoss FC 300 Series User Manual

1-55 U/f Characteristic - U
Range: Function:
Application
dependent
*
[0.0 -
1000.0 V]
Enter the voltage at each frequency
point to manually form a U/f charac-
teristic matching the motor.
The frequency points are defined in
1-56 U/f Characteristic - F.
This parameter is an array
parameter [0-5] and is only
accessible when 1-01 Motor Control
Principle is set to U/f [0].
1-56 U/f Characteristic - F
Range: Function:
Application
dependent
*
[Application
dependant]
Enter the frequency points to
manually form a U/f-charac-
teristic matching the motor.
The voltage at each point is
defined in 1-55 U/f Characteristic -
U.
This parameter is an array
parameter [0-5] and is only
accessible when 1-01 Motor
Control Principle is set to U/f [0].
1-58 Flystart Test Pulses Current
Range: Function:
30 % * [0 - 200
%]
Control the percentage of the magnetizing
current for the pulses used to detect the motor
direction. Reducing this value will reduce the
generated torque. 100% means nominal motor
current. The parameter is active when
1-73 Flying Start is enabled. This parameter is
only available in VVC
plus
.
1-59 Flystart Test Pulses Frequency
Range: Function:
200 % * [0 - 500
%]
Control the percentage of the frequency for
the pulses used to detect the motor direction.
Increasing this value will reduce the generated
torque. 100% means 2 times the slip
frequency. The parameter is active when
1-73 Flying Start is enabled. This parameter is
only available in VVC
plus
.
3.3.6 1-6* Load Depend. Setting
1-60 Low Speed Load Compensation
Range: Function:
100 % * [0 - 300
%]
Enter the % value to compensate voltage in
relation to load while the motor is running at
low speed, and obtain the optimum U/f
characteristic. The motor size determines the
frequency range within which this parameter
is active.
Motor size Change-over
0.3–10 hp [0.25–7.5 kW] < 10 Hz
1-61 High Speed Load Compensation
Range: Function:
100 % * [0 - 300
%]
Enter the % value to compensate voltage in
relation to load while the motor is running at
high speed, and obtain the optimum U/f
characteristic. The motor size determines the
frequency range within which this parameter
is active.
Motor size Change-over
0.3–10 hp [0.25–7.5 kW] > 10 Hz
Parameter Descriptions FC 300 Programming Guide
MG.33.MA.22 - VLT
®
is a registered Danfoss trademark 3-19
3
3

Danfoss FC 300 Series Specifications

General

Category	DC Drives
Enclosure	IP20
Communication Options	CANopen
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Input Voltage	380-500V AC