Danfoss VLT AutomationDrive FC 360 Programming Manual page 42

Parameter Descriptions
1-49 Current at Min Inductance for q-axis
Range:
100 % [ 20 -
200 %]
4 4
4.2.6 1-5* Load Indep. Setting
Parameters for load-independent motor settings.
1-50 Motor Magnetisation at Zero Speed
Range:
100 [0 -
% 300 %
*
]
1-52 Min Speed Normal Magnetising [Hz]
Range:
1 Hz [ 0.1 - 10.0
*
Hz]
1-55 U/f Characteristic - U
Range:
Size
related V]
*
40
Function:
This parameter specifies the saturation curve of
the q-inductance values. From 20–100% of this
parameter, the inductance is linearly
approximated due to parameter 1-38 q-axis
Inductance (Lq) and parameter 1-45 q-axis
Inductance Sat. (LqSat). These parameters are
related to the motor nameplate load compen-
sations, the application load type, and the
electronic brake function for quick stop/hold of
the motor.
Function:
Use this parameter along with parameter 1-52 Min
Speed Normal Magnetising [Hz] to obtain a
different thermal load on the motor when running
at low speed.
Enter a value that is a percentage of the rated
magnetizing current. If the setting is too low, the
torque on the motor shaft may be reduced.
Magn. current
90%
Par.1-50
Par.1-52
Illustration 4.2 Motor Magnetization
Function:
Set the required frequency for normal
magnetizing current. Use this parameter
along with parameter 1-50 Motor Magneti-
sation at Zero Speed, also see Illustration 4.2.
Function:
[0 - 1000 Enter voltage at each frequency point
to manually form a U/f characteristic
matching motor. Frequency points are
defined in parameter 1-56 U/f Charac-
teristic - F.
Danfoss A/S © 06/2017 All rights reserved.
®
VLT AutomationDrive FC 360
1-56 U/f Characteristic - F
Range:
Size
related
*
4.2.7 1-6* Load Depen. Setting
Parameters for adjusting the load-dependent motor
settings.
1-60 Low Speed Load Compensation
Range:
100 %
*
Hz
1-61 High Speed Load Compensation
Range:
100 %
*
1-62 Slip Compensation
Range:
Size
related
*
Function:
[ 0 - Enter frequency points to form a U/f charac-
500.0 teristic matching motor. Voltage at each point
Hz] is defined in parameter 1-55 U/f Characteristic
- U.
Make a U/f characteristic based on 6
definable voltages and frequencies, see
Illustration 4.3.
Motor Voltage
Par 1-55 [x]
1-55[5]
1-55[4]
1-55[3]
1-55[2]
1-55[1]
1-55[0]
1-56 1-56 1-56
[0] [1] [2]
Illustration 4.3 Example of U/f Charac-
teristic
Function:
[0 - Enter the low-speed voltage compensation
300 %] value in percent. This parameter is used for
optimizing the low-speed load performance.
This parameter is only active if
parameter 1-10 Motor Construction = [0]
Asynchron.
Function:
[0 - Enter the high-speed load voltage compen-
300 %] sation value in percent. This parameter is
used for optimizing the high-speed load
performance. This parameter is only active if
parameter 1-10 Motor Construction = [0]
Asynchron.
Function:
[ -400 - Enter the % value for slip compensation
400.0 %] to compensate for tolerance in the
value of n . Slip compensation is
M,N
calculated automatically, that is, based
on the nominal motor speed n
1-56
1-56 1-56
[5]
[3] [4]
Output Frequency
Par 1-56 [x]
.
M,N
MG06C702