Danfoss FC 300 Design Manual page 137

FC 300 Design Guide
1-4* LCP Keypad
1-40 Back EMF at 1000 RPM
Value:
10 - 9000 V
Function:
Set the nominal back EMF for the motor when
running at 1000 RPM. This parameter is only ac-
tive when par. 1-10 Motor Design is set toPM mo-
tor [1] (Permanent Magnet Motor).
This parameter is available for FC 302 only.
1-41 Motor Angle Offset
Value:
0 - 65535
Function:
Enter the correct offset angle between the PM mo-
tor and the index position (single-turn) of the at-
tached encoder or resolver. The value range of 0
– 65535 corresponds to 0 - 2 * pi (radians). To
obtain the offset angle value: After drive start-up
apply DC-hold and enter the value of par. 16-20
Motor Angle into this parameter.
This parameter is only active when par. 1-10 Mo-
tor Design is set to PM, non-salient SPM [1] (Per-
manent Magnet Motor).
1-5* Load Indep. Setting
Parameters for setting the load-independent mo-
tor settings.
1-50 Motor Magnetisation at Zero Speed
Value:
0 - 300 %
Function:
Use this par. along with par. 1-51 Min Speed Nor-
mal Magnetising [RPM] to obtain a different ther-
mal load on the motor when running at low
speed.
Enter a value which is a percentage of the rated
magnetizing current. If the setting is too low, the
torque on the motor shaft may be reduced.
factory setting
How to Programme
500V
100%
() display text []
MG.33.B7.02 - VLT is a registered Danfoss trademark
Min Speed Normal Magnetising
1-51
[RPM]
Value:
10 - 300 RPM
Function:
Set the required speed for normal magnetising
0
current. If the speed is set lower than the motor
slip speed, par. 1-50 Motor Magnetisation at Zero
Speed and par. 1-51 are of no significance.
Use this par. along with par. 1-50. See drawing for
par. 1-50.
Min Speed Normal Magnetising
1-52
[Hz]
Value:
0 - 250 Hz
Function:
Set the required frequency for normal magnetis-
ing current. If the frequency is set lower than the
motor slip frequency, par. 1-50 Motor Magnetisa-
tion at Zero Speed are inactive.
Use this par. along with par. 1-50. See drawing for
par. 1-50.
1-53 Model Shift Frequency
Value:
4.0 - 50.0 Hz
Function:
Flux Model shift
Enter the frequency value for shift between two
models for determining motor speed. Choose the
value based on settings in par. 1-00 Configuration
Mode and par. 1-01 Motor Control Principle. There
are two options: shift between Flux model 1 and
Flux model 2; or shift between Variable Current
mode and Flux model 2. This parameter is avail-
able for FC 302 only.
value for use in communication via serial communication port
15RPM
125 Hz
6.7Hz
137