1-39 Motor Poles
Range:
Function:
Application
dependent
*
[2 - 100 ] Enter the number of motor
poles.
Poles ~n
n
@ 50Hz
~n
n
@60Hz
2
2700 - 2880
3250 - 3460
4
1350 - 1450
1625 - 1730
6
700 - 960
840 - 1153
The table shows the number of poles for normal speed
ranges of various motor types. Define motors designed for
other frequencies separately. The motor pole value is always
an even number, because it refers to the total number of
poles, not pairs of poles. The frequency converter creates the
initial setting of
based on
and
1-40 Back EMF at 1000 RPM
Range:
Function:
Application
dependent
*
[Application
dependant]
Set the nominal back EMF for the
motor when running at 1000
RPM. This parameter is only active
when
is
set to
PM motor
[1] (Permanent
Magnet Motor).
FC 302 only.
NOTE
When using PM motors, it is
recommended to use brake
resistors.
1-41 Motor Angle Offset
Range:
Function:
0
*
[-32768 -
32767 ]
Enter the correct offset angle between the PM
motor and the index position (single-turn) of the
attached encoder or resolver. The value range of 0
- 32768 corresponds to 0 - 2 * pi (radians). To
obtain the offset angle value: After frequency
converter start-up apply DC-hold and enter the
value of
into this parameter.
This parameter is only active when
is set to
PM, non-salient SPM
[1]
(Permanent Magnet Motor).
3.3.5 1-5* Load Indep. Setting
1-50 Motor Magnetisation at Zero Speed
Range:
Function:
100
%
*
[0 -
300
%]
Use this parameter along with
to obtain a different
thermal 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.
M ag n. cur r en t
130BA045.11
Hz
P ar .1-50
P ar .1-51
100%
P ar .1-52
R PM
1-51 Min Speed Normal Magnetising [RPM]
Range:
Function:
Size
related
*
[10 - 300
RPM]
Set the required speed for normal
magnetising current. If the speed is set
lower than the motor slip speed,
1-50 Motor Magnetisation at Zero Speed
and
1-51 Min Speed Normal Magnetising
are of no significance.
Use this parameter along with
. See drawing
for
1-50 Motor Magnetisation at Zero
1-52 Min Speed Normal Magnetising [Hz]
Range:
Function:
Application
dependent
*
[Application
dependant]
Set the required frequency for
normal magnetising current. If
the frequency is set lower than
the motor slip frequency,
1-50 Motor Magnetisation at Zero
Speed
is inactive.
Use this parameter along with
1-50 Motor Magnetisation at Zero
Speed
. See drawing for
1-50 Motor Magnetisation at Zero
Speed
1-53 Model Shift Frequency
Range:
Function:
Application
dependent
*
[Application
dependant]
Flux Model shift
Enter the frequency value for shift
between two models for determining
motor speed. Choose the value
based on settings in
and
. There are two options: shift
Parameter Descriptions
FC 300 Programming Guide
38
MG.33.MB.02 - VLT
®
is a registered Danfoss trademark
3
3
