14-36 Field-weakening Function
Select the field weakening function mode in flux mode.
Range:
Function:
1 [1/x]
The frequency converter reduces torque output.
The frequency converter sets the magnetizing
reference inversely proportional to the speed using a
static curve that shows the relationship between DC-
link voltage and the speed.
14-37 Fieldweakening Speed
Range:
Function:
Size
related
*
[10 -
60000 RPM]
NOTICE
This parameter is valid for FC 302
only.
Enter the start speed for option
[1]
[1/x]
in
3.14.4 14-4* Energy Optimizing
Parameters for adjusting the energy optimization level in
both variable torque (VT) and automatic energy optimi-
zation (AEO) mode in
parameter 1-03 Torque Characteristics
.
14-40 VT Level
Range:
Function:
66 %
*
[40 -
90 %]
NOTICE
This parameter cannot be adjusted while
the motor is running.
NOTICE
This parameter is not active when
parameter 1-10 Motor Construction
is set to
[1] PM non-salient SPM
.
Enter the level of motor magnetization at low
speed. Selection of a low value reduces energy
loss in the motor but also reduces load
capability.
14-41 AEO Minimum Magnetisation
Range:
Function:
Size
related
*
[ 30 -
200 %]
NOTICE
This parameter is not active when
parameter 1-10 Motor Construction
is
set to
[1] PM non-salient SPM
.
Enter the minimum allowable magnetization
for AEO. Selection of a low value reduces
energy loss in the motor but can also
reduce resistance to sudden load changes.
14-42 Minimum AEO Frequency
Range:
Function:
Size
related
*
[0 - 40
Hz]
NOTICE
This parameter is not active when
parameter 1-10 Motor Construction
is
set to
[1] PM non-salient SPM
.
Enter the minimum frequency at which
the automatic energy optimization (AEO)
is to be active.
14-43 Motor Cosphi
Range:
Function:
Size
related
*
[0.40 -
0.95 ]
The Cos(phi) setpoint is automatically set
for optimum AEO performance. This
parameter should normally not be
altered. However, in some situations it
may be necessary to enter a new value
to fine-tune.
14-44 d-axis Reference Gain
Adjustment parameter for the d-axis current. 100% indicates
maximum torque per ampere value based on motor parameters.
Increasing the maximum torque can improve the power factor of
the machine which may increase the current consumption.
The adjustment parameter allows to:
Adjust minimum current consumption, allowing for tolerances in
the motor parameters.
Obtain the optimal balance between current consumption and
power factor of the machine at a given point of operation.
Range:
Function:
100 %
*
[0 - 200 %]
3.14.5 14-5* Environment
NOTICE
Perform a power cycle after changing any of the
parameters in
parameter group 14-5* Environment
.
These parameters help the frequency converter to operate
under special environmental conditions.
14-50 RFI Filter
Turn the RFI filter on or off. The RFI filter ensures that the
frequency converter complies with EMC standards. Select
[0] Off
only when the frequency converter is connected to an isolated
mains source (IT mains).
Option:
Function:
[0]
Off
[1]
*
On
Parameter Descriptions
Programming Guide
MG33MP02
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Summary of Contents for VLT AutomationDrive FC 302
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