Danfoss VLT AutomationDrive FC 301 Programming Manual page 174

Parameter Descriptions
14-37 Fieldweakening Speed
Range:
Size
related 60000 RPM]
*
3 3
3.14.5 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:
66 % [40 -
90 %]
*
14-41 AEO Minimum Magnetisation
Range:
Size [ 40 -
related 200 %]
*
14-42 Minimum AEO Frequency
Range:
Size
related Hz]
*
172
Function:
NOTICE
[10 -
This parameter is valid for FC 302
only.
Enter the start speed for option [1]
[1/x] in parameter 14-36 Field-
weakening Function.
Function:
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.
Function:
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.
Function:
NOTICE
[5 - 40
This parameter is not active when
parameter 1-10 Motor Construction is
set to [1] PM non-salient SPM.
Danfoss A/S © 01/2018 All rights reserved.
®
VLT AutomationDrive FC 301/302
14-42 Minimum AEO Frequency
Range:
14-43 Motor Cosphi
Range:
0.66
N/A
*
3.14.6 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:
[0]
[1]
*
14-51 DC-Link Compensation
Option: Function:
[0] Off Disables DC-link compensation.
[1] On
Function:
Enter the minimum frequency at which
the automatic energy optimization (AEO)
is to be active.
Function:
[0.40 - The Cos(phi) setpoint is automatically set
0.95 N/A] 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.
Function:
Off
On
The rectified AC-DC voltage in the frequency converter's
DC link is associated with voltage ripples. These ripples
can increase in magnitude with increased load. These
ripples are undesirable because they can generate
current and torque ripples. A compensation method is
used to reduce these voltage ripples in the DC link. In
general, DC-link compensation is recommended for
most applications, but pay attention when operating in
field weakening as it can generate speed oscillations at
the motor shaft. In field weakening, turn off DC-link
compensation.
Enables DC-link compensation.
MG33MO02