Danfoss VLT AutomationDrive FC 301 Programming Manual page 238

Parameter Descriptions
14-31 Current Lim Ctrl, Integration Time
Range:
Size
related
*
3 3
14-32 Current Lim Ctrl, Filter Time
Range:
Size
related
*
14-35 Stall Protection
Option:
[0] Disabled
[1] Enabled
*
14-36 Field-weakening Function
Select the field weakening function mode in flux mode.
Range:
0
*
1
236
Function:
[0.002 - 2 s] Controls the current limit control
integration time. Setting it to a
lower value makes it react faster. A
setting too low leads to controller
instability.
Function:
[1 - 100 ms] Controls the current limit control
low-pass filter.
This makes it possible to react to
peak values or to average values.
When selecting average values, it is
sometimes possible to run with
higher output current and instead
trip on the hardware limit for
current. However, the control reacts
slower as it does not react on
immediate values.
Function:
Parameter 14-35 Stall Protection is
active in flux mode only.
Disables stall protection in field
weakening flux mode and might
cause the motor to be lost.
Enables stall protection in field
weakening flux mode.
Function:
[Auto] In this mode, the frequency
converter calculates the optimal
torque output.
Measured DC-link voltage
determines the phase-to-phase
motor voltage. Magnetizing
reference is based on the actual
voltage and utilizes the information
about the model of the motor.
[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.
Danfoss A/S © 10/2019 All rights reserved.
®
VLT AutomationDrive FC 301/302
14-37 Fieldweakening Speed
Range:
Size
related
*
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:
66 %
*
14-41 AEO Minimum Magnetisation
Range:
Size
related
*
Function:
NOTICE
[10 - 60000
RPM]
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
[40 - 90 %]
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 magneti-
zation at low speed. Selection of a
low value reduces energy loss in
the motor but also reduces load
capability.
Function:
NOTICE
[ 30 - 200 %]
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.
M0013101