![Danfoss VLT Midi Drive FC 280 Programming Manual Download Page 97](http://html.mh-extra.com/html/danfoss/vlt-midi-drive-fc-280/vlt-midi-drive-fc-280_programming-manual_506511097.webp)
14-31 Current Lim Ctrl, Integration Time
Range:
Function:
0.020 s
*
[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 control instability.
14-32 Current Lim Ctrl, Filter Time
Range:
Function:
5 ms
*
[1 - 100 ms] Sets a time constant for the current limit
controller low-pass filter.
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
options that enable PM motor mode.
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:
66 %
*
[40 -
75 %]
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.
14-44 d-axis current optimization for IPM
Range:
Function:
100
%
*
[0 -
200 %]
This parameter is available only when
parameter 1-10 Motor Construction
is set to
[2]
PM, salient IPM, non-Sat
.
Normally VVC
+
PM control automatically
optimizes d-axis demagnetizing current based on
d-axis and q-axis settings. When
parameter 1-10 Motor Construction
is set to
[2]
PM, salient IPM, non-Sat
, use this parameter to
compensate the saturation effect at high load.
Usually, decreasing this value improves the
efficiency. However, 0% means no optimization
and the d-axis current is 0 (not recommended).
14-51 DC-Link Voltage Compensation
Option:
Function:
[0]
Off
Disables DC-link compensation.
[1]
*
On
Enables DC-link compensation.
14-52 Fan Control
This feature is only available in frequency converters 11–75 kW.
Option:
Function:
[5]
*
Constant-on mode
[6]
Constant-off mode
[7]
On-when-Inverter-is-on-else-off Mode
[8]
Variable-speed mode
14-55 Output Filter
Option:
Function:
NOTICE
This parameter cannot be changed
while the motor is running.
Select the type of output filter connected.
[0]
*
No Filter
[1]
Sine-Wave Filter
14-61 Function at Inverter Overload
When the frequency converter issues a frequency converter
overload warning, select whether to continue and trip the
frequency converter, or derate the output current.
Option:
Function:
[0]
*
Trip
[1]
Derate
14-63 Min Switch Frequency
Option:
Function:
Set the minimum switch frequency allowed by
the output filter.
[2]
*
2.0 kHz
[3]
3.0 kHz
[4]
4.0 kHz
[5]
5.0 kHz
[6]
6.0 kHz
[7]
8.0 kHz
[8]
10.0 kHz
[9]
12.0 kHz
[10] 16.0 kHz
14-64 Dead Time Compensation Zero Current Level
Option:
Function:
[0]
*
Disabled If using a long motor cable, select this option to
minimize the motor torque ripple.
[1]
Enabled
Parameter Descriptions
Programming Guide
MG07C102
Danfoss A/S © 12/2015 All rights reserved.
95
4
4