By using a digital input set to
Coast inverse
[2] or
Coast
and reset inv.
[3], the motor does not use the ramp-down
time, since the Adjustable frequency drive is coasted. If a
quick stop is necessary, use the mechanical brake control
function along with an external electro-mechanical brake
attached to the application.
14-30 Current Lim Ctrl, Proportional Gain
Range:
Function:
100 %
*
[0 - 500 %] Enter the proportional gain value for the
current limit controller. Selection of a high
value makes the controller react faster. Too
high a setting leads to controller
instability.
14-31 Current Lim Ctrl, Integration Time
Range:
Function:
Size related
*
[0.002 -
2.000 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:
1.0 ms
*
[1.0 - 100.0 ms]
14-35 Stall Protection
Option:
Function:
Select Enable [1] to enable the stall protection in
field-weakening in flux mode. Select Disable [0] if
you desire to disable it. This might cause the
motor to be lost.
14-35 Stall Protection
is active in
flux mode only.
[0]
Disabled
[1]
*
Enabled
3.15.4 14-4* Energy Optimizing
Parameters for adjusting the energy optimization level in
both Variable Torque (VT) and Automatic Energy Optimi-
zation (AEO) mode in
1-03 Torque Characteristics
.
14-40 VT Level
Range:
Function:
66 %
*
[40 - 90 %]
NOTE!
This parameter cannot be adjusted while the motor is
running.
NOTE!
This parameter is not active when
1-10 Motor Construction
is
set to [1] PM non-salient SPM.
14-41 AEO Minimum Magnetisation
Range:
Function:
Size related
*
[40 - 75
%]
Enter the minimum allowable magnet-
ization for AEO. Selection of a low
value reduces energy loss in the
motor, but can also reduce resistance
to sudden load changes.
NOTE!
This parameter is not active when
1-10 Motor Construction
is
set to [1] PM non-salient SPM.
14-42 Minimum AEO Frequency
Range:
Function:
10 Hz
*
[5 - 40 Hz] Enter the minimum frequency at which the
Automatic Energy Optimization (AEO) is to
be active.
NOTE!
This parameter is not active when
1-10 Motor Construction
is
set to [1] PM non-salient SPM.
14-43 Motor Cosphi
Range:
Function:
Application
dependent
*
[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.
Application
dependent
*
[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.
Parameter Descriptions
FC 300 Programming Guide
3-132
MG33MD22 - VLT
®
is a registered Danfoss trademark
3
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