Energy Optimizing; Current Lim Ctrl, Integration Time; Stall Protection; Motor Cosphi - Danfoss VLT AutomationDrive Programming Manual

Parameter Descriptions
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
3 3
function along with an external electro-mechanical brake
attached to the application.
14-30 Current Lim Ctrl, Proportional Gain
Range:
100 % [0 - 500 %] Enter the proportional gain value for the
*

14-31 Current Lim Ctrl, Integration Time

Range:
Size related
*
2.000 s]
14-32 Current Lim Ctrl, Filter Time
Range:
1.0 ms
*

14-35 Stall Protection

Option:
[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:
66 %
*
NOTE!
This parameter cannot be adjusted while the motor is
running.
3-132
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Function:
current limit controller. Selection of a high
value makes the controller react faster. Too
high a setting leads to controller
instability.
Function:
[0.002 - 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.
[1.0 - 100.0 ms]
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.
Function:
[40 - 90 %]
MG33MD22 - VLT
FC 300 Programming Guide
NOTE!
This parameter is not active when1-10 Motor Construction is
set to [1] PM non-salient SPM.
14-41 AEO Minimum Magnetisation
Range:
Size related
NOTE!
This parameter is not active when1-10 Motor Construction is
set to [1] PM non-salient SPM.
14-42 Minimum AEO Frequency
Range:
10 Hz
*
NOTE!
Function:
This parameter is not active when1-10 Motor Construction is
set to [1] PM non-salient SPM.

14-43 Motor Cosphi

Range:
Application
dependent
Application
dependent
®
is a registered Danfoss trademark
Function:
[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.
Function:
[5 - 40 Hz] Enter the minimum frequency at which the
Automatic Energy Optimization (AEO) is to
be active.
Function:
[0.40 - The Cos(phi) setpoint is automatically
0.95 ] 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.
[0.40 - The Cos(phi) setpoint is automatically
0.95 ] 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.