Danfoss VLT AutomationDrive FC 301 Programming Manual page 139

Parameter Descriptions
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 Controls the current limit control
*
s] 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:
Size [1 - Controls the current limit control low-pass
related 100 filter.
*
ms] 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 in stead
trip on the hardware limit for current.
However, the control reacts slower as it
does not react on immediate values.
14-35 Stall Protection
Option: Function:
14-35 Stall Protection is active in Flux mode only.
[0] Disabled Disables stall protection in field-weakening flux
mode and might cause the motor to be lost.
[1] Enabled Enables stall protection in field-weakening flux
*
mode.
14-32 Current Lim Ctrl, Filter Time
Configures the Field Weakening Function in Flux mode
Range:
Size related [1 - 100 ms]
*
3.15.6 14-4* Energy Optimising
Parameters for adjusting the energy optimisation level in
both Variable Torque (VT) and Automatic Energy Optimi-
sation (AEO) mode in 1-03 Torque Characteristics.
14-40 VT Level
Range: Function:
NOTICE
66 % [40 -
*
90 %]
This parameter cannot be adjusted
while the motor is running.
®
VLT AutomationDrive FC 301/302 Programming Guide
14-40 VT Level
Range:
NOTICE
This parameter is not active when 1-10 Motor
Construction is set to [1] PM non salient SPM.
14-41 AEO Minimum Magnetisation
Range:
Size related
NOTICE
This parameter is not active when 1-10 Motor
Construction is set to [1] PM non salient SPM.
14-42 Minimum AEO Frequency
Range:
10 Hz
*
NOTICE
This parameter is not active when 1-10 Motor
Construction is set to [1] PM non salient SPM.
14-43 Motor Cosphi
Range:
Size
related
*
Function:
MG33MH02 - Rev. 2013-09-30
Function:
Enter the level of motor magnetisation at low
speed. Selection of a low value reduces energy
loss in the motor, but also reduces load
capability.
Function:
[40 - Enter the minimum allowable magneti-
*
75 %] sation 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 Optimisation (AEO) is to
be active.
Function:
[0.40 - The Cos(phi) setpoint is automatically set
0.95 ] 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.
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