Danfoss VLT AutomationDrive FC 301 Programming Manual page 41

Parameter Descriptions
Application Settings
Dynamic applications Increase parameter 14-41 AEO
Minimum Magnetisation for highly
dynamic applications. Adjusting
parameter 14-41 AEO Minimum
Magnetisation ensures a good
balance between energy efficiency
and dynamics. Adjust
parameter 14-42 Minimum AEO
Frequency to specify the minimum
frequency at which the frequency
converter should use minimum
magnetization.
Motor sizes less than Avoid short ramp-down times.
18 kW (24 hp)
Table 3.5 Recommendations for Various Applications
If the motor starts oscillating at a certain speed, increase
parameter 1-14 Damping Gain. Increase the damping gain
value in small steps. Depending on the motor, this
parameter can be set to 10–100% higher than the default
value.
1-10 Motor Construction
Option: Function:
Select the motor design type.
[0] Asynchron Use for asynchronous motors.
*
[1] PM, non Use for salient or non-salient PM motors.
salient SPM PM motors are divided into 2 groups, with
either surface-mounted (SPM)/non-salient
magnets or interior-mounted (IPM)/salient
magnets.
NOTICE
This option is valid for FC 302 only.
1-11 Motor Model
Option: Function:
Automatically sets the factory values for the
selected motor. If the default value Std.
Asynchron is used, determine settings
manually according to the selection
parameter 1-10 Motor Construction.
[1] Std. Default motor model when [0] Asynchron is
Asynchron selected in parameter 1-10 Motor Construction.
[2] Std. PM, non Selectable when [1] PM, non-salient SPM is
salient selected in parameter 1-10 Motor Construction.
[10] Danfoss OGD Selectable when [1] PM, non-salient SPM is
LA10 selected in parameter 1-10 Motor Construction.
Only available for T4, T5 in 1.5–3 kW. Settings
are loaded automatically for this specific
motor.
[11] Danfoss OGD Selectable when [1] PM, non-salient SPM is
V210 selected in parameter 1-10 Motor Construction.
Only available for T4, T5 in 0.75–3 kW.
MG33MO02
Programming Guide
1-11 Motor Model
Option:
1-14 Damping Gain
Range:
140
% 250 %]
*
1-15 Low Speed Filter Time Const.
Range:
Size related
1-16 High Speed Filter Time Const.
Range:
Size related
1-17 Voltage filter time const.
Range:
Size
related
*
1-18 Min. Current at No Load
Range:
0 %
*
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Function:
Settings are loaded automatically for this
specific motor.
Function:
[0 - The damping gain stabilizes the PM machine to
run smoothly and with stability. The value of
damping gain controls the dynamic performance
of the PM machine. High damping gain gives
high dynamic performance and low damping
gain gives low dynamic performance. The
dynamic performance is related to the machine
data and load type. If the damping gain is too
high or low, the control becomes unstable.
Function:
[0.01 - 20 This time constant is used below 10%
*
s] rated speed. Obtain quick control
through a short damping time
constant. However, if this value is too
short, the control becomes unstable.
Function:
[0.01 - 20 This time constant is used above 10%
*
s] rated speed. Obtain quick control
through a short damping time
constant. However, if this value is too
short, the control becomes unstable.
Function:
[0.001 - 1 Reduces the influence of high
s] frequency ripple and system resonance
in the calculation of supply voltage.
Without this filter, the ripples in the
currents can distort the calculated
voltage and affect the stability of the
system.
Function:
[0 - 50 %] Adjust this parameter to achieve a smoother
motor operation.
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