Danfoss VLT AutomationDrive FC 301 Programming Manual page 47

Parameter Descriptions
Application Settings
High-load at low speed Increase parameter 1-17 Voltage filter
<30% (rated speed) time const.
Increase parameter 1-66 Min. Current
at Low Speed to adjust the starting
torque. 100% current provides
nominal torque as starting torque.
This parameter is independent of
parameter 30-20 High Starting Torque
Time [s] and parameter 30-21 High
Starting Torque Current [%]). Working
at a current level higher than 100%
for a prolonged time can cause the
motor to overheat.
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 18 Avoid short ramp-down times.
kW
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.
[5] Sync. Use for synchronous reluctance motors.
Reluctance
MG33ML02
Programming Guide
1-10 Motor Construction
Option:
1-11 Motor Model
Option:
[1] Std.
Asynchron
[2] Std. PM, non
salient
[10] Danfoss
OGD LA10
[11] Danfoss
OGD V210
1-14 Damping Gain
Range:
140
% 250 %]
*
1-15 Low Speed Filter Time Const.
Range:
Size related
Danfoss A/S © 02/2016 All rights reserved.
Function:
NOTICE
This option is valid for FC 302 only.
This option is fully functional in
firmware version 7.31 and later.
Consult Danfoss before using this
option in a frequency converter with
an earlier firmware version.
Function:
NOTICE
This parameter is valid for FC 302 only.
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.
Default motor model when [0] Asynchron. is
selected in parameter 1-10 Motor Construction.
Selectable when [1] PM, non-salient SPM is
selected in parameter 1-10 Motor Construction.
Selectable when [1] PM, non-salient SPM is
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.
Selectable when [1] PM, non-salient SPM is
selected in parameter 1-10 Motor Construction.
Only available for T4, T5 in 0.75–3 kW.
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.
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