1.
Parameter 1-30 Stator Resistance (Rs)
.
2.
Parameter 1-31 Rotor Resistance (Rr)
.
3.
Parameter 1-33 Stator Leakage Reactance (X1)
.
4.
Parameter 1-34 Rotor Leakage Reactance (X2)
.
5.
Parameter 1-35 Main Reactance (Xh)
.
6.
Parameter 1-36 Iron Loss Resistance (Rfe)
.
Application-specific adjustment when running VVC
+
VVC
+
is the most robust control mode. In most situations,
it provides optimum performance without further
adjustments. Run a complete AMA for best performance.
Application-specific adjustment when running flux
Flux control principle is the preferred control principle for
optimum shaft performance in dynamic applications.
Perform an AMA since this control mode requires precise
motor data. Depending on the application, further
adjustments may be required.
See
for application-related recommendations.
Application
Settings
Low-inertia applications
Keep calculated values.
High-inertia applications
Parameter 1-66 Min. Current at Low
Speed
.
Increase current to a value between
default and maximum depending on
the application.
Set ramp times matching the
application. Too fast ramp up causes
an overcurrent or overtorque. Too
fast ramp down causes an
overvoltage trip.
High load at low speed
Parameter 1-66 Min. Current at Low
Speed
.
Increase current to a value between
default and maximum depending on
the application.
No-load application
Adjust
parameter 1-18 Min. Current at
No Load
to achieve smoother motor
operation by reducing torque ripple
and vibration.
Application
Settings
Flux sensorless control
principle only
Adjust
parameter 1-53 Model Shift
Frequency
.
Example 1: If the motor oscillates at
5 Hz, and dynamics performance is
required at 15 Hz, set
parameter 1-53 Model Shift Frequency
to 10 Hz.
Example 2: If the application
involves dynamic load changes at
low speed, reduce
parameter 1-53 Model Shift Frequency
.
Observe the motor behavior to
make sure that the model shift
frequency is not reduced too much.
Symptoms of inappropriate model
shift frequency are motor oscillations
or frequency converter tripping.
Table 3.3 Recommendations for Flux Applications
3.2.4 PM Motor Set-up
NOTICE
Valid for FC 302 only.
This section describes how to set up a PM motor.
Initial programming steps
To activate PM motor operation, select
[1] PM, non-salient
SPM
in
parameter 1-10 Motor Construction
.
Programming motor data
After selecting a PM motor, the PM motor-related
parameters in
parameter groups 1-2* Motor Data
,
1-3* Adv.
Motor Data
, and
1-4* Adv. Motor Data II
are active.
The necessary data is on the motor nameplate and on the
motor datasheet.
Program the following parameters in the order listed:
1.
Parameter 1-24 Motor Current
.
2.
Parameter 1-25 Motor Nominal Speed
.
3.
Parameter 1-26 Motor Cont. Rated Torque
.
4.
Parameter 1-39 Motor Poles
.
Run a complete AMA using
parameter 1-29 Automatic
Motor Adaptation (AMA)
[1] Enable Complete AMA
.
If a complete AMA is not performed, configure the
following parameters manually:
1.
Parameter 1-30 Stator Resistance (Rs)
Enter the line-to-common stator winding
resistance (Rs). If only line-line data is available,
divide the line-line value by 2 to get the line-
common value.
2.
Parameter 1-37 d-axis Inductance (Ld)
Parameter Descriptions
Programming Guide
MG33MP02
Danfoss A/S © 10/2018 All rights reserved.
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Summary of Contents for VLT AutomationDrive FC 302
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