Permanent Magnet Motor Set-Up - Danfoss VLT AutomationDrive FC 302 Installation Manual

Start-up and Functional Tes...
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.
5 5 Application-specific adjustment when running Flux
Flux mode is the preferred control mode 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 Table 5.7 for application-related recommendations.
Application
Low-inertia applications
High-inertia applications
High load at low speed
No-load application
58
®
VLT AutomationDrive FC 302 Low Harmonic Drive
132–630 kW
+
Settings
Keep calculated values.
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.
Parameter 1-66 Min. Current at Low
Speed.
Increase current to a value between
default and maximum depending on
the application.
Adjust parameter 1-18 Min. Current at
No Load to achieve smoother motor
operation by reducing torque ripple
and vibration.
Danfoss A/S © Rev. 04/2015 All rights reserved.
Application Settings
Flux sensorless 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 adjustable frequency drive
tripping.
Table 5.7 Recommendations for Flux Applications

5.4.5 Permanent Magnet Motor Set-up

NOTICE!
Only use permanent magnet (PM) motor with fans and
pumps.
Initial Programming Steps
1. Activate PM motor operation
Parameter 1-10 Motor Construction, select (1) PM,
non-salient SPM
2. Set parameter 0-02 Motor Speed Unit to [0] RPM
Programming motor data
After selecting PM motor in Parameter 1-10 Motor
Construction, the PM motor-related parameters in
parameter groups 1-2* Motor Data, 1-3* Addl. Motor Data
and 1-4* are active.
The necessary data can be found on the motor nameplate
and in the motor data sheet.
Program the following parameters in the listed order
1. Parameter 1-24 Motor Current
2. Parameter 1-26 Motor Cont. Rated Torque
3. Parameter 1-25 Motor Nominal Speed
4. Parameter 1-39 Motor Poles
5. Parameter 1-30 Stator Resistance (Rs)
Enter line to common stator winding resistance
(R ). If only line-line data are available, divide the
s
MG37A322