Asynchronous Motor Set-Up; Permanent Magnet Motor Set-Up - Danfoss VLT HVAC Drive FC 102 Operating Instructions Manual

Commissioning
7. Press the navigation keys to scroll to
0-01 Language.
8. Select the language and press [OK].
9. If a jumper wire is in place between control
terminals 12 and 27, leave 5-12 Terminal 27 Digital
Input at factory default. Otherwise, select No
Operation in 5-12 Terminal 27 Digital Input.
10. Make the application specific settings in the
following parameters:
10a 3-02 Minimum Reference
10b 3-03 Maximum Reference
3-41 Ramp 1 Ramp Up Time
10c
10d 3-42 Ramp 1 Ramp Down Time
10e 3-13 Reference Site. Linked to Hand/Auto
Local Remote.

5.4.3 Asynchronous Motor Set-up

Enter the following motor data. The information can be
found on the motor nameplate.
1. 1-20 Motor Power [kW] or 1-21 Motor Power [HP]
2. 1-22 Motor Voltage
3. 1-23 Motor Frequency
4. 1-24 Motor Current
5. 1-25 Motor Nominal Speed
When running in Flux mode, or for optimum performance
+
in VVC mode, extra motor data is required to set up the
following parameters. The data can be found in the motor
data sheet (this data is typically not available on the motor
name plate). Run a complete AMA using 1-29 Automatic
Motor Adaptation (AMA) [1] Enable Complete AMA or enter
the parameters manually. 1-36 Iron Loss Resistance (Rfe) is
always entered manually.
1. 1-30 Stator Resistance (Rs)
2. 1-31 Rotor Resistance (Rr)
3. 1-33 Stator Leakage Reactance (X1)
4. 1-34 Rotor Leakage Reactance (X2)
5. 1-35 Main Reactance (Xh)
6. 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 mode is the preferred control mode for optimum
shaft performance in dynamic applications. Perform an
AMA since this control mode requires precise motor data.
MG16I202
Operating Instructions
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
Flux sensorless only
Table 5.7 Recommendations for Flux Applications

5.4.4 Permanent Magnet Motor Set-up

NOTICE
Only use permanent magnet (PM) motor with fans and
pumps.
Initial Programming Steps
+
1.
2.
Programming motor data
After selecting PM motor in 1-10 Motor Construction, the
PM motor-related parameters in parameter groups 1-2*
Motor Data, 1-3* Adv. Motor Data and 1-4* are active.
Danfoss A/S © Rev. 2014-07-29 All rights reserved.
Settings
Keep calculated values.
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.
1-66 Min. Current at Low Speed.
Increase current to a value between
default and maximum depending on
the application.
Adjust 1-18 Min. Current at No Load
to achieve smoother motor
operation by reducing torque ripple
and vibration.
Adjust 1-53 Model Shift Frequency.
Example 1: If the motor oscillates at
5 Hz and dynamics performance is
required at 15 Hz, set 1-53 Model
Shift Frequency to 10 Hz.
Example 2: If the application
involves dynamic load changes at
low speed, reduce 1-53 Model Shift
Frequency. Observe the motor
behaviour 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.
Activate PM motor operation 1-10 Motor
Construction, select (1) PM, non salient SPM
Set 0-02 Motor Speed Unit to [0] RPM
5 5
47