Running Ama Via Lcp; Checking Motor Rotation; Checking Encoder Rotation; Testing Local-Control - Danfoss VLT FC 280 Operating Manual

VLT® Midi Drive FC 280
Operating Guide
The AMA function does not cause the motor to run, and it does not harm the motor.

5.4.3.2 Running AMA via LCP

Procedure
1. By default parameter setting, connect terminals 13 and 27 before running AMA.
2.
Enter the Main Menu.
3.
Go to parameter group 1-** Load and Motor.
4. Press [OK].
5. Set motor parameters using nameplate data for parameter group 1-2* Motor Data.
6. Set motor cable length in parameter 1-42 Motor Cable Length.
7.
Go to parameter 1-29 Automatic Motor Adaptation (AMA).
8. Press [OK].
9.
Select [1] Enable complete AMA.
10.
Press [OK].
11. The test runs automatically and indicates when it is complete.
12.
Depending on the power size, the AMA takes 3–10 minutes to complete.

5.5 Checking Motor Rotation

Check the motor rotation before running the drive.
Procedure
1. Press [Hand On].
2.
Press [▵] for positive speed reference.
3. Check that the speed shown is positive.
4.
Verify that the wiring between the drive and the motor is correct.
5.
Verify that the motor running direction matches the setting in parameter 1-06 Clockwise Direction.
a.
When parameter 1-06 Clockwise Direction is set to [0] Normal (default clockwise), verify that the motor turns clock-
wise and the LCP direction arrow is clockwise.
b.
When parameter 1-06 Clockwise Direction is set to [1] Inverse (counterclockwise), verify that the motor turns coun-
terclockwise and the LCP direction arrow is counterclockwise.

5.6 Checking Encoder Rotation

Only check encoder rotation if encoder feedback is used.
Procedure
1.
Select [0] Open Loop in parameter 1-00 Configuration Mode.
2. Select [1] 24 V encoder in parameter 7-00 Speed PID Feedback Source.
3. Press [Hand On].
4.
Press [▵] for positive speed reference (parameter 1-06 Clockwise Direction at [0] Normal).
5.
Check in parameter 16-57 Feedback [RPM] that the feedback is positive.
NEGATIVE FEEDBACK
If the feedback is negative, the encoder connection is wrong.
-
Use parameter 5-71 Term 32/33 Encoder Direction to inverse the direction, or reverse the encoder cables.

5.7 Testing Local-control

Procedure
1. Press [Hand On] to provide a local start command to the drive.
2. Accelerate the drive by pressing [▵] to full speed. Moving the cursor left of the decimal point provides quicker input
changes.
3. Note any acceleration problems.
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