Checking Motor Rotation; Checking Encoder Rotation; Local-Control Test; System Start-Up - Danfoss VLT Midi Drive FC 280 Operating Manual

Commissioning
To run AMA using the LCP
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 Adaption
(AMA).
8. Press [OK].
9. Select [1] Enable complete AMA.
10. Press [OK].
11. The test runs automatically and indicates when it
is complete.
Depending on the power size, the AMA takes 3–
10 minutes to complete.
NOTICE
The AMA function does not cause the motor to run and
it does not harm the motor.

5.5 Checking Motor Rotation

Before running the frequency converter, check the motor
rotation.
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 frequency
converter and the motor is correct.
5. Verify that the motor running direction matches
the setting in parameter 1-06 Clockwise Direction.
5a When parameter 1-06 Clockwise Direction
is set to [0] Normal (default clockwise):
a. Verify that the motor turns
clockwise.
b. Verify that the LCP direction
arrow is clockwise.
5b When parameter 1-06 Clockwise Direction
is set to [1] Inverse (counterclockwise):
MG07A402
Operating Guide

5.6 Checking Encoder Rotation

Only check encoder rotation if encoder feedback is used.
1.
2.
3.
4.
5.
NOTICE
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 Local-control Test

1.
2.
3.
4.
If acceleration or deceleration problems occur, see
chapter 8.5 Troubleshooting. See chapter 8.2 Warning and
Alarm Types for resetting the frequency converter after a
trip.

5.8 System Start-up

The procedure in this section requires user-wiring and
application programming to be completed. The following
procedure is recommended after application set-up is
completed.
1.
2.
3.
4.
Danfoss A/S © 10/2017 All rights reserved.
a. Verify that the motor turns
counterclockwise.
b. Verify that the LCP direction
arrow is counterclockwise.
Select [0] Open Loop in parameter 1-00 Configu-
ration Mode.
Select [1] 24 V encoder in parameter 7-00 Speed
PID Feedback Source.
Press [Hand On].
▲
Press [ ] for positive speed reference
(parameter 1-06 Clockwise Direction at [0] Normal).
Check in parameter 16-57 Feedback [RPM] that the
feedback is positive.
Press [Hand On] to provide a local start command
to the frequency converter.
Accelerate the frequency converter by pressing
▲
[ ] to full speed. Moving the cursor left of the
decimal point provides quicker input changes.
Note any acceleration problems.
Press [Off]. Note any deceleration problems.
Press [Auto On].
Apply an external run command.
Adjust the speed reference throughout the speed
range.
Remove the external run command.
5 5
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