Checking Motor Rotation; Checking Encoder Rotation; Local Control Test - Danfoss VLT Midi Drive FC 280 Instruction Manual

Commissioning
•
Run this procedure on a cold motor for best
results.
To run AMA using the LCP
1. By default parameter setting, connect terminals
12 and 27 before running AMA.
2. Enter the Main Menu.
3. Go to parameter group 1-** Load and Motor.
4. Press [OK].
5 5
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.
Depending on the power size, the AMA takes 3 to 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 adjustable frequency drive, check the
motor rotation.
1. Press [Hand On].
2.
Press [
3. Check that the speed displayed is positive.
4. Verify that the wiring between the adjustable
frequency drive and the motor is correct.
5. Verify that the motor running direction matches
the setting in parameter 1-06 Clockwise Direction.
30
▲
] for positive speed reference.
•
When parameter 1-06 Clockwise Direction
is set to [0] Normal (default clockwise):
Danfoss A/S © 11/2015 All rights reserved.
®
VLT Midi Drive FC 280

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 adjustable frequency drive
after a trip.
a. Verify that the motor turns
clockwise.
b. Verify that the LCP direction
arrow is clockwise.
•
When parameter 1-06 Clockwise Direction
is set to [1] Inverse (counter-clockwise):
a. Verify that the motor turns
counter-clockwise.
b. Verify that the LCP direction
arrow is counter-clockwise.
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 adjustable frequency drive.
Accelerate the adjustable frequency drive 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.
MG07A122