Automatic Motor Adaptation (Ama); Checking Motor Rotation; Local Control Test; System Start-Up - Danfoss VLT AQUA Drive FC 202 Installation Manual

Commissioning

5.4.7 Automatic Motor Adaptation (AMA)

AMA is a procedure which optimizes compatibility
between the adjustable frequency drive and the motor.
•
The adjustable frequency drive builds a
mathematical model of the motor for regulating
output motor current. The procedure also tests
the input phase balance of electrical power. It
compares the motor characteristics with the
entered nameplate data.
•
The motor shaft does not turn and no harm is
done to the motor while running the AMA.
•
Some motors may be unable to run the complete
version of the test. In that case, select [2] Enable
reduced AMA.
•
If an output filter is connected to the motor,
select [2] Enable reduced AMA.
•
If warnings or alarms occur, see
chapter 7 Diagnostics and Trouble-
shootingchapter 7 Diagnostics and Troubleshooting.
•
Run this procedure on a cold motor for best
results.
To run AMA
1. Press [Main Menu] to access parameters.
2. Scroll to parameter group 1-** Load and Motor
and press [OK].
3. Scroll to parameter group 1-2* Motor Data and
press [OK].
4. Scroll to parameter 1-29 Automatic Motor
Adaptation (AMA) and press [OK].
5. Select [1] Enable complete AMA and press [OK].
6. Follow the on-screen instructions.
7. The test runs automatically and indicates when it
is complete.
8. The advanced motor data is entered in parameter
group 1-3* Adv. Motor Data.

5.5 Checking Motor Rotation

NOTICE!
Risk of damage to pumps/compressors caused by motor
running in wrong direction. Before running the
adjustable frequency drive, check the motor rotation.
The motor runs briefly at 5 Hz or the minimum frequency
set in parameter 4-12 Motor Speed Low Limit [Hz].
MG21B322
Installation Manual
1.
2.
3.
The following text appears: Note! Motor may run in wrong
direction.
4.
5.
NOTICE!
To change the direction of rotation, remove power to the
adjustable frequency drive and wait for power to
discharge. Reverse the connection of any two of the
three motor wires on the motor or adjustable frequency
drive side of the connection.

5.6 Local Control Test

1.
2.
3.
4.
In the event of acceleration or deceleration problems, see
chapter 7.5 Troubleshootingchapter 7.5 Troubleshooting. See
chapter 7.3 Warnings and Alarm Definitions - Adjustable
Frequency Drive for resetting the adjustable frequency drive
after a trip.

5.7 System Start-up

The procedure in this section requires wiring and
application programming to be completed. The following
procedure is recommended after application set-up is
completed.
1.
2.
3.
4.
5.
If warnings or alarms occur, see chapter 7.3 Warnings and
Alarm Definitions - Adjustable Frequency Drive or
chapter 7.4 Warning and Alarm Definitions - Filter (Left LCP).
Danfoss A/S © 10/2015 All rights reserved.
Press [Main Menu].
Scroll to parameter 1-28 Motor Rotation Check and
press [OK].
Scroll to [1] Enable.
Press [OK].
Follow the on-screen instructions.
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.
Press [Auto On].
Apply an external run command.
Adjust the speed reference throughout the speed
range.
Remove the external run command.
Check the sound and vibration levels of the
motor to ensure that the system is working as
intended.
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