Step 3. Activate the Automatic Motor Adaptation (AMA)
Performing an AMA will ensure optimum performance. The AMA measures the values from the motor model equivalent diagram.
1. Connect terminal 37 to terminal 12 (if terminal 37 is available).
2. Connect terminal 27 to terminal 12 or set par. 5-12
Terminal 27 Digital Input
to 'No function' (par. 5-12
Terminal 27 Digital Input
[0])
3. Activate the AMA par. 1-29
Automatic Motor Adaptation (AMA)
.
4. Choose between complete or reduced AMA. If a sine-wave filter is mounted, run only the reduced AMA, or remove the sine-wave filter during
the AMA procedure.
5. Press the [OK] key. The display shows “Press [Hand on] to start”.
6. Press the [Hand on] key. A progress bar indicates if the AMA is in progress.
Stop the AMA during operation
1. Press the [OFF] key - the adjustable frequency drive enters into alarm mode and the display shows that the AMA was terminated by the user.
Successful AMA
1. The display shows “Press [OK] to finish AMA”.
2. Press the [OK] key to exit the AMA state.
Unsuccessful AMA
1. The adjustable frequency drive enters into alarm mode. A description of the alarm can be found in the
Warnings and Alarms
chapter.
2. "Report Value” in the [Alarm Log] shows the last measuring sequence carried out by the AMA, before the adjustable frequency drive entered
alarm mode. This number, along with the description of the alarm, will assist you in troubleshooting. If you contact Danfoss for service, make
sure to mention the number and alarm description.
NOTE!
Unsuccessful AMA is often caused by incorrectly registered motor nameplate data or a too big difference between the motor power
size and the adjustable frequency drive power size.
Step 4. Set speed limit and ramp time
par. 3-02
Minimum Reference
par. 3-03
Maximum Reference
Table 3.19: Set up the desired limits for speed and ramp time.
par. 4-11
Motor Speed Low Limit [RPM]
or par. 4-12
Motor
Speed Low Limit [Hz]
par. 4-13
Motor Speed High Limit [RPM]
or par. 4-14
Motor
Speed High Limit [Hz]
par. 3-41
Ramp 1 Ramp up Time
par. 3-42
Ramp 1 Ramp Down Time
3 How to Install VLT AQUA High Power Instruction Manual
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MG.20.P3.22 - VLT
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is a registered Danfoss trademark
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