Step 3:
Activate Automatic Motor Adaptation (AMA)Activate Auto Tune
Performing AMA ensures best possible performance. AMA automatically takes measurements from the specific motor connected and compensates for
installation variances.
1.
Connect terminal 27 to terminal 12 or use [QUICK MENU] and "Q2 Quick Set-up" and set Terminal 27 par. 5-12
Terminal 27 Digital Input
to
No
function [0]
2.
Press [QUICK MENU], select "Q3 Function Set-ups", select "Q3-1 General Settings", select "Q3-10 Adv. Motor Settings" and scroll down to
par. 1-29
Automatic Motor Adaptation (AMA)
Automatic Motor Adaption.
3.
Press [OK] to activate the AMA par. 1-29
Automatic Motor Adaptation (AMA)
4.
Choose between complete or reduced AMA. If sine-wave filter is mounted, run only reduced AMA, or remove sine-wave filter during AMA
procedure.
5.
Press the [OK] key. Display should show “Press [Hand on] to start”.
6.
Press [Hand on] key. A progress bar indicates if 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
Troubleshooting
section.
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 in troubleshooting. If contacting Danfoss Service, make sure to
mention number and alarm description.
NOTE!
Unsuccessful AMA is often caused by incorrectly entered motor nameplate data or too big difference between the motor power size
and the adjustable frequency drive power size.
Step 4:
Set speed limit and ramp time
Set up the desired limits for speed and ramp time.
Ramp-up Time 1 [s]
Ramp-down Time 1 [s]
See the section
How to program the adjustable frequency drive, Quick Menu Mode
for easy set-up of these parameters.
VLT
®
HVAC Drive Instruction Manual
4 Electrical Installation
MG.11.AB.22 - VLT
®
is a registered Danfoss trademark
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4
