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 27 to terminal 12 or set par. 5-12 to 'No function' (par. 5-12 [0])
2.
Activate the AMA par. 1-29.
3.
Choose between complete or reduced AMA. If an LC filter is mounted, run only the reduced AMA, or remove the LC filter during the AMA
procedure.
4.
Press the [OK] key. The display shows “Press [Hand on] to start”.
5.
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 frequency converter 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 frequency converter 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 frequency converter entered alarm
mode. This number along with the description of the alarm will assist you in troubleshooting. If you contact Danfoss Service, make sure to
mention number and alarm description.
NB!
Unsuccessful AMA is often caused by incorrectly registered motor name plate data or too big difference between the motor power size
and the VLT Automation VT Drive power size.
Step 4. Set speed limit and ramp time
.
Set up the desired limits for speed and ramp time.
Minimum Reference
par. 3-02
Maximum Reference
par. 3-03
Motor Speed Low Limit
par. 4-11 or 4-12
Motor Speed High Limit
par. 4-13 or 4-14
Ramp-up Time 1 [s]
par. 3-41
Ramp-down Time 1 [s]
par. 3-42
5.7.1 Safe Stop Installation
To carry out an installation of a Category 0 Stop (EN60204) in
conformance with Safety Category 3 (EN954-1), follow these
instructions:
1.
The bridge (jumper) between Terminal 37 and 24 V DC of FC322
must be removed. Cutting or breaking the jumper is not suffi-
cient. Remove it entirely to avoid short-circuiting. See jumper
on illustration.
2.
Connect terminal 37 to 24 V DC by a short-circuit protected ca-
ble. The 24 V DC voltage supply must be interruptible by an
EN954-1 Category 3 circuit interrupt device. If the interrupt de-
vice and the frequency converter are placed in the same instal-
lation panel, you can use a regular cable instead of a protected
one.
Automation VT Drive FC322 Design Guide
5 How to Install
MG.20.X1.22 - VLT
®
is a registered Danfoss trademark
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