36
✭
Indicates default parameter. Depending upon the application, the drive may be delivered with other parameters selected.
CAUTION
!
It is important to set correct value in parameter
106,
Rated Motor Speed, since this forms part
of VVC
+
control feature. Changing value in pa-
rameter 104,
Motor Frequency, after rated motor
speed has been entered in parameter 106 may
automatically change the value in parameter 106.
106
Rated Motor Speed
(MOTOR NOM. SPEED)
Value:
100 through 60000
✭
Depends on parameter 102, Motor Power
Function:
This is where the value is set that corresponds to the rated motor
speed shown on the motor nameplate.
Description of choice:
Choose a value that corresponds to the motor nameplate data.
107
Automatic Motor Adaptation, AMA
(AUTO MOTOR ADAPT)
Value:
★
Optimization disable (NO AMA)
[0]
Automatic adaptation (RUN AMA)
[1]
Automatic adaptation with LC-filter
(RUN AMA WITH LC-FILT)
[2]
Function:
Automatic Motor Adaptation (AMA) is an advanced procedure that
measures electrical characteristics of the motor. This procedure does
not run the motor.
AMA optimizes the adjustment of the drive to the motor. This feature is
particularly useful with nonstandard motors, higher HP motors, and
when the drive-to-motor cable length is long. Although it is not
necessary to run AMA, it is highly recommended for optimum operation
and increases the capability of the Automatic Energy Optimization
function selectable in parameter 101, Torque Characteristics.
For the best adjustment of the drive, it is recommended to carry out
AMA on a cold motor.
CAUTION
!
Repeated AMA runs may lead to a heating of
motor that will result in an increase of stator
resistance. This will reduce accuracy. Allow
motor to cool before running AMA.
If an output LC-filter has been connected between the drive and the
motor, select the Automatic Adaptation with LC-Filter. If the complete
AMA procedure is desired, remove the LC-filter, run Automatic
Adaptation (RUN AMA), and reinstall the filter.
NOTE
Some motors may be unable to run AMA.
Au-
tomatic Motor Adaptation with LC-Filter is a
reduced AMA procedure which can be effective
in such cases when run without an LC-filter in-
stalled since results measure motor’s stator and
effects of cable length.
The following must be noted when the AMA function is used:
-
Before running AMA, the correct nameplate data for the motor
must be entered in parameters 102 to 106.
-
Total automatic motor adaptation may take up to 10 minutes.
-
Alarms and warnings will be shown in the display if faults occur
during motor adaptation.
-
AMA can only be carried out if the rated motor current of the motor
is at least 35% of the rated output current of the drive.
-
To cancel AMA, press the OFF/STOP key.
CAUTION
!
AMA cannot be used on multiple motor appli-
cations.
Description of choice:
Select Automatic Adaptation if the drive is to carry out a complete
automatic motor adaptation procedure.
Select Automatic Adaptation with LC-Filter if an LC-filter has been
placed between the drive and the motor or to run a reduced AMA
without an LC-filter installed.
Procedure for Automatic Motor Adaptation:
1.
Set motor parameters, 102 through 106, according to motor
nameplate data.
2.
Connect 24 VDC from terminal 12, or external to drive, to
terminal 27.
3.
Select either Automatic Adaptation or Automatic Adaptation with
LC-Filter in parameter 107, Automatic Motor Adaptation, AMA.
4.
Start drive by pressing Hand Start or connect terminal 18 (start) to
terminal 12 and press Auto Start.
If the Automatic Motor Adaptation is to be stopped prior to completion:
Press OFF/STOP key.
After a normal sequence, the display reads: AMA STOP
1.
Press RESET key. Drive is now ready for operation.
NOTE
RESET key must be pressed after AMA
is completed to load results into drive.
