recommended. See detailed
chapter 3.4 Automatic Motor Adaptation
.
Parameter 3-02 Minimum Reference
. Set
the minimum speed of the motor shaft.
Parameter 3-03 Maximum Reference
. Set
the maximum speed of the motor shaft.
Parameter 3-41 Ramp 1 Ramp Up Time
Set the ramping up time regarding
synchronous motor speed, ns
Parameter 3-42 Ramp 1 Ramp Down
Time
. Set the ramping down time
regarding synchronous motor speed, ns
Parameter 3-13 Reference Site
. Set the
site from where the reference must work
See
Quick Menu Parameters
for further details.
3.4 Automatic Motor Adaptation
Automatic motor adaptation (AMA) is a test procedure
which measures the electrical characteristics of the motor.
The AMA procedure optimizes compatibility between the
frequency converter and the motor. The frequency
converter builds a mathematical model of the motor for
regulating output motor current. The procedure also tests
the input phase balance of electrical power and compares
the motor characteristics with the data entered in
parameters 1-20 to 1-25. Run this procedure at startup. It
does not cause the motor to run or harm to the motor. For
best result, run the procedure on a cold motor.
To run AMA
1.
Enter the motor name plate data in the frequency
converter, as described in
2.
Connect terminal 37 to terminal 13.
3.
Connect terminal 27 to terminal 12 or set
parameter 5-12 Terminal 27 Digital Input
to
No
function
.
4.
Activate the AMA
parameter 1-29 Automatic Motor
Adaptation (AMA)
.
5.
Choose between complete or reduced AMA.
6.
Press [OK]. The display shows
Press [Hand on] to
start
.
7.
Press [Hand On]. A progress bar indicates that the
AMA is in progress.
Stop the AMA during operation
Press [Off] - the frequency converter enters into alarm
mode and the display shows that the user terminated the
AMA procedure.
Successful AMA
1.
The display shows
Press [OK] to finish AMA
.
2.
Press [OK] exit the AMA state.
Unsuccessful AMA
1.
The frequency converter enters alarm mode. A
description of the alarm can be found in
2.
Report Value
in the [Alarm Log] shows that 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 assists in troubleshooting. If contacting
Danfoss for service, make sure to mention
number and alarm description.
NOTICE
Frequent causes of unsuccessful AMA:
•
Incorrectly registered motor name plate data.
•
Too great a difference between the motor
power size and the frequency converter power
size.
3.5 Local-control Test
WARNING
MOTOR START
Ensure that the motor, system, and any attached
equipment are ready for start. Failure to ensure that the
motor, system, and any attached equipment are ready
for start could result in personal injury or equipment
damage.
NOTICE
The [Hand On] key, on the LCP, provides a local start
command to the frequency converter. The [Off] key
provides the stop function. When operating in local
mode, [
▲
] and [
▼
] on the LCP increase and decrease the
speed output of the frequency converter. [
◄
] and [
►
]
move the display cursor in the numeric display. Moving
the cursor left of the decimal point provides quicker
input changes.
1.
Press [Hand On].
2.
Accelerate the frequency converter by pressing
[
▲
] to full speed.
3.
Note any acceleration problems.
4.
Press [Off].
5.
Note any deceleration problems.
In the event of acceleration problems:
•
If warnings or alarms occur, see
•
Check that motor data is entered
correctly.
Start Up and Functional Tes...
VLT
®
Decentral Drive FCD 302
30
Danfoss A/S © 05/2016 All rights reserved.
MG04F402
3
3