Danfoss VLT AutomationDrive FC 300 Design Manual page 142

FC 300 Design Guide
Function:
Parameter open when par. 1-10 = [1]
PM, non salient SPM.
The value should equal the nameplate data on the
connected motor. The default value corresponds
to the nominal rated output of the unit.
Par. 1-26 cannot be adjusted while the
motor is running.
1-29 Automatic Motor Adaptation (AMA)
Option:
*
OFF
Enable complete AMA
Enable reduced AMA
Function:
If the AMA function is used, the adjustable frequency
drive automatically sets the necessary motor
parameters (par. 1-30 to par. 1-35) with the
motor stationary. AMA ensures optimum use of the
motor. For the best adaptation of the adjustable
frequency drive, run AMA on a cold motor.
Select Enable complete AMA, if the adjustable
frequency drive is to carry out AMA of the stator
resistance R , the rotor resistance R
S
leakage reactance x , the rotor leakage reactance
1
X and the main reactance X
2
Select Reduced AMA if a reduced test is to be
carried out, in which only the stator resistance
R in the system is determined.
s
AMA cannot be carried out while the motor is running.
AMA cannot be carried out on permanent
magnet motors.
Activate the AMA function by pressing [Hand on]
after selecting [1] or [2]. See also section Automatic
Motor Adaptation. After a normal sequence, the
display will read, "Press [OK] to finish AMA." After
pressing the [OK] key, the adjustable frequency
drive is now ready for operation.
NOTE
It is important to set motor par. 1-2*
correctly, since these form part of the
AMA algorithm. For optimum dynamic
motor performance, an AMA must be carried
out. It may take up to 10 min, depending on
the power rating of the motor.
default setting ( ) display text
*
142
How to Program
[0]
[1]
[2]
, the stator
r
.
h
[ ] value for use in communication via serial communication port
MG.33.B3.22 - VLT is a registered Danfoss trademark
NOTE
Avoid externally generating torque
during AMA.
NOTE
If one of the settings in par. 1-2*
is changed, par. 1-30 to 1-39 will
return to default setting.
1-3* Advanced Motor Data
"
The motor data in par. 1-30 - par. 1-39 must
be matching the specific motor, in order for
the motor to run properly. Default settings are
figures based on common motor parameter values
from normal standard motors. If the motor
parameters are not set correctly, it may cause
a malfunction of the drive system.
If the motor data is not known it is recommended
to perform an AMA (Automatic Motor Adaptation).
See section Automatic Motor Adaptation. The
AMA sequence will adjust all motor parameters
except the moment of inertia of the rotor.
Motor equivalent diagram for an asynchronous motor
1-30 Stator Resistance (Rs)
Option:
Ohm
Function:
Sets the stator resistance value for the motor
control. Do not attempt to change par. 1-30
while the motor is running.
1-31 Rotor Resistance (Rr)
Option:
Ohm
Dependingonmotordata.
Dependingonmotordata.