1-26 Motor Cont. Rated Torque
Range:
Function:
output. This parameter is available
when
1-10 Motor Construction
is set
to
PM, non salient SPM
[1], i.e., the
parameter is valid for PM and non-
salient SPM motors only.
Application
dependent
*
[0.1 -
10000.0
Nm]
Enter the value from the motor
nameplate data. The default value
corresponds to the nominal rated
output. This parameter is available
when
1-10 Motor Construction
is set
to
PM, non salient SPM
[1], i.e., the
parameter is valid for PM and non-
salient SPM motors only.
1-29 Automatic Motor Adaptation (AMA)
Option:
Function:
The AMA function optimizes dynamic motor
performance by automatically optimizing the
advanced motor parameters (
1-30 Stator
Resistance (Rs)
to
1-35 Main Reactance (Xh)
) at
motor standstill.
Activate the AMA function by pressing [Hand
on] after selecting [1] or [2]. See also the
section
Automatic Motor Adaptation
in the
Design Guide. After a normal sequence, the
display will read: "Press [OK] to finish AMA".
After pressing the [OK] key, the Adjustable
frequency drive is ready for operation.
This parameter cannot be adjusted while the
motor is running.
[0]
*
Off
[1]
Enable
complete
AMA
Performs AMA of the stator resistance R
S
, the
rotor resistance R
r
, the stator leakage reactance
X
1
, the rotor leakage reactance X
2
and the
main reactance X
h
. Do
not
select this option if
an LC filter is used between the Adjustable
frequency drive and the motor.
FC 301: The Complete AMA does not include
X
h
measurement for FC 301. Instead, the X
h
value is determined from the motor database.
R
S
is the best adjustment method (see
1-3*
Adv. Motor Data
).
T4/T5 E and F frames, T7 D, E and F frames will
only run a reduced AMA when the complete
AMA is selected. It is recommended to obtain
the Advanced Motor Data from the motor
manufacturer to enter into
1-31 Rotor Resistance
(Rr)
through
1-36 Iron Loss Resistance (Rfe)
for
best performance.
1-29 Automatic Motor Adaptation (AMA)
Option:
Function:
[2]
Enable
reduced
AMA
Performs a reduced AMA of the stator
resistance R
s
in the system only.
Note:
•
For the best adaptation of the Adjustable
frequency drive,, run AMA on a cold motor.
•
AMA cannot be performed while the motor is
running.
•
AMA cannot be performed on permanent magnet
motors.
NOTE!
It is important to set motor parameter group 1-2*
correctly, since these form part of the AMA algorithm. An
AMA must be performed to achieve optimum dynamic
motor performance. It may take up to 10 min, depending
on the power rating of the motor.
NOTE!
Avoid generating external torque during AMA.
NOTE!
If one of the settings in parameter group 1-2* is changed,
1-30 Stator Resistance (Rs)
to
1-39 Motor Poles
, the
advanced motor parameters, will return to default setting.
NOTE!
AMA will work problem-free on 1 motor size down,
typically work on 2 motor sizes down, rarely work on 3
sizes down and never work on 4 sizes down. Please keep
in mind that the accuracy of the measured motor data will
be poorer when you operate on motors smaller than
nominal VLT size.
3.3.4 1-3* Addl. Motor Data
Parameters for advanced motor data. The motor data in
1-30 Stator Resistance (Rs)
to
1-39 Motor Poles
must match
the relevant motor in order to run the motor optimally.
The default settings are figures based on common motor
parameter values from standard motors. If the motor
parameters are not set correctly, a malfunction of the
Adjustable frequency drive system may occur. If the motor
data is not known, running an AMA (Automatic Motor
Adaptation) is recommended. See the
Automatic Motor
Adaptation
section in the Design Guide. The AMA
sequence will adjust all motor parameters except the
Parameter Descriptions
FC 300 Programming Guide
3-16
MG33MD22 - VLT
®
is a registered Danfoss trademark
3
3
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