Addl. Motor Data; Motor Cont. Rated Torque; Automatic Motor Adaptation (Ama) - Danfoss VLT AutomationDrive Programming Manual

Parameter Descriptions

1-26 Motor Cont. Rated Torque

Range:
3 3
Application
dependent
*

1-29 Automatic Motor Adaptation (AMA)

Option:
[0] Off
*
[1] Enable
complete
AMA
3-16
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FC 300 Programming Guide
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.
[0.1 - Enter the value from the motor
10000.0 nameplate data. The default value
Nm] 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.
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.
Performs AMA of the stator resistance R
rotor resistance R , the stator leakage reactance
r
X , the rotor leakage reactance X
1
main reactance X . Do not select this option if
h
an LC filter is used between the Adjustable
frequency drive and the motor.
FC 301: The Complete AMA does not include
X measurement for FC 301. Instead, the X
h
value is determined from the motor database.
R is the best adjustment method (see 1-3*
S
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.
MG33MD22 - VLT
1-29 Automatic Motor Adaptation (AMA)
Option:
[2] Enable
reduced
AMA
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
, the
S
be poorer when you operate on motors smaller than
nominal VLT size.
and the
2

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
h
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
®
is a registered Danfoss trademark
Function:
Performs a reduced AMA of the stator
resistance R in the system only.
s