is correct. Press [Off] to stop the motor”. Pressing [Off]
stops the motor and resets
. If
motor rotation direction is incorrect, two motor phase
cables should be interchanged.
WARNING
Mains power must be removed before disconnecting
motor phase cables.
1-29 Automatic Motor Adaptation (AMA)
Option:
Function:
The AMA function optimizes dynamic motor
performance by automatically optimizing the
advanced motor
to
) while the motor is
stationary.
[0]
*
Off
No function
[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
.
[2]
Enable
reduced AMA
Performs a reduced AMA of the stator
resistance R
s
in the system only. Select this
option if an LC filter is used between the
frequency converter and the motor.
NOTE
1-29 Automatic Motor Adaptation (AMA)
will not have effect
when
= [1] PM, non salient SPM.
Activate the AMA function by pressing [Hand on] after
selecting [1] or [2]. See also the item
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 frequency converter is ready for
operation.
NOTE
•
For the best adaptation of the frequency
converter, run AMA on a cold motor
•
AMA cannot be performed while the motor is
running
NOTE
Avoid generating external torque during AMA.
NOTE
If one of the settings in parameter group 1-2* Motor Data
is changed,
to
,
the advanced motor parameters, will return to default
setting.
This parameter cannot be adjusted while the motor is
running.
NOTE
Full AMA should be run without filter only while reduced
AMA should be run with filter.
See section:
Application Examples > Automatic Motor
Adaptation
in the Design Guide.
3.3.4 1-3* Adv. Motor Data
ameters for advanced motor data. The motor data in
to
must match
the relevant motor in order to run the motor optimally.
The default settings are figures based on common motor
ameter values from normal standard motors. If the motor
ameters are not set correctly, a malfunction of the
frequency converter system may occur. If the motor data is
not known, running an AMA (Automatic Motor Adaptation)
is recommended. See the
Automatic Motor Adaptation
section. The AMA sequence will adjust all motor ameters
except the moment of inertia of the rotor and the iron loss
resistance (
1-36 Iron Loss Resistance (Rfe)
130BA375.11
R
2
P 1-30
R
1s
X
h
P1-35
R
1
X
2
X
1
U
1
I
1
Illustration 3.1 Motor equivalent diagram for an asynchronous
motor
1-30 Stator Resistance (Rs)
Range:
Function:
Size
related
*
[ 0.0140 -
140.0000 Ohm]
Set the stator resistance value.
Enter the value from a motor data
sheet or perform an AMA on a
cold motor. This parameter cannot
be adjusted while the motor is
running.
Parameter Description
VLT
®
HVAC Drive Programming Guide
40
MG.11.CC.02 - VLT
®
is a registered Danfoss trademark
3
3
