Danfoss VLT FC 100 Series Programming Manual page 45

Parameter Description
the motor at 5 Hz in forward direction and the display
shows: "Motor is running. Check if motor rotation direction
is correct. Press [Off] to stop the motor". Pressing [Off]
stops the motor and resets 1-28 Motor Rotation Check. If
3 3
motor rotation direction is incorrect, two motor phase
cables should be interchanged.
WARNING
Line power must be removed before disconnecting motor
phase cables.
1-29 Automatic Motor Adaptation (AMA)
Option:
[0] Off
*
[1] Enable
complete
AMA
[2] Enable
reduced AMA
NOTE!
1-29 Automatic Motor Adaptation (AMA) will not have effect
when 1-10 Motor Construction = [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 Adjustable frequency drive is
ready for operation.
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
NOTE!
Avoid generating external torque during AMA.
3-18
®
VLT HVAC Drive Programming Guide
Function:
The AMA function optimizes dynamic motor
performance by automatically optimizing the
advanced motor 1-30 Stator Resistance (Rs) to
1-35 Main Reactance (Xh)) while the motor is
stationary.
No function
Performs AMA of the stator resistance R
the rotor resistance R , the stator leakage
r
reactance X , the rotor leakage reactance X
1
and the main reactance X .
h
Performs a reduced AMA of the stator
resistance R in the system only. Select this
s
option if an LC filter is used between the
Adjustable frequency drive and the motor.
MG11CD22 - VLT
NOTE!
If one of the settings in parameter group 1-2* Motor Data
is changed, 1-30 Stator Resistance (Rs) to 1-39 Motor Poles,
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.
3.3.5 1-3* Adv. 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
,
S
parameter values from normal standard motors. If the
motor parameters are not set correctly, a malfunction of
2
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. The AMA sequence will adjust all
motor parameters except the moment of inertia of the
rotor and the iron loss resistance (1-36 Iron Loss Resistance
(Rfe)).
P 1-30
I
1 R
S
U
1
Figure 3.4 Motor Equivalent Diagram for an Asynchronous
Motor
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X
X
1
2
R X
R
1s h
1
P1-35