Danfoss VLT HVAC Drive FC 102 Operating Instructions Manual page 83

How to Programme
1-03 Torque Characteristics
Option: Function:
AEO feature adapts the voltage exactly to the
current load situation, thereby reducing
energy consumption and audible noise from
the motor. To obtain optimum performance,
set the motor power factor cos phi correctly.
This value is set in 14-43 Motor Cosphi. The
parameter has a default value which is
automatically adjusted when the motor data
is programmed. These settings ensure
optimum motor voltage. If the motor power
factor cos phi requires tuning, an AMA
function can be carried out using
parameter 1-29 Automatic Motor Adaptation
(AMA). It is rarely necessary to adjust the
motor power factor parameter manually.
[3] Auto Energy For optimum energy-efficient speed control
Optim. VT of centrifugal pumps and fans. Provides a
*
voltage optimised for a squared torque load
characteristic of the motor. In addition, the
AEO feature adapts the voltage exactly to the
current load situation, thereby reducing
energy consumption and audible noise from
the motor. To obtain optimum performance,
set the motor power factor cos phi correctly.
This value is set in 14-43 Motor Cosphi. The
parameter has a default value and is
automatically adjusted when the motor data
is programmed. These settings ensure
optimum motor voltage. If the motor power
factor cos phi requires tuning, an AMA
function can be carried out using
parameter 1-29 Automatic Motor Adaptation
(AMA). It is rarely necessary to adjust the
motor power factor parameter manually.
NOTICE
Parameter 1-03 Torque Characteristics has no effect when
1-10 Motor Construction=[1] PM, non-salient SPM.
NOTICE
For pumps or fan applications where the viscosity or
density can vary significantly, or where excessive flow
can occur, select [2] Auto Energy Optim. CT.
1-29 Automatic Motor Adaptation (AMA)
Option: Function:
NOTICE
This parameter cannot be adjusted
while the motor is running.
The AMA function optimises dynamic motor
performance by automatically optimising the
MG11F502
Operating Instructions
1-29 Automatic Motor Adaptation (AMA)
Option:
[0] Off
*
[1] Enable
Complete
AMA
[2] Enable
Reduced
AMA
NOTICE
Parameter 1-29 Automatic Motor Adaptation (AMA) has no
effect when 1-10 Motor Construction=[1] PM, non-salient
SPM.
Activate the AMA function by pressing [Hand On] after
selecting [1] Enable complete AMA or [2] Enable reduced
AMA. See also the section Automatic Motor Adaptation in
the design guide. After a normal sequence, the display
reads: Press [OK] to finish AMA. After pressing [OK], the
frequency converter is ready for operation.
NOTICE
•
•
NOTICE
Avoid generating external torque during AMA.
NOTICE
If one of the settings in parameter group 1-2* Motor
Data is changed, 1-30 Stator Resistance (Rs) to 1-39 Motor
Poles return to default settings.
NOTICE
Only run complete AMA without filter, and only run
reduced AMA with filter.
See section: Application Examples > Automatic Motor
Adaptation in the design guide.
Danfoss A/S © 08/2014 All rights reserved.
Function:
advanced motor parameters (1-30 Stator
Resistance (Rs) to 1-35 Main Reactance (Xh)) at
motor standstill.
No function.
Performs AMA of the stator resistance R
rotor resistance R , the stator leakage
r
reactance X , the rotor leakage reactance X
1
and the main reactance X
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
frequency converter and the motor.
For the best adaptation of the frequency
converter, run AMA on a cold motor.
AMA cannot be performed while the motor is
running.
, the
S
2
.
h
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