[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.
Activate the AMA function by pressing [Hand on] after selecting [1] or [2]. See also the section
Automatic Motor Adaptation
. 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 spinning.
NB!
It is important to set motor par. 1-2* Motor Data 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.
NB!
Avoid generating external torque during AMA.
NB!
If one of the settings in par. 1-2* Motor Data is changed, par. 1-30 to par. 1-39, the advanced motor parameters, will return to default
setting.
This parameter cannot be adjusted while the motor is running.
See section
Automatic Motor Adaptation
- application example.
8.2.4. 3-0* Reference Limits
Parameters for setting the reference unit, limits and ranges.
3-02 Minimum Reference
Range: Function:
0.000 Unit
*
[-100000.000 – par.
3-03]
Enter the Minimum Reference. The Minimum Reference is the lowest value obtainable by summing all references.
3-03 Maximum Reference
Option: Function:
[0.000 Unit]
*
Par. 3-02 - 100000.000 Enter the Maximum Reference. The Maximum Reference is the highest value obtainable by summing all refer-
ences.
3-10 Preset Reference
Array [8]
0.00%
*
[-100.00 - 100.00 %]
Enter up to eight different preset references (0-7) in this parameter, using array programming. The preset ref-
erence is stated as a percentage of the value Ref
MAX
(par. 3-03
Maximum Reference
) or as a percentage of the
other external references. If a Ref
MIN
different from 0 (Par. 3-02
Minimum Reference
) is programmed, the preset
reference is calculated as a percentage of the full reference range, i.e. on the basis of the difference between
Ref
MAX
and Ref
MIN
. Afterwards, the value is added to Ref
MIN
. When using preset references, select Preset ref. bit
0 / 1 / 2 [16], [17] or [18] for the corresponding digital inputs in parameter group 5.1* Digital Inputs.
VLT
®
AQUA Drive
Operating Instructions
8. How to programme the frequency converter
MG.20.M4.02 - VLT
®
is a registered Danfoss trademark
73
8
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