Danfoss VLT AutomationDrive FC 300 Operating Instructions Manual page 42

4 How to Programme
4
1-29 Automatic Motor Adaptation (AMA)
Option:
[0] * OFF
[1] Enable complete AMA
[2] Enable reduced AMA
Note:
• For the best adaptation of the frequency converter, run AMA on a cold motor.
• AMA cannot be performed while the motor is running.
• AMA cannot be performed on permanent magnet motors.
NB!
It is important to set motor par. 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.
NB!
Avoid generating external torque during AMA.
NB!
If one of the settings in par. 1-2* is changed, par. 1-30 to par. 1-39, the advanced motor parameters, will return to default setting.
42
Jog
Preset ref bit 0
Preset ref bit 1
Preset ref bit 2
Freeze reference
Freeze output
Speed up
Speed down
Set-up select bit 0
Set-up select bit 1
Catch up
Slow down
Pulse input
Ramp bit 0
Ramp bit 1
Mains failure inverse
DigiPot Increase
DigiPot Decrease
DigiPot Clear
Reset Counter A
Reset Counter B
Function:
The AMA function optimizes dynamic motor performance by automatically optimizing the advanced
motor parameters (par. 1-30 to par. 1-35) at motor standstill.
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.
This parameter cannot be adjusted while the motor is running.
Performs AMA of the stator resistance R
the rotor leakage reactance X and the main reactance X
2
FC 301: The complete AMA does not include X
determined from the motor database. Par. 1-35 may be adjusted to obtain optimal start perform-
ance.
Performs a reduced AMA of the stator resistance R
filter is used between the drive and the motor.
MG.33.AC.02 - VLT is a registered Danfoss trademark
®
VLT AutomationDrive FC 300 Operating
, the rotor resistance R , the stator leakage reactance X
S r
.
h
measurement for FC 301. Instead, the X
h
in the system only. Select this option if an LC
s
Instructions
[14]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[28]
[29]
[32]
[34]
[35]
[36]
[55]
[56]
[57]
[62]
[65]
,
1
value is
h