Danfoss VLT FC 100 Series Programming Manual page 41

®
VLT HVAC Drive Programming Guide
1-28 Motor Rotation Check
Option:
* Off
[0]
[1] Enabled
Pressing [OK], [Back] or [Cancel] will dismiss the message and display a new message: "Press [Hand On] to start the motor. Press [Cancel] to abort".
Pressing [Hand On] starts the motor at 5Hz 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 the Motor Rotation Check parameter. If motor rotation direction is incorrect,
two motor phase cables should be interchanged. Important:
Mains power must be removed before disconnecting motor phase cables.
1-29 Automatic Motor Adaptation (AMA)
Option:
*
OFF
[0]
[1] Enable complete AMA
[2] Enable reduced AMA
Activate the AMA function by pressing [Hand on] after selecting [1] or [2]. See also the section
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
Function:
Following installation and connection of the motor, this function allows the correct motor rotation direction to
be verified. Enabling this function overrides any bus commands or digital inputs, except External Interlock and
Safe Stop (if included).
Motor Rotation Check is not active.
Motor Rotation Check is enabled. Once enabled, Display shows:
"Note! Motor may run in wrong direction".
Function:
The AMA function optimizes dynamic motor performance by automatically optimizing the advanced motor pa-
rameters (par. 1-30 to par. 1-35) while the motor is stationary.
No function
performs AMA of the stator resistance R
leakage reactance X and the main reactance X
2
performs a reduced AMA of the stator resistance R
between the frequency converter and the motor.
- application example.
MG.11.C5.02 - VLT ® is a registered Danfoss trademark
3. Parameter Description
, the rotor resistance R , the stator leakage reactance X
S r
.
h
in the system only. Select this option if an LC filter is used
s
Automatic Motor Adaptation
, the rotor
1
. After a normal sequence,
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3