Parameters, 4 autophasing – Lenze E94P PositionServo with MVOB User Manual

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Parameters

NOTE
Save the file even if the autophasing feature will be used and some of the final parameters are not
known. After autophasing is completed, the corrected motor file can be updated before loading it to
memory.

4.

Click [Close] to exit from the Motor Parameters dialog.

5.

MotionView will prompt to autophase/not autophase the custom motor. Answer [No] to cancel
without applying the changes made in the Motor database window. Answer [Yes] and the motor
dialog will be dismissed and the drive will start the autophasing sequence. Refer to section
5.2.4, Autophasing.

6.

If [Yes] is selected, the same motor selection dialog box will be displayed after autophasing is
complete. For motors with incremental encoders, the fields “B leads A for CW”, “Halls order”
and “inverted” will be assigned correct values. For motors with resolvers, the fields “Offset in
degree” and “CW for positive” will be assigned correct values.

7.

Click [Save File] to save the custom motor file and then click [Update Drive] to exit the dialog
box and load the data to the drive.

5.2.4 Autophasing

The Autophasing feature determines important motor parameters when using a motor that is not in
MotionView’s database. For motors equipped with incremental encoders, Autophasing will determine the
Hall order sequence, Hall sensor polarity and encoder channel relationship (B leads A or A leads B for CW
rotation). For motors equipped with resolvers, Autophasing will determine resolver angle offset and angle
increment direction (“CW for positive”).

To perform autophasing:
1.

Complete the steps in “Creating custom motor parameters”. If the motor file to be autophased
already exists, simply load it as described under “Using a custom motor”.

2.

Make sure that the motor’s shaft is not connected to any mechanical load and can freely rotate.

STOP!
Autophasing will energize the motor and will rotate the shaft. Make sure that the motor’s shaft is not
connected to any mechanical load and can freely and safely rotate.

3.

Make sure that the drive is not enabled.

4.

For Encoder it is not necessary to edit the field “Hall order” and check boxes “inverted” and “B
leads A for CW” as these values are ignored for autophasing. For Resolver it is not necessary to set
“Offset in degree” and “CW for positive”.

5.

Click [Update Drive] to dismiss motor selection dialog. MotionView responds with the question “Do
you want to perform autophasing?”

6.

Click [OK]. A safety reminder dialog appears. Verify that it is safe to run the motor then click [Yes]
and wait until autophasing is completed.

NOTE
If a problem occurs with the motor, hall sensor or resolver connections, MotionView will send an error
message. The source of the error is commonly the power, shield and ground terminations or the use
of an improper cable. Correct the wiring problem(s) and repeat steps 1 - 6.
If the error message repeats, exchange motor phases U and V (R and S) and repeat. If problems
persist, contact the factory.

7.

If autophasing is completed with no error then MotionView will return to the motor dialog box. For
motors with incremental encoders, the parameter field “Hall order” and the check boxes “inverted”,
“B leads A for CW” will be filled in with correct values. For resolver equipped motors, fields “Offset ”
and “CW for positive” will be correctly set.

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