Lenze S94P01G Position Servo - Manual (Page 36)

S94P01G
34
Interface
4.6.2 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 the previous section “Setting custom motor
parameters”. If the motor file you are trying to autophase already exists,
simply load it as described under “Using a custom motor” at the beginning of
this section.
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. 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.
5. Click OK 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 “Proceed” and wait until autophasing is completed.
NOTE
If there is a problem with the motor connection, hall sensor connection or resolver
connection, MotionView will respond with an error message. Problems commonly
occur with power, shield and ground terminations or when an improper cable is
used. 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.
8. Click “Save File” to save the completed motor file (you can use the same
filename as you use to save initial data in step 1) and click OK to load the
motor data to the drive.
4.6.3 Custom Motor Data Entry
A Custom Motor file is created by entering motor data into the “Motor Parameters”
dialog box. This box is divided up into the following three sections, or frames:
Electrical constants
Mechanical constants
Feedback
When creating a custom motor you must supply all parameters listed in these sections.
All entries are mandatory except the motor inertia (Jm) parameter. A value of 0 may be
entered for the motor inertia if the actual value is unknown.