Emerson Epsilon Eb Series Reference Manual page 166

2. Move to the Analog tab and find the "Analog Input" parameter.
3. Using your simulator adjust the analog command until the value of this parameter is
approximately 0 volts.
4. Enable the drive. It should not move. If the drive faults at this point you most likely have
a wiring problem (see "Step 1: Motor Wiring").
5. Gradually increase the analog command voltage. The motor should start moving with a
voltage level somewhere between 2 and 5 volts. Verify that the direction of motion is
CW.
6. If there is no motion or CCW motion, there is a problem with encoder alignment
parameters. If the motor moves 30 to 90 ° and then stops, there could be one of several
problems:
• The number of Motor Poles has been specified incorrectly.
• The Encoder Lines Per Revolution parameter has been specified incorrectly
• The motor terminals have been mis-identified (see "Step 1: Motor Wiring").
Commutation Accuracy Test
This test will determine how accurately the encoder Z channel has been specified. It requires
that the motor be connected and ready to run but it will be spun by the drill motor while in
Torque mode with a zero torque command.
1. Disable the drive.
2. Set the Torque Limit to 0.
3. Make the Torque Limit input function always active.
4. Enable the drive.
5. Select "View Motor Parameters" from the Tools menu so you can monitor the
Commutation Voltage.
6. Spin the motor clockwise 500 to 1000 RPM, then counter-clockwise at the same speed.
The Commutation Voltage should be <10 percent. If the Commutation Voltage is higher
than 10 percent, the Motor Encoder Marker Angle was incorrectly specified and should
be re-tested.
7. Reset the Torque Limit and the Torque Limit Enable input function to their previous
settings.
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User Defined Motors
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