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Unread 16-04-2013, 09:38
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Hugh Meyer Hugh Meyer is offline
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FRC #1741 (Red Alert Robotics)
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Re: Multiple Encoder issues

Check the A & B signals with a scope. You should see two square waves that are 90 degrees out of phase. If they are on the ragged edge of right you will get the sequence you described. Be sure the encoder wheel is paired with the correct sensor base. The different line count requires a different sensor to maintain the 90 degree phase response. The distance the encoder wheel is from the sensor also will affect this. Use the special tool US Digital provides to set the distance. End play or shaft run out will also cause trouble.

-Hugh