E4P encoder - Chief Delphi

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E4P encoder

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14-02-2011, 12:02

Hugh Meyer Hugh Meyer is offline

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FRC #1741 (Red Alert Robotics)

Team Role: Mentor

Join Date: Feb 2009

Rookie Year: 2008

Location: Greenwood Indiana

Posts: 158

Re: E4P encoder

When the encoder is powered it will have a red glow from the LED inside on the chip. You need to remove the cover to see the light. It isn't very bright, but it is definitely visible. If it is not lit, then your wiring is suspect.

The best way to know if they are working is with a two channel oscilloscope. If you have one, connect each channel on the scope to the A and B channel outputs from the encoder. You should see two square waves 90 degrees out of phase.

-Hugh

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