Thread: E4P encoder
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Unread 14-02-2011, 12:02
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Hugh Meyer Hugh Meyer is offline
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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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