Wiring AMT10 series encoders to SRX Breakout?

Technical Electrical
1

Hi all,

We’ve tried to wire the AMT10 series encoders by CUI, which were provided in FIRST choice this year.

http://www.cui.com/product/resource/amt10-v.pdf

It seems that there are three signal channels:
A, B, and X (Index)

From my understanding, Channel A and B can be used independently if you just want RPM, and not direction. A and B together allow for direction and RPM, as B is out of phase from A. While Index serves as a reference for A and B, and is used as “verification.”

Since the SRX Encoder breakout board (http://www.vexrobotics.com/217-4398.html)
does not have X as an input, would it be okay to forgo the Index, and just use channel A and B.

The application is to determine RPM for mecanum drive,

Would it be better/easier to just use roboRIO wiring for this?

Thanks!

2

You can ignore the index line for your purposes.
It just gives one tick per full revolution as a reference point if desired. A home point if you will.

A/B/+/gnd

3

Ah, I suspected as much.

I will confirm tomorrow with an O-Scope.

Thanks for the quick reply.