Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


SSI encoder testing

SSI encoder testing

SSI encoder testing


I'm looking for more info on SSI encoders. Specifically, What is needed to generate a clock signal and get bit data from the encoder.

I have a SSI encoder, spec sheets and pinout. I have tried using a 5v clock signal from a freq generator, but this does not work. Do I HAVE to have a specific module/master to send a clock signal to the enocoder?

Thanks in advance,

Any help is appreciated.

RE: SSI encoder testing

Heres a link to the manufacturer, hopefully this helps.


The specific model is a CEV58M

Everything I have gathered seems to say I can simply apply control voltage (24v), Pulse a constant 5v 100khz +- square wave clock signal and see bit data transfer when shaft is moved on the data + pin.


I switched to using an Arduino board to supply a clean 5v, 100khz clock. When I power the encoder, my data line goes high (5v) as it should. But I cannot get any data to trigger when the encoder shaft is moved. It does trigger when I disconnect the encoder and the data goes low again, so I'm certain my scope is setup properly.

What am I missing here?

RE: SSI encoder testing

Your search yielded no results

"Why not the best?"
Jimmy Carter

RE: SSI encoder testing

Thanks for trying- but I finally beat my head off of this enough that I figured out what I was doing wrong!

1.- Apparently my Freq generator is not accurate enough?

2.- My Arduino worked- ONCE I figured out that I had a clock of 100HZ... Not 100Khz! I managed to get about 70Khz using the arduino, which was good enough to read data signals.

I retested with my Freq Generator, and it would not work at those speeds.


Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close