×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

Fisher DVC 6000 SERIES PWB COMMUNICATION FAILURE WITH DCS

Fisher DVC 6000 SERIES PWB COMMUNICATION FAILURE WITH DCS

Fisher DVC 6000 SERIES PWB COMMUNICATION FAILURE WITH DCS

(OP)
I am working with reliance and in our plant we are facing frequent PWB POWER RESET issues in DVC 6000 series positioners. During this power RESET positioner will stop communicating with DCS. We are not exactly getting the root cause why this PWB is going into power RESET mode and why it's stopping communicating with DCS. Looking forward for proper solution and guidance and the same highly appreciated.

RE: Fisher DVC 6000 SERIES PWB COMMUNICATION FAILURE WITH DCS

I have no experience with that positioner, but if I were troubleshooting this, I'd start with asking the manufacturer if they're aware of an issue, because when multiple devices of the same model have the same problem, it's a fair assumption that they're likely the same age, many times the same production lot. So it's worth asking the manufacturer about any firmware or production issues from that era, supported by a list of the model/serial numbers to establish the dates of production.

And I while I was asking the factory guy about production issues, I'd ask what PWB POWER RESET means (if it's a positioner error code, it could be host system error code, you don't say). It sounds to me like it means a loss of power and subsequent re-initialization of the unit, but I'm speculating, and it helps in troubleshooting to know exactly what the error code means. If it is a host system error code, what are the error codes the positioners have logged?

Once I'd ruled out a common-mode 'vendor' problem, I'd add a couple columns to my model/serial number spreadsheet with tag locations and times/dates of failure and look for a pattern.

When something happens to multiple positioners the question is, what do these multiple positioners have in common?
Same AO card? Same DC power supply? Same remote terminal panel in the marshalling panel?

Do the times and dates of failure show any pattern, like Monday morning at 6AM sharp 3 of them drop out, same time when the auxiliary compressor starts up?

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! Already a Member? Login



News


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