×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Jobs

ACS355 Overvoltage fault

ACS355 Overvoltage fault

ACS355 Overvoltage fault

(OP)
Does anyone have suggestions for ACS355 VFD that intermittently faults on overvoltage?
At the time of the last fault voltage was 831 volts. This fault is happening once every couple of days.

RE: ACS355 Overvoltage fault

What is the load? What is the voltage? What HP? Do you ramp down the speed quickly?

Bill
--------------------
"Why not the best?"
Jimmy Carter

RE: ACS355 Overvoltage fault

(OP)
Blower Motor
497VAC Input
20hp
30 seconds deaccel time

DC bus voltage during running is observed around 680

RE: ACS355 Overvoltage fault

Do you have an idea of what is happening when it trips on OV? As in during Run, during Decel, while Off?

"Will work for (the memory of) salami"

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!


Resources