Jump to content
OMRON Forums

Motor[x].FeFatal tripping when Following error below Motor[x].FatalFeLimit only when jogging


sdefisher
 Share

Recommended Posts

  • I have a motor that is tripping a fatal following error fault when the observed following error is well below the Motor[x].FatalFeLimit.  I've used the plot/gather system to prove that the following error is 25% of the limit when the FeFatal error kicks on. This only occurs when using a handwheel (master follower) or jog commands/jog ribbon. If I grab the axis and push it by hand, it trips the FeFatal error at the correct limit value.
  • The motor jogs fine with the limit set to 0 (disabled). So I know it's not a drive fault kicking the motor off. Any reccomended troubleshooting steps?

 

 

Link to comment
Share on other sites

  • Replies 3
  • Created
  • Last Reply

Top Posters In This Topic

13 hours ago, steve.milici said:

Make sure the phase frequency is greater than the servo frequency and gather on phase. I suspect that the jog ribbon and master following could be producing spikes in FE that servo rate gather does not see.

That did it. There is a very very short spikes in the feedback that is sub millisecond. My previous gather settings weren't fast enough to catch it. Looking into the wiring/feedback cables now. Is there a time component/setting to any of the feedback settings? Some CNC's have a time constant for controlling following error faults. Although I think that would just be a band aid in this case.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share


×
×
  • Create New...