Stepping motor question

  • Thread starter alhughes
  • Start date
  • #1
1
0

Main Question or Discussion Point

Where I work we have 12 amp 1.8 degree stepping motors, occasionaly a motor will go weak, we change motors and all is good, when i strip the motors to check, the bearings are fine, the windings are fine, correct resistance, no insulation breakdown to earth or between windings, so what causes the weakness? the only thing I can't check is the magnetism of the rotor, any clues?
 

Answers and Replies

  • #2
437
0
A possibility is a single shorted turn or two. That can soak up a lot of energy but not change the resistance much.
 

Related Threads on Stepping motor question

  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
12
Views
9K
  • Last Post
Replies
5
Views
2K
Replies
4
Views
1K
  • Last Post
Replies
3
Views
483
Replies
1
Views
953
Replies
1
Views
4K
  • Last Post
Replies
5
Views
736
  • Last Post
Replies
5
Views
6K
  • Last Post
Replies
10
Views
4K
Top