Stepper's with eight leads can be wired in Series or Parallel. If it is miswired, a motor fault will result.
Here is one example...
Eight leads: A+ A+ lead Act+ A+ center tap Act- A- center tap A- A- lead B+ B+ lead Bct+ B+ center tap Bct- B- center tap B- B- lead
When wired correctly in Series, each of the leads will go to the appropriate pins on the motor connector of the drive. The A+ and A- center taps will be connected to each other. So will the B+ and B- center taps be connected to each other.
If one of the phases has a center tap and its corresponding lead swapped, a motor fault can occur. For example, if A+ and Act+ are swapped, the motor's phase will still measure correctly when you measure the resistance from A+ to A-. However, the drive does not like this.
Add Comment