[efrainlenis]

good morning

I have a nema 23 model 57BYGHM004-A with 8 wire, no starting and over heat.

http://www.cnczone.com/forums/attach...d=358460&stc=1

this motor is conected on a driver DM542A acording this diagram:
http://www.cnczone.com/forums/attach...d=358462&stc=1

why no start my motor and why over heat??

[aarggh]

Your steppers have 8 wires but you've provided a diagram showing 4 wires connected, so how are you wiring the steppers?

cheers, Ian

[rodw]

I have no problem running 8 wire NEMA 34's with the same DM542a stepper controllers so I'd say your wiring is wrong.. Review your wiring against the stepper motor documentation. There are 2 ways to wire them in, both require joining wires so you only have 4 physical connections.

[machdrives]

As you have eight leads, each of the two phases is split into two windings. You can wire these in serial or parallel to match your driver capability.
Here is a good reference on the different winding configurations and how to identify the leads.
Identify leads on a 8 wire stepper motor | Victor Leung
Hope this helps.
David