Emco 5PC steppers

**Ian Hart** · 20-02-2010

Hi
Can anyone tell me what the colour coding of the original Emco 5PC steppers is?
I am installing new drivers but can't find the needed information.

Ian Hart

**irving2008** · 20-02-2010

Can't find that info anywhere, but if you say what the current colour coding is we might be able to help...

ps Welcome to the forum Ian

**Ian Hart** · 21-02-2010

Thanks, the motors are Warner Electric Brake and Clutch - SM072-0060-KN and have eight wires:-
White & Brown; White & Orange; White & Yellow; White & Red; Brown; Orange; Yellow; Red.

I am installing ArcEuro Trade stepper drivers into my Emco 5PC.

Hopefully

Ian Hart

**John S** · 21-02-2010

Originally Posted by Ian Hart

Thanks, the motors are Warner Electric Brake and Clutch - SM072-0060-KN and have eight wires:-
White & Brown; White & Orange; White & Yellow; White & Red; Brown; Orange; Yellow; Red.
Ian Hart

Easy,
Brown, orange, yellow and red are the ends of the 4 coils, the white and colour are the opposite ends.
If you are wiring in parallel join red and brown for 1 connection.
White/red and white brown for term 2
Orange and yellow for term 3
White/orange and white/yellow for term 4

**Ian Hart** · 21-02-2010

Thanks
That's really helpful. Interesting that you have a CONECT mill. I have replaced the X & Y steppers on mine and find it very good for my limited expectations. I also believe it to be a RISHTON mill, having seen photos on the big machinery web-site near Nottingham? (can't remember the name - age!!)

Ian Hart

**John S** · 21-02-2010

Lathes.co.uk
Run by Tony Griffith from Wardlow near Buxton

**Ian Hart** · 21-02-2010

Thanks

Near is subjective, my wife would say.

Ian Hart

**Ian Hart** · 25-02-2010

John
I assumed that connection 1 is +A, 2 is -A, 3 is +B and 4 is -B and wired my Z-axis driver accordingly. I am not able to jog the axis and it is possible to turn the Z-axis stepper against some small resistance when it is powered. Any thoughts or suggestions?

Ian Hart