Easimill stepper wires

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ClitheroeKate
Posts: 19
Joined: Sat 23 Mar , 2013 22:11 pm
Hardware/Software: Denford Easymill 3, 1984, i believe it is totaly origonal. The spindle motor is marked as 1 hp, 3 phase with four pulleys for speed changes. 3 phase coolant pump. 1 board in the control is marked as PNC3. There are a few buttons missing on the control box and the tape drive dosen't work. The previous owner ran it off 3 phase and as I haven't got three phase at home I'm looking to convert it to single phase and up-date/up-grade it in the process. I am however a complete newbie.

Easimill stepper wires

Post by ClitheroeKate » Sun 23 Mar , 2014 20:31 pm

I've got to the stage in my build where I am connecting the stepper motors to the new drivers I have bought. The manual for the Leadshine stepper drivers asks for wires labled A+, A-, B+ and B-, while the Easimill drawing number A3-200014 shows the wires labled as 1A, 1B, 2A and 2B with wire colours as red, red and white, black, black and white respectivley

On the Easimill drawing 1A and 1B are at opposite ends of one winding and B1 and B2 at the opposite ends of a second. Is it true to say that -

A+ = 1A
A- = 1B
B+ = 2A
B- =2B

Attached is a photo showing the relevent diagrams from the drawing and stepper driver manual.

Any advice would, as usual, be greatly appreciated.
Clitheroekate.
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20140323_191806.jpg (724.84 KiB) Viewed 7362 times

Martin
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Re: Easimill stepper wires

Post by Martin » Sun 23 Mar , 2014 20:56 pm

Yes. It's they are the same . If it turns the wrong way invert 1A & 1B.

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