[ka67_72]

My only CNC/machining experience has been with a 4-axis hobby cnc stepper setup on a homebuilt router table. I have recently purchased 5 Advanced Motion B25A40 brushless dc drives http://www.a-m-c.com/download/legacy/b25a40k.pdf to run a Bridgeport I'm converting. From what I understand, I need about 1000 oz-in to run my X, Y, and Z. I have a couple Baldor "big mho" servos I picked out of a scrap pile years ago. They are 192 oz-in but I think they will work for my rotary tables. My concern is, the amps are 120-400V dc and the motors are 24V max. I'm assuming the amps put out up to whatever I put in which will be 120. Can I crank the output voltage down enough to run these motors? Can I use a voltage divider?

Thanks,
Kevin

[Al_The_Man]

My concern is, the amps are 120-400V dc and the motors are 24V max.

I believe you are referring to Voltage not current (amps)?
The drives are in fact 120 to 400volts DC then your 24vdc motors are not suitable.
It is possible to apply drive voltage up to 150%max. of motor voltage but this would be too extreme.
Al.

[ka67_72]

Would it be a bad idea to try using a voltage divider to drop the output voltage down?

Thanks,
Kevin

[Al_The_Man]

That wouldn't really work, best look for different motors.
Al.

[ka67_72]

Thanks