Need Help! In over my head- again! - CNCzone.com-The Largest Machinist Community on the net!

2_jammer · #1 04-12-2010, 09:05 PM

Hello All-
I have a small 3 axis router that uses stepper motors that I have been playing with for some time now, and I would like to upgrade to servos. So I bought some BLDC servos off the bay because I thought everyone made drives for these which I found out isn't exactly the case. So I went back to the 'bay and found a 3 axis BLDC driver made by AMC: BD30A8. What I didn't realize is the these are PWM driven? So now I'm not sure if these can even be used in my application. Can someone explain to me if I can use these, and if I can use them, what I need to do? Please see the pdf attachment. Thanks for your time.

Al_The_Man · #2 04-12-2010, 09:36 PM

What type of command signal are you using? If step/dir then I think you are out of luck, these are PWM only.
Al.

2_jammer · #3 04-12-2010, 09:44 PM

Thanks for the fast response. I haven't worked that part out yet- I wanted to use a break out board. What is PWM and how would these driver boards be used- i.e. what application?

Al_The_Man · #4 04-12-2010, 09:46 PM

Any controller that outputs a PWM signal, rather than step/dir or +-10v analogue.
Al.

2_jammer · #5 04-19-2010, 09:36 PM

I think I found a controller board to run these amps- Thanks for your help!

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