Re: [CAD_CAM_EDM_DRO] Analog Output controller?

Just a small correction Jon,
These are Brushed motor drives and won't drive brushless.
Also they won't accept encoder inputs...just tachs or hall sensors.
Cheers,
Brad

----- Original Message -----
From: "Jon Elson" <elson@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, September 11, 2004 12:12 AM
Subject: Re: [CAD_CAM_EDM_DRO] Analog Output controller?


> jracingrc wrote:
>
> >Hi guys,
> >
> >I have 3 of these AMC Servo Amplifiers B30A8:
> >http://www.a-m-c.com/products/trap.htm
> >
> >I was wondering, how do I get these to control the motor? I think
> >they need an analog output controller to send a +/- 10V command
> >signal, but I'm really in the dark about these things. I've
> >seen "motion controllers" on ebay, but I'm not sure how I go about
> >connecting those things to the AMC amplifiers I have. Are there any
> >relatively inexpensive controllers that I can use with these
> >amplifiers??
> >
> >
> OK, these are analog servo amplifiers for brushless motors (but they can
> drive brush motors, too.) Do you have the motors?
>
> >Ideally I'd like to have closed loop, where the computer knows the
> >position of the motors, but open loop like the stepper systems is
> >fine too.
> >
> >
> >
> Well, I have a product that will do it. It is called the PPMC, and my web
> page is http://jelinux.pico-systems.com/PPMC.html
>
> It has an encoder counter board, a DAC board to produce the velocity
> command signals to the servo amp, and a digital I/O board for limit
> switches and spindle and coolant control.
>
> This hardware is supported by EMC, which does accept position information
> from the encoders on the motors.
> See http://www.linuxcnc.org/ for more info on EMC.
>
> Jon
>
>
>
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