Re: ac servo motors

Doesn't every manufacturer have nowadays a version which accepts
step&dir control.
I've used Mitsubishi's servos and drives as a package.(MR-C or MR-J
series)
http://www.mitsubishi-automation.de/products.html
Everything works fine if you can deal with the noise due to drives.

Terveisin,
Juha


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "shockley333"
<shockley33@h...> wrote:

> Hi all.
>
> I have to build a precise positioning device.
>
> I am experineced with stepper, but now going for servos.
>
> Having actually decided for dc brush, i have although guessed about

ac

> induction.
>
> There is a plenty of rumors about using them for cnc, and in my case
> another major reason is great availability of small power commodity
> units at a good price.
>
> But what about drives? There are a lot of inverter ac speed
> controllers, but for positioning...
>
> I have just got a glance at Advanced Motion Controls drives, but I
> don't know if I understood well.
>
> Are these drives capable of position control of an ac induction

motor?

>
> Has anyone experience of such devices?