Re: Hardinge HNC resolver - encoder signal conversion

Hey Matt.
Did you get around to putting the encoders on your Hardinge yet?
If so, what did you use and how is it working?
Thanks,
John
--- In CAD_CAM_EDM_DRO@yahoogroups.com, Matt Shaver <mshaver@e...>
wrote:

> I'm about to do the same thing to an HNC, but I've decided to

replace the

> resolvers with encoders, rather than convert the resolver signal

to

> quadrature. The reason is cost, converter boards cost ~$300/axis...
>
> Matt
>
> On Saturday 17 May 2003 15:10, machinist24540 wrote:
> > Hello, All.
> > I have been wanting to upgrade my Hardinge HNC chucker for some

time

> > now. The problem I have run in to is the resolvers. No one seem

to

> > have a kit for to accept feedback from them and centroids kit is
> > $17K. Far more than is feasible for me. I spoke with a gentelman
> > yesterday and he said that you could buy a converter that would
> > convert the resolver signal to quadrature encoder signal. Then I
> > could run a servo driver as the lathe has servo motors.
> > Has any one ever tried this? Any input is welcome.
> > Thanks in advance,
> > John