Re: Yaskawa Servo Pack/Motor compatibility

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

> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "bitnick78"
> > I have bought an SGM-02A3 Servo motor and a SGDE-02AS Servo Pack
> > (both 200W, both used). Now it turns out these don't work

together

> > (the servo pack being a budget version which expects 1024 P/R

from

> > the motors, while the motor encoder is 2048 P/R). (The # or

pulses

> > has to be correct between motor and servo pack for the

commutation

> to
> > work on these 3-ph motors.)
>
> Arvid,
> US Digital sell a programable encoder count divider
> http://www.usdigital.com/products/edivide/ for $40. Cheap way to

get

> everything to play together.
>
> Roger

Thanks for the tip, but it won't work. From the webpage: "The index
signal from the encoder is simply passed straight through from input
to output with no change."

These motor have a special index (encoder C phase) signal, that also
has to be processed for this to work.

Arvid