Re: Yaskawa servo nice motor?

Arvid, if you are using the Sigma series drives, they have RS232
ports on them. I have the programing software along with some drives,
motors, and cables for sale.

http://groups.yahoo.com/group/CNC_for_sale/message/284

If you only need the software, I could email you a copy for free.

Best Regards,

~petev

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "bitnick78"
<arvidpublic@h...> wrote:

> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...>

wrote:

> >
> >
> > bitnick78 wrote:
> >
> > >Hi group!
> > >
> > >Would this be a good motor for a bridge type milling machine
> intended
> > >for wood and light aluminium work? To be coupled to a lead screw
> with
> > >lead of 5 mm/turn.
> > >
> > >* 3-ph 200 watt PM
> > >* cont/peak torque: 0.64/1.91 Nm
> > >* winding resistance: 3 Ohm
> > >* cont/peak current: 2.0/6.0 A
> > >* torque constant: 0.355 Nm/A
> > >* rated voltage: 200 V (don't know why this is specified, isn't
> > >current the important thing?)
> > >* voltage constant: about 80 V peak-to-peak / 1000 RPM (I

measured

> > >this by spinning the motor at about 1000 RPM and watching the
> voltage
> > >on an oscilloscope)
> > >* encoder: 2000 counts/rev
> > >
> > >
> > Certainly a nice motor, although 200 W peak is a bit weak. 200 W
> > continuous should be better. But, do you have a suitable driver

or

> > servo amp for this motor? Don't price it from Yaskawa, you'll

have

> > a heart attack! 3 of them would run close to ten grand!
> >
> > Jon
>
>
> The motor is rated for 3000 RPM with full torque. 3000 RPM = ~314
> rad/s. 314 rad/s * 0.64 Nm = ~200 W, so I guess this is the

continous

> output power.
>
> I think I can get servo packs for a good price, the problem is I

also

> need a special programming device (Yaskawa calls it a "Digital
> Operator") to be able to set up the servo amp. In the manual for

the

> Servo pack/motor, it is mentioned that programming could also be

done

> with a computer, but I cannot find anything about how this is done.
> I do however have the pinout of the connector, and if I had a
> specification on the protocol used I'm sure I could build a level
> translator between RS-232 and the Servo Pack. Programming could

then

> be done via a terminal window.
>
> Do anyone have this specification, or know where I can find it?
>
> Arvid