Re: [CAD_CAM_EDM_DRO] Yaskawa servo nice motor?

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