RE: [CAD_CAM_EDM_DRO] Yaskawa servo nice motor?

Hmmm .64 Nm is only about 90 oz in continuous torque. That's not much
for some Bridgeport type machines unless you used a 4 or 5 to 1
reduction using timing belts. It also requires a brushless servo amp
which are generally pricey.
Dan

-----Original Message-----
From: Jon Elson [mailto:elson@...]
Sent: Thursday, November 06, 2003 7:58 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: 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
>
>