Skewered brushes make no sense at all. I agree. Skewered armature prevents a rapid fall off of the magnetic field and thus yields less 'chatter' if you wish to name it like that. If you would turn the motor manually over then a 'regular' dc motor would go 'pop pop pop' over the field boundaries as you manually break the hold, and a skewered design is way less noticeable. Insert your own 'swosh swosh or whop whop' haha. You get the point...
And... keling is recommending the US encoders. And do not be afraid to plop any encoder onto any motor with the right shaft. Encoders have nothing to do with the motor characteristics. There is no adjustment of an encoder to a motor except for the rear shaft diameter and the max rpm so the poor thing doesn't fly apart. Regular encoders are a bad match for 320,000RPM air drills for example haha. That would be the fastest encoder in the world. parts will literally break through the barrier of sound... The encoder is a foreign object to the motor. The encoder is the right hand of the controlling drive and thus all encoder parameters have to be balanced according to resolution and drive it is connected to. I have no problem whatsoever viewing their website with Firefox, or Safari, or Opera, or IE.... check your setup.... Best of luck! Rainer PS:Be sure you have the right inertia match between servo and load. Or the tuning can become a nightmare. Which it is in any case, more or less, depending on the drive... Oh... and make sure that encoder and drive use differential signals. Cheap options are without the differential encoders and decoders.... It is mandatory in our environment to use differential signals. If not, just use steppers and forget about the servo as you loose all the precision benefits of the encoder while corrupting the signal with a bad choice of transmission. ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
