... > >> From this, I conclude that this is a feedback based issue, such as the > > resolver or resolver converter somehow being behind and ahead on reporting > > its position, which leads to uneven rate of speed. > > > > Any ideas? > > Sounds like classic quadrature error in the resolver. Are you sure you have > the resolver wired correctly? > > I would check that the sine and cosine output peak amplitudes are the same > (peak amplitudes will be 90 degrees of shaft rotation apart for a 1X resolver) > > a 2 channel Scope is nice for this but if you dont have a scope a DVM will do > I agree with your diagnose, all the phenomena is coherent with that. It must be a resolver/resolver converter problem. If you are getting 360º count correctly for a 360º rotation of the resolver shaft, then its probably that it is the resolver the one that is not OK.
Another way to diagnose is to rotate the resolver shaft by known angles (lower than 360) like 90º so and look in EMC, if the count is or is not what it should be. Good luck, Javier ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
