S, Igor Chudov piše: > On Thu, Feb 3, 2011 at 7:16 AM, Slavko Kocjancic<esla...@gmail.com> wrote: > >> That's not problem of friction at all!. >> >> The worst you have is 'sticky' axis. >> That means you need a lot more power to start to move axis and when already >> moving the required power is a way smaller. >> > No. > > This is an axis with friction. The opposing force dows not diminish with > movement. >
If that's true then you motor is underpowered. Ie need motor with higher torqe or you need to use some kind of gearing. if you assume that 1 is max power from emc then 0.1 should (must) be enought to move you axis. But you say 4Amps to move. I'm in doubt you have 40Amp servo. So as is is not good. Probably the easyest is to introduce some gearing. Do you need to turn this axis quick or just as indexer? Worm's are made (mostly) for slow drives. So gear your servo and you will see that problem dissapear misticaly. ... btw what is encoder resolution? For good result the encoder resolution should be at least 10 times greater than expected resolution. (Higher the better for underpowered devices) ------------------------------------------------------------------------------ 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
