Ok this makes sense. Thanks all for your explanations. I guess I just wasn't sure what was reasonable behavior and what wasnt.
So if the motor is rated for 36v, and the drive is rated for 80 volts max. How much voltage can I get away with delivering to the drives without damaging equipment? Thanks, Curtis On Thu, May 1, 2014 at 10:44 AM, Jon Elson <[email protected]> wrote: > On 05/01/2014 06:22 AM, andy pugh wrote: > > On 30 April 2014 19:37, Curtis Dutton <[email protected]> wrote: > >> The motor is a 130W motor > >> 1.5mm at around 12000mm/min. > > That seems like a very small motor, and a very fast travel. > > > > Is it possible that the motor is simply running out of steam? > > > Generally when the drive runs out of available voltage > the following error very suddenly grows without bound. > So, you can be at 500mm/min with error of .01mm, > and then at 550mm/min the error rises continuously > because full voltage applied to the motor is only > giving you 520mm/min, to give an example. > > So, having the following error increase only a modest bit > at higher speeds may indicate the drive just has a > constant time lag in the internal loop. Or, it may > be a torque limit, where the 130 W motor is nearly > maxed out on current driving the axis at 12 m/min. > Those conditions might cause a bounded error > that increases roughly proportionally to velocity. > > Jon > > > ------------------------------------------------------------------------------ > "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE > Instantly run your Selenium tests across 300+ browser/OS combos. Get > unparalleled scalability from the best Selenium testing platform available. > Simple to use. Nothing to install. Get started now for free." > http://p.sf.net/sfu/SauceLabs > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
