2012/2/3 Peter C. Wallace <[email protected]>: > > Is it possible that you have some binding or tracking issues? The 7I39L has > a current limit of 15A/phase If you exceed ths current, you will suddenly > have a drastic change in your tuning as you will lose the inherent damping > of a voltage mode drive. The current limit should never be reached in a > properly tuned system but it may be happening when you have the oscillation. > The way to check for this is look for the red overcurrent light on the 7I39 > when you execute rapid accelerations (or perhaps due to resonance or > binding)
Thank You for the tip! The thing is that the oscillation occurs, when the speed of the jog has already been reached, not during acceleration. But I will pay attention to the LEDs. Viesturs ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
