On 27 July 2010 21:43, Don Stanley <[email protected]> wrote: > The solution was a 5% KDR filter from TCI in Milwaukee Wi in the VFD > output.
I suspect some ferrite beads on the output lines helped with my rather troublesome VFD noise problem. Though I also added an input filter and shielded power cables at the same time, so don't have the data to deconvolve the various effects. The input filter was initially troublesome, tripping the ELCB in the main supply. The solution I found was to power the VFD through a zero-crossing SSR controlled by EMC2. As the mains voltage is always zero at switch-on there is no current spike into the filter caps, and no tripping of the breaker. So far it has been a 100% success for about a year. -- atp ------------------------------------------------------------------------------ The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://ad.doubleclick.net/clk;226879339;13503038;l? http://clk.atdmt.com/CRS/go/247765532/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
