There was a thread back in May (11-15) of 2015 Subject was "If there's one thing I hate, all the noise, noise, noise, noise” where I was having strange noise issues. There are a lot of helpful suggestions there for tracking down noise. In my case the problem was an overly sensitive keyboard, but before I narrowed that down I spent quite a bit of time tracing down grounds and also adding both an input power filter (ebay search "Rasmi Filter" for inexpensive options) for the VFD and also adding 4 Ferrites to the output VFD power leads to the motor. These are the ferrites I used: https://www.digikey.com/product-detail/en/74277290/732-3092-ND/2626031
Good luck. -Tom ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
