I doubt that you can effectively test electrolytic power caps without placing them under a similar voltage situation. Be careful as the DC bus voltage in a drive like that can easily be lethal. Make sure your test equipment can handle the voltage.
Google "testing electrolytic capacitor" and that may get you started. Dave On 7/15/2014 7:59 PM, Leonardo Marsaglia wrote: > 2014-07-15 20:52 GMT-03:00 Dave Cole <linuxcncro...@gmail.com>: > >> I've been told before by an industrial repair shop that usually the >> first parts to fail are the electrolytic caps on the old drive boards. >> Their standard was to replace all of the electrolytics initially and >> then retest the board. The logic being that if they were not bad, they >> were living on the edge. >> > Hello Dave, and thanks for the quick answer. > > There are some big electrolytic caps inside the cabinet (80 mm diameter and > 180 mm long approx). I can replace them easy but is there a way to know if > they are faulty before replace them? > > My brother has a digital oscilloscope that can measure capacitance but I > don't know if that's ok for this kind of capacitors. But I guess if they > are in the range the oscilloscope can measure I might work. > > ------------------------------------------------------------------------------ Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
