On 11/10/2011 06:50 PM, Brian May wrote: > This is probably an easy question for alot af the people on the > list. > > I have 3 phase power going to my vfd on my machine. I want to the > use that same power to power all the 120 single phase components. > (the dc power supply for the steppers and varios other motors. ). > This way i only need 1 plug > > I have been reading and people say i can go from 1 leg to a nuetral > or leg to leg. I do not have a nuetral line so my question is will it > be ok to go from leg to leg for the 120 single phase? Or is there > some other component i need?
Check the voltage with a meter. Chances are the only voltage you'll find line-to-line is 208V, or possibly 240. You could use a step-down transformer, but it may be cheaper to run another line. There will possibly be 120V between the line and earth, but earth isn't a current-carrying leg and can't be used. Karl ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
