An update, I made a star grounding configuration so EVERY ground comes from the same place. I tested with the VFD unplugged and all is fine, plug the VFD in and same problem sserial errors. The VFD is 220v so to use one power source I'd have to run new wire from the panel to the 220v outlet and get a 4 wire plug. Not impossible but a PIA to work up in the attic....
JT On 12/20/2015 7:20 AM, John Thornton wrote: > I have a BP knee mill with an Anilam 1100M CNC kit on it. I've removed > all the Anilam controls a while back. I've retained the drives and power > supply and added a GS2 VFD for the spindle. I have a 5i25 7i77 setup. > From the get go I've had problems with the electronics on this machine. > The VFD is controlled by modbus via the gs2 component. The VFD gets > reset to default parameters all the time from noise on the modbus. the > 5i25 get sserial errors. The sserial errors are so bad now it won't even > move an axis. The spindle works ok. The power supply is a simple bridge > rectifier with a huge blue cap and a large power resistor across the cap. > > Peter keeps telling me it's a grounding issue so where do I start > looking and what do I need to do? > > Thanks > JT > > ------------------------------------------------------------------------------ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
