I have late 1980's Wadkin V5-10 cnc mill with GE mark century 2000 control.

The spindle motor is a Reliance GS1306 15hp unit which is driven via a Reliance Spind-Rel 3900 series drive (S6R3012). As far as I know Reliance were bought out by Rockwell Automation.

Does anyone have experience with the Spind-Rel drives, in particular the S6R3012 series? I am considering a retrofit using Dynomotion Kflop & Kanalog.

Many thanks,