SNEAKYM8: I'f love to know how you interfaced the Fanuc drives.
I have pinouts and most of the A, B and other board schematic and interface wiring diagrams (when Fanuc gave diagrams with their machines) and still can't figure it out. How/where did you find tacho's for the servo's? I'm at a loss for that too. PM me with details if you don't mind....
BTW, Bridgeport used a variation of the digitalsignal to tacho conversion on their later BMDC systems. They did that to get simple 2 wire operation of their servos on their TorqueCuts. Sadly, the systems are not particulary well documented, board wise as they used some custom IC's and a PwM board that piggy backed onto the BMDC. The guys who know anything don't seem to be sharing it as they do quite well providing legacy service. |