I am having an issue with my 2010 drive setup. Whats happening is then I try and run the motors with the rutex vb6 tuning software the motors run but shudder. I've played around with various tuning settings but regardless of the settings the same shuddering behavior is always there. I have all but eliminated the possiblity of radio frequency intereference with the encoder signal as I am now using audio video cable which was reccomended to me by an electrical engineer who is experienced in industrial robotics, and I'm running it far away from the motor power wires. I ran the same process with another pc with identicle results which I think I can safely assume that the signal from the pc is fine. I've powered the motor power wires direct from the power supply (bypassing the rutex drives) and they run strong and smooth. I've yet to varify the data cable from the pc the the rutex motherboard is ok, I think it is but I'll try and get hold of another to try it out.
Appart from that the only think left is the rutex drives and motherboard. Each drive has the same behavior. When I run the step response sometimes the motor runs away sometimes it dosen't. When I hit the stop button it continues to run, I have to turn off the power supply to make the motor stop.