I bought a set of those steppers off of ebay a while ago. ecellent steppers, but the encoders are basically useless on a stepper motor. my encoders were only wired for the 1 ppr index. i took the encoder apart and wired in the A and B sides so i could get the 200 ppr. i use the encoder only on the z axis as a sort of dro (i use mach 1 for running the machine). hope this info helps |