Hood,
I will probably won't need speeds above 10,000rpm (or may be even 8,000rpm), just wanted to do it the right way and put an encoder that can handle the whole range in case that at some point I will need it. The closest I've found so far were 8,000RPM so the 12,000RPM is sure better!
So you're saying that any motor of the MPL series has an encoder rated to 12,000rpm? Think the MPL are rated up to 5000RPM, so they used quite nice encoders on them. Do you know what make are the encoders? Model?
As far as I understand the motor poles number should have no affect on selecting a commutating encoder, but for some reason Q-Phase encoders do specify the pole count of the motor on their encoders...?
Daniel