Not sure I understand your question, these seem to be normal incremental encoders and as such you need the commutation channels on them to match your motors pole pairs. Or are you meaning something else?
That's what I had thought - you put a commutating encoder on a motor and its 3 hall signals have to match the motor poles. I hadn't realized that the NUMBER of poles had any affect - still same three hall signals from the encoder. But from that link it seems that an encoder is specific to a motor with the NUMBER of poles it was designed for. Am I missing something here? Are the signals from an encoder on a 4 pole motor different from those of an encoder on a 6 pole motor?
Found some info on encoders saying 30,000rpm but not sure if they are any use or not as have not really read it yet. http://www.moog.com/literature/MCG/opticalencoders.pdf
Yes, these look good. They are not commutating though.
Oh and if this is for a spindle you may not even need commutation signals, well not sure about the Ultra 5000's but the 3000's can do an auto sense for commutation startup which on a spindle I dont think would be an issue.
Hood
Ah... Hadn't noticed this detail in the manual before. This is perfect! The motor IS meant for a spindle indeed. Thanks for pointing me to this. So I wonder now what if I fed the Sin/Cos channels from the resolver to the the Ultra5000 while the resolver Ref is being excited by a DC voltage..
Does it make any sense? In second thought, seems it wouldn't work at low speeds because the resolver wouldn't be able to induce the Sin/Cos when the magnetic field changes slowly. But with a high frequency excitation I think the drive "will be confused"... Can you tell me how does the Sin/Cos encoder work? Is it the same phasing like normal, square wave signal, encoder?
Daniel