Originally Posted by
JasonCampbell
My understanding is that a 3 phase sinusoidal AC servo makes one turn(rotation) for each sine cycle. .
When all three phases complete a cycle, that is 360 Electrical degree's, depending on how many pairs of poles the motor has decides how many 360deg Electrical cycles complete one mechanical 360deg rotation.
IOW if the motor only had two pairs of poles, there would be 2 Electrical cycle/mechanical cycle.
The Technical info on the Renco Encoder site, show the cycle arrangement for a BLDC commutated motor/poles etc.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.