Part Number: TMS320F28379D
From reading the following document www.ti.com/.../spru790d.pdf, I understand that the quadrature encoder index signal has a short pulse once per revolution and is used to determine the absolute angle of the rotor. However, is there any convention for what the rotor angle of the motor is when the quadrature encoder index signal pulse occurs? Is there a convention that the angle is 0 degrees (rotor is aligned with stator A-axis) when the pulse occurs? The motor I'm using is EMJ-04APB22. I don't see anything on the datasheet /cfs-file/__key/communityserver-discussions-components-files/171/EMJ_2D00_04-Servo-Motor.pdf which indicates the angle when the pulse occurs.
Thanks,
Kevin
