Encoder selection often comes down to what position information the control system actually requires. Incremental encoders generate pulses that must be tracked from a reference position, while absolute encoders provide a distinct position value and can report shaft position as soon as the system powers up.
The Same Sky blog post, When is an Absolute Encoder Right for Your Design?, outlines the differences between absolute and incremental encoders and examines why startup behavior, position-critical motion, system safety, and real-time feedback can influence encoder selection.
