03066858 is an X-axis incremental encoder readhead for ASM SIPLACE SX/DX series pick-and-place machines; its official model designation is RSF MS20.xx M X axis.
Core Function and Installation
Mounted on the gantry, this readhead captures signals from the linear scale in real time to provide feedback on the X-axis position and velocity. It serves as a critical sensing component for the high-speed, high-precision positioning of the placement head. The official manual specifies that a parallel gap of 0.75 mm must be maintained between the readhead and the linear scale during installation. This gap should be verified using the included plastic shim to ensure consistent spacing across the entire width.
