Allen-Bradley 845H-SJHZ14CNY2 Optical Incremental Encoder

Allen-Bradley 845H-SJHZ14CNY2 Optical Incremental Encoder is a size-25 device in Rockwell Automation’s 845H family, designed to supply reliable position and speed feedback for industrial automation systems. As an optical incremental encoder, it generates pulse-based signals that a controller can count to determine relative position and shaft speed, enabling precise motion control and synchronization. The 845H family, described in Rockwell's Bulletin 845H, is known for robust optical sensing performance and a range of configurations to fit different mounting, cabling, and connector needs. The SJHZ14CNY2 variant denotes a specific configuration within this family, selected to match a machine interface or control-system integration. In typical automation applications—such as conveyors, machine tools, processing lines, and robotics—incremental encoders like the 845H provide the feedback necessary for accurate positioning, speed regulation, and coordinated multi-axis motion. With its established lineage under Allen-Bradley equipment, this encoder is meant to interoperate with Rockwell Automation controllers and drive systems that accept incremental encoder input, delivering repeatable, trackable performance in demanding factory environments.