Product Description:

The ER-JE-7200D is a single-turn absolute encoder manufactured by Okuma and positioned in the Absolute Encoders series. It mounts directly on a motor or machine axis to convert mechanical rotation into a digital code that represents the shaft’s exact position. Because it supplies absolute feedback, the controller can resume motion immediately after an interruption without executing a reference search, reducing downtime in CNC tooling centers, automated pallet systems, and similar industrial motion platforms.

The encoder’s electronics are Top Mounted, meaning the signal-processing board sits above the sensing disk and keeps heat-generating components away from the shaft bearing region. A Cylindrical body form lets the unit slide into a concentric bore so radial alignment can be set with minimal fixturing. Interface pads are presented as Edge Contacts, a layout that permits direct mating with a ribbon or flex PCB for shorter signal paths and reduced connector bulk. Position data is transmitted as an Absolute code, so every mechanical count corresponds to a unique binary pattern rather than a repeating incremental pulse stream. The enclosure is formed from Metal, providing electromagnetic shielding and mechanical impact resistance inside a factory cabinet.

In typical machine layouts the encoder follows an Internal installation style; it is secured beneath a servo cover where contamination and cable damage are less likely. Three fastening points, supplied as 3 mounting ears, give a defined bolt circle that holds the housing against torsional shock while preserving concentricity. The sensor’s processing card follows a Circular PCB shape, matching the rotor diameter and allowing symmetrical copper routing for balanced signal timing. Its mechanical dimensions and pin assignments align with the associated drives, so the encoder fits the intended hardware without field machining.