Product Overview

The Mitsubishi Electric OSA105S2A is a compact rotary optical incremental encoder engineered for high precision feedback in Mitsubishi servo motor systems. Used extensively in industrial motion control applications, this encoder converts the rotational motion of a motor shaft into electrical pulses, enabling the servo amplifier or programmable logic controller (PLC) to accurately determine motor speed and relative angular position. This closed loop feedback mechanism is fundamental for achieving precise and dynamic control in automated machinery, robotics, and CNC systems.

The OSA105S2A utilizes an advanced optical sensing principle to generate consistent, reliable output signals. Its robust construction and adherence to Mitsubishi Electric’s stringent quality standards make it a trusted component in demanding manufacturing environments where operational uptime and measurement accuracy are critical.

Technical Specifications

Key Features

• High resolution of 2500 P/R for detailed angular displacement monitoring and ultra precise control.

• Incremental quadrature outputs (A phase, B phase) for accurate direction sensing and speed detection.

• Index pulse output (Z phase) providing a fixed reference point per revolution for homing routines.

• Differential line driver output with excellent noise immunity, enabling reliable signal transmission over longer cable distances in electrically noisy environments.

• Designed for 12 VDC operation, making it highly adaptable to systems where a 12 VDC power infrastructure is preferred or already in place.

• Seamless integration with Mitsubishi MELSERVO series drives and controllers, ensuring plug-and-play compatibility and reduced commissioning time.

• Compact and durable construction built to withstand industrial operating conditions, offering long term stability and maintenance free service.

Applications

The Mitsubishi OSA105S2A encoder is broadly implemented in industries requiring high speed, high accuracy motion control. Typical applications include precision positioning in CNC machining centers, closed loop speed regulation in industrial robotics, automated assembly lines, packaging machinery, semiconductor fabrication equipment, and material handling systems where exact synchronization is required.

By delivering real time position and velocity feedback, this encoder enables sophisticated control algorithms to maintain consistent product quality, reduce waste, and increase overall equipment effectiveness (OEE). The closed loop architecture supported by the OSA105S2A is also essential for safety rated motion systems that demand continuous verification of actuator movement.