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Rotary Optical Encoder

Rotary Optical Encoder is a sensor that converts machinery positional information into corresponding pulse numbers or digital data by photoelectric signals. Therefore, it can detect the speed, position, angular velocity, distance and counts information relating to mechanical machine. It is usually applied on the angle-measuring device and equipment. Hence, it is a very important device in industrial automation field.

Delta ROE series provides precise positioning and speed sensor function. Major applications include main hoist of crane (crane control), CNC tooling machine, elevator, conveyer, textile machine, and storage equipment, etc. industry related machine. Also, it can also be built inside of many kinds of servo motors, brushless DC motor (BLDC) and induction servo motors, and converts rotary motion or position to electronic pulse numbers for phase change, speed and position detection.

Absolute Type (Solid Shaft, Hollow Shaft)
ROE-A series is an absolute encoder that uses Gray Code and reports the shaft angle within a 360oC range. As compared with other type of encoder, it can remember the position according to the mechanical position of the encoder.



Incremental Type(Solid Shaft,Hollow Shaft,Hole Shaft)
ROE-E Series is an angle-measuring sensor device which is used to detect angular velocity. It can convert the angular velocity that is input into the shaft to the corresponding pulse numbers following optical communication principle.



Commutation Type For Servo Motor (Hollow Shaft, Through Hole Shaft)
ROE-M Series is a commutation encoder which is designed for servo motor. It can not only output the signals of A,B, Z phase but also can detect the U, V, W signals of servo motor for commutation.



Specified Encoder For CNC Machine Tool
To meet the use requirements of encoder for CNC industry, Delta has launched a new encoder product specialized for CNC Machine Tool– CS7 series. For the solution of high resonance and much oil & gas problem occurred in machine tool application.