Since these rotary encoders are small, thin, and lightweight, they can be installed in tight spaces. Encoder resolutions vary from 100 to 4000 P/R. These rotary encoders are available in round shaft type or hollow shaft type with voltage, line driver, or open collector output. It can detect the actual position, speed, and direction of rotation of conveyors, belts, pulleys, and other mechanisms, contributing to the construction of predictive maintenance systems.

Magnetic encoders do not use a light emitter or a light receiver but still use a code wheel and a sensor. Instead of slits, the code wheel has alternating north and south pole magnets on the outer edge of the code wheel. The magnetic sensor senses changes in magnetic polarity when the poles pass by. The end result is the same as the output circuit outputs pulses to a PLC or HMI. Since there's no need to power the light emitter and receiver, the magnetic encoder uses less power than an optical encoder.

Magnetic encoders are more robust than optical encoders in the sense that they can operate better in humid, dusty, or dirty environments. However, magnetic encoders may not work well in an environment with magnetic interference. Magnetic encoders are also offered in rotary, linear, incremental, and absolute types. To enable a magnetic encoder to track absolute positions, multiple magnetic disks are necessary.

In addition to our standard rotary encoders lineup, we also offer an IP65 type that can be used in dusty or wet environments.

	Round Shaft Type	Hollow Shaft type	Dust-Proof and Water-Resistant (IP65) Type
Mounting dimensions: φ30 mm
Mounting dimensions: φ40 mm

The magnetic encoder is resistant to dust, condensation, and vibration, thus maintaining stable performance.

The open-collector output can be used in up to 70 °C, the line driver output* and voltage output can be used in environments up to 85 °C

*For the dustproof and water-resistant IP65 type, both open-collector output and line driver output are rated up to 70 °C.

Resolution is 100 to 4000 P/R. 14 types are available, including resolutions that are easy to combine with stepper motors and those suitable for the angle indexing.

Oriental Motor's magnetic encoders have an angular accuracy of ±0.36˚. Angular accuracy refers to the difference between the actual rotation angle and the angle output by the encoder. This reduces the burden of verification at the time of equipment start-up.

If there is no Z-phase signal for return-to-home, the accuracy of the home position depends on the accuracy of the HOME sensor. Variations in operating speed and ambient temperature will cause variations in home accuracy. Since the Z-phase signal is output only once per motor revolution, using the Z-phase output during the return-to-home operation improves accuracy.

This product is dustproof and water-resistant to IP65 standards, meaning it can be used without being affected by dust or water droplets. No cover is required, and it can be installed as is.

By installing a rotary encoder on a mechanism, a preventative maintenance system for that mechanism can be created.

The Z-phase signal is output at the position where the shaft flat (round shaft type) or the fixing screw (hollow shaft type) has rotated 180˚ from the encoder connector. Use this as a guide when aligning the mechanical home and the Z-phase signal position.

When used in combination with the CVD Series, encoder information can be directly captured to monitor position deviation and detect operational errors. There is no need for high-speed counters, which reduces the cost of the host controller.

*CVD Series Applicable Products: S type (SPI communication control), fully closed-loop control type, multi-axis type