The Allen Bradley 845 series encoders are advanced encoders designed for operation with motors in industrial motion control and automation systems. These encoders deliver accurate position and speed feedback to ensure optimal performance in a variety of industrial applications. The 845 series includes several subseries of absolute and incremental encoders with different ratings and features. The 845 encoders in the Bulletin 845S and Bulletin 845H subseries are incremental encoders, and the 845 encoders in the Bulletin 845D and Bulletin 845G subseries are absolute encoders. Many 845 encoders have IP66-rated enclosures that can protect them from dust and from moderate amounts of water. The incremental encoders in the Bulletin 845S and Bulletin 845H subseries can operate at ambient temperatures between 0 and 60 degrees Celsius. The absolute encoders in the Bulletin 845D and Bulletin 845G subseries can operate at ambient temperatures between 0 and 85 degrees Celsius. The Bulletin 845G encoders can also operate at ambient temperatures between -20 and 85 degrees Celsius in some applications.
Different 845 series encoders can support different code formats. Encoders in the Bulletin 845S and 845H subseries support 2-channel incremental code formats with zero index. The Bulletin 845D encoders can support natural binary, gray code, or binary-coded decimal (BCD) code formats. The Bulletin 845G encoders can support standard gray code, gray code (SSI), natural binary, or binary-coded decimal (parallel) code formats. The incremental encoders in the 845S and 845H subseries support slew speed ratings of up to 6000 RPM, and the absolute encoders in the 845D and 845G subseries support spew speed ratings of up to 5000 RPM. The 845 series encoders can support a variety of mounting configurations with a variety of flange mounting and servo mounting options. Encoders from the 845S, 845H, 845D, and 845G subseries can all support shock ratings of 50g for 11 ms and vibration ratings of 20g or 1.5 mm of displacement. Different 845 encoders support different types of axial and radial connections. Bulletin 845S, 845H, and 845D encoders can support 5V DC or 8-24V DC power supplies. Bulletin 845G encoders can support 5V DC, 8-24V DC, or 10-30V DC power supplies.
Browse available units in our catalog of 845 Encoders.
This incremental encoder features square flange mounting and offers signal channels A, B, and Z. It has a maximum operating speed of 15,000 RPM and a frequency response of 100 kHz. The device is rated
Engineered for exceptional performance, the 845T-DN32BAG encoder features a quadrature phase relationship where Channel A leads Channel B. It boasts a frequency response of up to 100 kHz, enhancing it
This absolute encoder employs Gray code for its output coding and utilizes an NPN open collector output type. It has a square flange mount design with a shaft diameter of 3/8 inch. The device operates
Featuring Gray Code output, this encoder employs an NPN open collector output type and utilizes a 19-pin axial connector. With a 3/8-inch shaft diameter and square flange mounting, it is designed for
Designed with a NEMA Type 4 and Type 13 enclosure, this encoder provides solid protection against various environmental conditions. It supports a minimum and maximum operational temperature range of 0
This encoder provides 100 pulses per revolution for precise measurements and supports radial and axial shaft loads. It maintains performance with a starting and running torque of 2.5 N·cm, making it s
This model features a square flange mount style and incorporates a 3/8 inch shaft. It performs reliably at a maximum shaft speed of 6000 RPM while ensuring a starting torque of 2.5 N·cm. The NEMA Type
Featuring a size 4 NEMA configuration, this encoder employs a square flange mount and has a 3/8 inch shaft diameter. The device outputs data in TTL compatible format, utilizing Gray Code with a resolu
This device provides effective feedback with a maximum PNP source, NPN sink, differential line driver, and NPN open collector current rating of 20 mA. The encoder’s shaft measures 9.52 mm in diameter
This encoder is designed with a square flange mount for easy installation. It is rated for maximum operating humidity of 80% without condensation. The NPN open collector output type and radial 19-pin