Allen-Bradley D31705-1 A26491-A Control Board

Allen-Bradley D31705-1 A26491-A Control Board is a compact, microprocessor-based control system module designed for industrial automation and motor control within Allen-Bradley systems. It provides RS-232, RS-485, and CANbus communications for integration with PLCs and other automation devices, and ships with 8K of memory while drawing less than 2 W of power. The unit measures 140 mm by 100 mm by 30 mm and weighs about 0.15 kg, built for panel mounting in harsh environments with an operating temperature range of -40°C to +85°C and an IP54 rating for dust protection and light moisture exposure. It supports vector control for precise motor performance and is rated for a maximum load current of 160 A, enabling use with sizable industrial motors; its RS-485 Modbus-RTU interface facilitates straightforward integration into existing control architectures. Typical applications include manufacturing, processing, and heavy industry environments where a compact, reliable control board drives and monitors motor-driven systems within the plant’s automation layer.