U078D

U078D is a model designation used in industrial automation catalogs to identify a class of modular brushless servo actuators produced by ArcLine Systems. Introduced in 2012 as part of the U07x family, the U078D line is designed for high-dynamic positioning, repeatability, and integration with standard control systems. The code is widely cited in technical manuals, installation guides, and service documentation for automation equipment.

Design and specifications: The U078D actuator uses a brushless DC motor with an integrated high-resolution encoder for closed-loop control. It is built around a 78 mm frame size and offers nominal torque ranges from approximately 0.6 to 2.0 newton-meters depending on gearing. Standard configurations provide IP65 protection, a 2048-line encoder or equivalent, speeds up to about 5,000 rpm, and a peak force/torque rating suitable for mid-range automation tasks.

Control and communications: The device supports multiple fieldbus protocols, including EtherCAT and Modbus TCP, and is compatible with common servo drives and PLCs. It is designed for straightforward mounting with standard servo-motor brackets and accepts common feedback options such as incremental encoders or absolute encoders.

Variants and applications: The U078D is offered in several configurations, including U078D-A with higher gearing and U078D-B with feedback options optimized for precision. Typical applications include packaging, machine tending, pick-and-place, and assembly lines in manufacturing environments across several industries.

Manufacturing and lineage: The U078D designation is part of ArcLine’s ongoing family of modular actuators. It has experienced periodic updates, with firmware and hardware revisions aimed at improving efficiency, thermal management, and integration with evolving control architectures.