8JSA22.E4080D000-0 by B & R Automation

The 8JSA22.E4080D000-0 synchronous motor is produced by B&R Automation and belongs to the 8JS Synchronous Motors series. As a permanent-magnet AC servo unit, it provides rotational power for positioning and velocity control tasks in automated packaging, material-handling, and pick-and-place cells. The motor interfaces with B&R drive controllers in closed-loop axes, supplying repeatable torque and speed regulation for precise machine motion.

At a nominal speed of 8000 RPM, the rotor accommodates fast cycle requirements while maintaining thermal limits through a self-cooling housing that dissipates heat without external blowers. The built-in optical feedback delivers ±60 arcsec precision, letting the controller detect small positional deviations during contour moves. Its code wheel offers 13/0 (bits S/M) of resolution, which translates to 8192 discrete steps per mechanical revolution on the fine track used for commutation. Communication with the controller takes place over the Optical EnDat 2.1 interface, allowing absolute position data and diagnostic information to be exchanged on a bidirectional line.

The stator is secured by flange mounting, matching standard pilot diameters for repeatable alignment. Power and feedback conductors exit through an angled swivel connector, keeping cable loops inside the machine envelope during axis rotation. Torque is transmitted through a smooth shaft, so couplings or pulleys clamp directly without keyways when low-vibration drive trains are required. Because the encoder is single-turn, absolute position is valid within one revolution, and the control system must perform homing if multi-turn data is needed after power loss. With motor size 2, motor length 2, no holding brake, and no oil seal, the unit suits compact, high-speed applications where external braking and shaft sealing are handled elsewhere in the assembly.