8LSA57.E1045D000-0 by B & R Automation

The 8LSA57.E1045D000-0 is a servo motor built by B&R Automation for the 8LS Synchronous Motors series. It serves as a drive element in automated machinery where precise torque, speed, and position control are required. When connected to a compatible inverter, the motor converts electrical power into controlled rotary motion for packaging, assembly, and material-handling axes. This operating role makes it suitable for machines that need repeatable movement during frequent starts, stops, and positioning changes.

Its electrical design is three-phase synchronous, allowing sinusoidal current from the drive to produce torque without rotor slip. The machine reaches a nominal mechanical speed of 4500 rpm, which supports moderate-speed conveyors, indexing tables, and similar axes without requiring a large gear reduction. Heat is removed by self-cooling with free circulation, so airflow around the housing is sufficient and no external blower is needed. Position feedback is delivered through an optical EnDat encoder that transmits absolute position data, and compatibility is maintained by the EnDat 2.1 protocol used with matching drives. This feedback arrangement supports accurate speed regulation and stable position control during changing load conditions.

The mechanical interface uses a flange that measures 142 mm, matching common mounting patterns for direct attachment to the machine structure. Power and feedback conductors exit through an angled swivel connector, which helps route cables in tight spaces and reduces strain at the connection point. Feedback resolution is 13/12 bits for single-turn and multi-turn position counting, and the absolute system stores position across 4096 revs. The assembly follows the standard 8LSA configuration, so it does not include a reinforced bearing, holding brake, or oil seal, and it uses a smooth shaft.