8LSN43.DB030S300-1 by B & R Automation

B&R Automation manufactures the 8LSN43.DB030S300-1 within the 8LS Synchronous Motors series. This three-phase synchronous motor is intended for precision axes in industrial automation where rapid indexing and repeatable positioning are required. Its 8LSN designation marks a standard configuration with an integrated mounting flange for straightforward machine installation. By converting controlled three-phase current into synchronous torque, the motor drives packaging stations, pick-and-place modules, and other motion systems that rely on direct feedback control.

The motor reaches a rated speed of 3000 rpm, allowing direct coupling to gearless systems that need steady high-speed rotation. It has a flange dimension of 100 mm, which helps center the motor accurately during installation. Thermal management uses self-cooling and an increased mass moment of inertia; the housing dissipates heat, while the heavier rotor helps smooth load changes. Power, feedback, and brake conductors are combined through a single-cable hybrid solution, reducing cabinet wiring and minimizing electromagnetic loops. Position feedback is generated by an inductive EnDat encoder, providing noise-tolerant absolute data to the drive controller.

Inside the encoder, protocol version 2.2 supports rapid parameter exchange, and a resolution of 19/12 bits allows fine incremental motion together with absolute position data. The system tracks up to 4096 revolutions, which eliminates homing after power cycles in multi-turn applications. A standard holding brake secures vertical or suspended loads when the inverter is disabled. The motor is supplied without an oil seal, suits clean environments, and has a keyed shaft end for positive torque transfer. Length code 3 gives it a moderate housing depth, and the mounting flange supports direct machine installation.