8LSA57.DB045S000-3 by B & R Automation

B & R Automation manufactures the 8LSA57.DB045S000-3 motor for the 8LS Synchronous Motors series. The device is a three-phase synchronous actuator built for closed-loop positioning and velocity tasks in automated machinery. The 8LSA code indicates the standard configuration without reinforced bearings, and revision 3 identifies the current mechanical version. A mounting flange and a smooth shaft allow direct coupling to gearboxes or driven loads, while the absence of an oil seal suits installations where external contamination is controlled.

The motor reaches a rated speed of 4500 rpm, supplying high linear throughput when used with ballscrews or belt drives. Feedback is delivered by an integrated Inductive EnDat sensor that operates on version 2.2; this protocol carries temperature warnings and device data along with position values. The encoder provides 19/12 bits of single-turn and multi-turn resolution, so a controller can resolve motion with very fine positional accuracy. A square 142 mm flange dimension matches common frame sizing used for this motor class. Connection hardware uses a single hybrid connector, and length code 7 identifies the stator stack depth selected for the DB winding.

Thermal management relies on self-cooling through free air circulation, eliminating external fans and reducing wiring complexity. Power, feedback, and brake lines are bundled in a single-cable solution, which reduces cabinet penetrations. Multi-turn capability extends to 4096 revs, so homing routines can be skipped after power cycles. The motor has no holding brake, so vertical axes must use external clamping devices if static holding torque is required. The connector style supports quick connection, and the standard build without reinforced bearings keeps inertia low for responsive acceleration.