Product Description:

The 8LSA35.EA030D200-3 is a three-phase synchronous motor manufactured by B&R Automation for the 8LS Synchronous Motors series. It follows the 8LSA standard configuration, uses standard bearings, and mounts by a flange for secure positioning on compact machine frames. In automated production cells, the unit supplies regulated motion at constant torque, providing the drive element for indexing tables, linear stages, and rotary actuators. Its synchronous design allows a compatible servo drive to regulate speed, torque, and angular position during repetitive machine cycles.

The motor reaches a rated speed of 3000 rpm, allowing control loops to achieve high cycle frequencies while remaining within the continuous torque range of a size-A frame. Thermal energy is removed through self-cooling with free air circulation, so no external fan or liquid circuit is required. The mechanical interface uses a 91.3 mm square flange, providing a consistent mounting surface for a gearbox or machine bracket. Power and feedback conductors exit through an angled swivel connector, which provides clearance in tight spaces and permits rotation for improved cable routing and strain relief. A standard holding brake is integrated so vertical or torque-loaded axes can maintain their position when drive power is removed. The brake also prevents unintended shaft movement while the connected machine is stopped.

Position feedback is generated by an inductive EnDat sensor that tolerates dust and moderate shock better than an optical sensing system. The feedback interface uses EnDat 2.1, enabling bidirectional communication for position data, temperature information, and motor identification. Its resolution is 19 bits for single-turn position and 0 bits for multi-turn position, providing 524,288 discrete positions within one mechanical revolution. Because the encoder does not record completed revolutions, applications that travel beyond one turn require the controller to establish the axis position after power-up. Mechanical output is transferred through a smooth shaft, which works with clamp-style hubs or precision collets without requiring a keyed coupling. This shaft arrangement promotes concentric clamping and avoids the rotational imbalance that can result from a keyway at elevated speeds.