Product Description:

The 8LSAA2.D9045S300-3 is a three-phase synchronous motor produced by B&R Automation as part of the 8LS Synchronous Motors series. Serving as a compact servo prime mover, it delivers controlled torque and speed for tasks such as indexing conveyors, actuating rotary axes, and closing packaging jaws across automated lines. The unit is designed for direct flange mounting and uses a hybrid lead that carries power, encoder feedback, and safety signals in one cable. This arrangement reduces the number of cable routes required between the motor and control cabinet while keeping the wiring compact.

The absence of a reinforced bearing keeps radial load capacity within standard limits and minimizes inertial mass for quick acceleration. Connectivity is established through a single-cable solution that merges motor phases and digital feedback inside one shielded connector, so only one routing path is required. Heat is dissipated by a self-cooling design that relies on free air circulation around the stator housing, eliminating the need for forced-air accessories. The mounting interface uses a 70 mm square flange, allowing the motor to bolt directly to compatible gearboxes or machine frames without adapters. Under nominal excitation, the rotor reaches 4500 rpm, providing high rotational speed for low-inertia tooling while remaining within the permissible electrical frequency range of the associated inverter.

Position feedback is delivered by an inductive EnDat sensor that supports protocol version 2.2, enabling bidirectional parameter exchange and electronic motor data functions with the drive. Static holding torque is supplied by a standard holding brake that clamps the shaft when the drive is disabled, helping prevent vertical axes from drifting. The encoder provides 19/12-bit single-turn and multi-turn resolution, giving the controller fine angular measurement and position tracking across 4,096 revolutions without battery support. The keyed shaft end provides positive engagement with belt pulleys, gears, or flexible couplings. Because the housing does not have an oil seal, the motor is intended for clean applications where lubricant migration and liquid contamination are not expected.