8LSA57.DB030S200-3 by B & R Automation

The 8LSA57.DB030S200-3 is a servo motor manufactured by B&R Automation and assigned to the 8LS Synchronous Motors series. The unit serves as a compact drive source in industrial automation, converting electrical energy from a matched inverter into precise rotary motion for packaging lines, assembly robots, and material handling equipment. This model is a three-phase synchronous machine, so its electromagnetic field remains synchronized with stator frequency for accurate speed control. When paired with a compatible inverter, it supports closed-loop axis motion that requires controlled acceleration, stable running speed, and repeatable stopping behavior.

The nominal shaft speed is 3000 rpm, giving the motor a high-speed operating point for general servo applications. Position and speed feedback are handled by the Inductive EnDat encoder interface, and EnDat version 2.2 supports digital calibration data together with bidirectional diagnostics. The motor has a 142 mm flange, which allows direct attachment to standardized gearboxes or mounting plates. Thermal management relies on self-cooling through free air circulation, so no fan or liquid circuit is required for continuous duty. All power, signal, and safety conductors are routed through a single-cable solution, which reduces connector count and helps simplify cable routing on moving axes.

A standard holding brake is integrated to secure the load when the inverter is disabled, which is useful on vertical or intermittent-motion axes. The inductive feedback system supports a resolution of 19/12 bits for single-turn and multi-turn tracking, giving the controller fine position data during interpolation. Multi-turn counting is maintained up to 4096 revs, so absolute position can be retained after a power interruption without requiring a homing move. This helps the axis return to operation with its stored position information still available to the control system.