8LSA55.DB030S000-3 B & R Automation
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The 8LSA55.DB030S000-3 is a three-phase synchronous motor produced by B & R Automation as part of the 8LS Synchronous Motors series. It features a flange dimension of 142 mm and supports a rated speed of 3000 rpm with a smooth shaft end. This motor uses an inductive EnDat encoder with multi-turn capability up to 4096 revolutions and is cooled by self-cooling with free air circulation.
Internal Product Review
The 8LSA55.DB030S000-3 is a B & R Automation three-phase synchronous motor with self-cooling through free circulation. An inductive EnDat 2.2 encoder and multi-turn capability to 4096 revolutions support accurate feedback and dependable positioning in servo applications. The single-cable hybrid connection simplifies installation, and the 3000 rpm rated speed makes the unit a strong fit for dynamic motion systems.
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Product Description:
The 8LSA55.DB030S000-3 is a three-phase synchronous motor manufactured by B&R Automation for the 8LS Synchronous Motors series. This revision-3 unit carries the 8LSA designation and uses the standard build without reinforced bearings. It attaches to machinery through a mounting flange and couples directly to gearboxes or timing pulleys. Within packaging lines, pick-and-place stations, and light machining centers, the motor converts drive output into tightly regulated torque and speed, enabling precise axis positioning during automated cycles.
The motor reaches a rated speed of 3000 rpm, which it can maintain under continuous load without exceeding its thermal limits. A flange dimension of 142 mm supports mechanical integration with the mounting surface. Power and feedback use a single-cable hybrid solution; the molded connector terminates both the three-phase conductors and encoder leads to reduce wiring. Position is reported by an inductive EnDat sensor that communicates through the EnDat 2.2 protocol and delivers absolute position data to the drive. The encoder provides a resolution of 19/12 bits for the single-turn and multi-turn position fields, allowing fine interpolation within one revolution while tracking movement across multiple revolutions.
The unit uses self-cooling with free circulation, relying on natural convection along the housing fins rather than forced airflow. It is supplied without a holding brake, so the servo drive or an external clamp must secure any static load. The rotor has a smooth shaft, supporting backlash-free clamping hubs in applications where a keyway is undesirable. Absolute feedback provides a 4,096-revolution multi-turn range, retaining the recorded position through power cycles and removing the need for a homing procedure. Length code 5 indicates the active stack depth, which supports continuous torque while maintaining moderate rotor inertia. The motor does not have an oil seal, making it suitable for clean installations where exposure to lubricants is controlled.
