8LSN56.EB030D300-0 B & R Automation
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The B & R Automation 8LSN56.EB030D300-0 is a three-phase synchronous motor from the 8LS Synchronous Motors series. It uses self-cooling and has a standard holding brake with a rated speed of 3000 rpm. The motor comes with an inductive EnDat encoder, multi-turn capability up to 4096 revolutions, and a 142 mm mounting flange.
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Product Description:
The 8LSN56.EB030D300-0 synchronous motor is produced by B & R Automation within the 8LS Synchronous Motors series. It is a three-phase servo actuator designed to supply rotary motion to indexing tables, gantry axes, and other electrically driven machine modules. By integrating directly with compatible AC drives, the unit converts commanded current into precise torque while minimizing losses from additional mechanical transmission components. In industrial automation systems, it serves as a compact prime mover wherever closed-loop feedback and repeatable speed control are required for continuous-duty production equipment.
The unit is a three-phase synchronous motor, so it uses controlled stator field sequencing to produce consistent torque throughout its operating range. A nominal speed of 3000 rpm provides the rated operating point for applications that require controlled, repeatable shaft motion. Heat is removed through self-cooling with an enlarged rotor mass, eliminating the need for an external fan and reducing the number of auxiliary components. Position feedback is generated by an inductive EnDat sensor that supports EnDat version 2.1, allowing digital transmission of position and diagnostic data to the drive. When motion must be held after power is removed, the integrated standard holding brake applies clamping torque to the shaft. The motor also has length code 6 and an increased-inertia option, which provide the rotor characteristics required for its intended motion profile.
Installation uses a mounting flange measuring 142 mm across, providing a rigid interface for attachment to the machine. Power and feedback leads exit through an angled connection that can swivel to accommodate restricted cable-routing space. A keyed shaft end transfers torque directly to a coupling, while the absence of an oil seal makes the motor suitable for clean operating areas where additional shaft sealing is unnecessary. The EnDat system provides absolute feedback with a 19/12-bit resolution, supporting precise position measurement within each turn and across multiple turns. Its multi-turn position range extends to 4,096 revolutions, allowing the drive to retain the recorded shaft position after a loss of power.
