8LSN58.EB022D900-0 B & R Automation
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The 8LSN58.EB022D900-0 is a three-phase synchronous motor produced by B & R Automation as part of their 8LS Synchronous Motors series. It features a 142 mm mounting flange, standard holding brake, and self-cooling with increased mass moment of inertia. This motor includes an Inductive EnDat encoder, has an angled connection direction, and offers multi-turn capability up to 4096 revolutions.
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Product Description:
The 8LSN58.EB022D900-0 is a three-phase synchronous motor manufactured by B&R Automation for the 8LS Synchronous Motors series. In automated machinery, it converts electrical energy from a servo drive into controlled rotary motion for positioning axes, conveyors, and process equipment. The motor provides regulated torque and speed for applications that require repeatable movement under changing loads. Its 8LSN design supports direct integration with compatible servo drives and machine control systems.
The motor has a 142 mm flange and a length code of 8, providing a stack length suited to medium-power applications without requiring excessive axial installation space. Its connectors use an angled swivel connection, allowing cable routing to be adjusted in confined spaces while reducing strain near the motor housing. A self-cooling design removes heat through the housing without an external fan, simplifying installation where forced-air equipment is not available. The motor also has an increased mass moment of inertia, which helps smooth rapid speed changes and load disturbances during operation. It operates at a rated speed of 2200 rpm, providing a practical speed range for geared and directly coupled machinery. Torque is transferred through a keyed shaft end, while an oil seal helps prevent lubricant from entering the motor housing. A standard holding brake clamps the rotor when power is removed, preventing suspended or vertical loads from drifting during stops.
Rotor position is measured by an inductive EnDat encoder that sends feedback to the servo drive through the EnDat 2.1 protocol. The measuring system provides a 19/12-bit resolution for single-turn and multi-turn position data, supporting accurate commutation and absolute position monitoring. Its counter offers a multi-turn capability of 4096 revolutions, allowing the control system to retain the axis position across many shaft rotations. Absolute feedback remains available after a power cycle, reducing the need to perform a new homing movement before operation resumes. The inductive measuring method is suitable for industrial motion systems where dependable feedback is required despite routine vibration and repeated operating cycles.
