Product Description:

The 8LSA46.EA030D000-3 is a three-phase synchronous motor manufactured by B & R Automation and assigned to the 8LS Synchronous Motors series. In automated lines, the unit functions as a servo actuator, translating controlled current from a drive into repeatable rotary motion for positioning tables, pick-and-place heads, or conveyor zones. The A designation in its type code indicates the standard 8LSA configuration without reinforced bearings, so the motor fits light- to medium-duty axes where minimal radial loading is expected.

Its mechanical interface is a 100 mm square flange that bolts directly to a mounting flange on the machine frame, while length code 6 indicates the stator stack depth selected for the required torque. Power and feedback lines exit through an angled swivel connector, easing cable routing toward drag chains. The motor uses self-cooling through free air circulation, so no external fan or liquid loop is required. A rated speed of 3000 rpm aligns with typical servo drives and keeps gearbox ratios moderate. Motion is transmitted by a smooth shaft; because no keyway is provided, couplings must clamp securely around the shaft surface. The installation must avoid fluid ingress and excessive axial force because the motor does not have an oil seal or reinforced bearings.

Position feedback is supplied by an inductive EnDat sensor that produces absolute angular data. The feedback link uses EnDat 2.1, allowing bidirectional parameter exchange with compatible B & R servo amplifiers. Its resolution is 19/0 bits, providing 524,288 positions per revolution in single-turn mode. Multi-turn position data is not stored because the encoder supports only single-turn operation. The motor has no holding brake, so external clamping or gravity counterbalancing is required when the axis must remain fixed without power. Product revision 3 incorporates incremental updates to the insulation and connector plastics without changing the published performance characteristics.