Product Description:

The 8LSA57.DB030S300-3 is a three-phase synchronous motor produced by B&R Automation for the 8LS Synchronous Motors series. It provides controlled rotary motion for positioning axes in industrial automation equipment, including packaging machinery, handling systems, and coordinated production lines. The 8LSA designation indicates a standard motor configuration without reinforced bearings, making the unit suitable for applications that apply normal radial loads. Integrated position feedback reports the shaft angle to a compatible drive, allowing the controller to regulate speed, torque, and position without a separate external sensor. The motor has a length code of 7 and product revision 3.

The motor operates at a nominal speed of 3000 rpm, which supports high-speed positioning and appropriately selected gearbox ratios. A 142 mm flange provides the mounting interface for alignment with a gearbox, machine plate, or coupling assembly. Heat is removed through self-cooling with free circulation, so the installation does not require a forced-air fan or liquid-cooling circuit. Power, feedback, and brake conductors use a single-cable hybrid connection, reducing the number of separate cables routed through the machine. A standard connector provides the physical connection point on the motor housing. Rotor position is measured by an inductive EnDat encoder that communicates through EnDat 2.2. The encoder provides 19-bit single-turn and 12-bit multi-turn resolution, supporting accurate position reporting within one revolution and across multiple revolutions.

The encoder has a multi-turn range of 4,096 revolutions, allowing the controller to retain absolute shaft position across power cycles within that range. A standard holding brake secures the connected load when motor power is removed, which is useful for stationary or vertical axes. Torque is transmitted through a shaft with a key, providing positive engagement with keyed pulleys, gearboxes, or rigid couplings. Because the motor does not have reinforced bearings, external loads and belt tension must remain within the capacity of the standard bearing arrangement. The mounting structure should support excessive side loads rather than transferring them directly to the motor shaft. No oil seal is installed at the shaft, so the motor should be kept outside areas exposed to oil, lubricant spray, or other liquid contaminants. An external cover or suitable machine enclosure can protect the shaft opening when nearby equipment creates a risk of splashing.