8LSA45.DB022S300-3 by B & R Automation

B&R Automation's 8LS Synchronous Motors series includes the 8LSA45.DB022S300-3 servo unit, a three-phase synchronous machine used for precise axis control in automated cells, packaging equipment, and material-handling stages. Delivered under the 8LSA designation, this model combines compact geometry with a mounting flange so it can be fixed directly to guided machine frames. Its role is to convert drive current from a matched inverter into predictable torque and speed that follow motion profiles generated by the control system.

The motor employs a single-cable hybrid connection, so power conductors and encoder feedback share one routed lead that terminates in a keyed connector. Internal heat is removed through self-cooling with free circulation, eliminating the need for external blowers or liquid jackets. The motor has a 100 mm flange for alignment, and length code 5 identifies the overall stack depth within the application envelope. Rated mechanical output reaches 2200 rpm, and a standard holding brake locks the shaft during power-off conditions. Drive position feedback is generated by an inductive sensor that supports EnDat 2.2 command sets, and torque is transferred through a keyed shaft end. The housing has no oil seal and uses the standard configuration without a reinforced bearing.

Digital measurement accuracy is specified at 19/12-bit resolution, permitting fine velocity loops on both single-turn and multi-turn channels. Absolute position persists across power cycles because the encoder records up to 4096 revolutions on the multi-turn channel without a battery. The product is Revision 3, identifying the current version of this motor. The hybrid lead exits radially, and the absence of an oil seal suits installations where the coupling area is already protected from splashed coolant.