8LSA55.E1030D300-3 by B & R Automation

B&R Automation builds the 8LSA55.E1030D300-3 as a member of the 8LS Synchronous Motors series. The unit is a three-phase synchronous motor in the 8LSA designation, and it is listed as product revision 3. Within automated machinery, it provides closed-loop torque and speed control for axes that must follow position commands precisely. It is suited to servo axes that require repeatable motion and stable speed regulation during continuous operation. The configuration summary identifies it as the standard variant without reinforced bearings, so it is intended for applications where radial loads remain within ordinary limits.

The motor reaches a rated speed of 3000 rpm while maintaining synchronous tracking with the drive controller. Position feedback is supplied by an optical EnDat encoder that works with EnDat version 2.1. This feedback device resolves rotor position to 13/12 bits for single-turn and multi-turn operation and records rotation over a multi-turn span of 4096 revs. That arrangement supports absolute position retention after power cycles without requiring a reference run. A length code of 5 indicates the housing depth used to accommodate the stator stack for the specified torque class. Electrical power and signal conductors are routed through an angled swivel connector, and the mounting flange allows direct attachment to the machine frame.

The motor uses a flange dimension of 142 mm and a keyed shaft end for torque transmission to couplings or pulleys. Cooling relies on self-cooling with free circulation, so no external airflow or liquid circuit is required. The motor carries a standard holding brake that secures the axis during power loss. An angled swivel connection direction eases cable routing in tight enclosures and keeps the connector exit aligned with available space. The motor has no oil seal, which limits use in environments with splash lubrication, and the absence of reinforced bearings matches normal thrust and radial load conditions.