8LSA46.EB030D100-3 by B & R Automation

The 8LSA46.EB030D100-3 is a three-phase synchronous motor built by B&R Automation for the 8LS Synchronous Motors series. Within an automated line, it acts as the primary rotary actuator, supplying continuous torque to positioning, conveying, or tooling axes that are driven directly from a servo inverter. The motor follows the 8LSA configuration, which uses a standard bearing set without reinforcement, and it mounts to the machine frame with a flange for direct mechanical alignment.

The mechanical operating ceiling is 3000 rpm, a rated speed that matches many medium-inertia motion tasks while keeping shaft stress within permissible limits. A square mounting face of 100 mm simplifies interchange with motors that share IEC size codes and helps align the housing on standard machine interfaces. Position feedback is delivered by an inductive EnDat encoder, and compliance with EnDat version 2.1 lets the drive exchange high-resolution position data and diagnostics over a single shielded cable. That interface resolves the rotor angle to 19/12 bits for single-turn and multi-turn counts, supporting fine velocity loops and accurate position tracking. Heat is removed by self-cooling through free circulation, so no external blower or liquid jacket is required. Installation space stays compact, but ambient airflow must be available. Electrical power and feedback conductors connect through a swivel-style connector set, and a keyed shaft end transfers torque to the load without slip. The design omits a holding brake and an oil seal when static parking torque or fluid exclusion are handled elsewhere.

For extended indexing applications, the encoder keeps track of up to 4096 revolutions in multi-turn operation, eliminating homing after power loss. Machine wiring is simplified because the power and feedback plugs are arranged in an angled swivel orientation that clears adjacent components and reduces interference with neighboring hardware. The stack length identified by length code 6 balances continuous torque output with overall motor depth, while product revision 3 remains compatible with B&R servo drives.