8LSA55.EB030D100-3
The 8LSA55.EB030D100-3 is a servo motor produced by B&R Automation within the 8LS Synchronous Motors series. This three-phase unit supplies torque and speed for positioning axes, conveyors, and packaging machinery where precise closed-loop rotary motion is required. The motor is supplied without a holding brake, so loads must be secured by active motor torque or an external locking device during power-off states. With a compatible EnDat feedback channel, the motor delivers real-time rotor status to the drive controller and supports decentralized machine modules in industrial automation.
The motor follows the 8LSA configuration that omits reinforced bearings and uses a standard mechanical layout. Its electrical design is three-phase synchronous, enabling constant torque production that stays synchronized to the drive output frequency. Thermal energy is removed through self-cooling with free circulation, so no external fan or liquid loop is required. Installation uses a DIN 142 size flange, and the mounting face measures 142 mm for direct coupling to gearboxes or machine frames. Nominal speed reaches 3000 rpm, providing a practical balance between torque density and inertial response for mid-range automation axes. Rotor position and absolute revolutions are detected by an Inductive EnDat 2.1 encoder that combines strong noise immunity with digital bidirectional communication to the servo amplifier.
Power and feedback leads exit through an angled swivel connection, which helps route cables in tighter machine spaces. Mating is completed with an industry-standard connector that locks in place without tools, while the keyed shaft helps prevent slip during torque transfer. The feedback system resolves position to 19/12 bits, allowing fine incremental motion and stable long-term accuracy. For applications that require absolute multi-turn data, the encoder tracks up to 4096 revolutions after power cycling, which reduces the need for homing and supports synchronized multi-axis startup.
