8LSA57.D0030S000-3 by B & R Automation

The 8LSA57.D0030S000-3 belongs to the 8LS Synchronous Motors series from B&R Automation. This three-phase motor is supplied as a standard 8LSA configuration without reinforced bearings, and it serves as a compact drive source for precisely controlled rotary axes in industrial automation cells. Its hybrid single-cable connection lets a drive controller carry power and feedback through one routed lead. The compact layout suits rotary axes that need accurate starts, stops, and repeatable motion in automated equipment.

The motor achieves a rated speed of 3000 rpm, allowing it to match common servo drive output requirements without mechanical gearing. The motor has a 142 mm flange dimension for direct mounting to machinery and alignment with matched gearboxes or couplings. Heat is removed by a self-cooling design that relies on free air circulation, so no external blower or liquid circuit is needed. Power, encoder signals, and safety lines share a single-cable solution, which reduces panel wiring and helps keep cable routing orderly in confined spaces. Rotor position is sampled by an Optical EnDat encoder, and version 2.2 of this protocol transmits digital angle data and electronic nameplate values to the servo amplifier.

Absolute feedback resolution is listed as 25/0 for single-turn and multi-turn data, which supports fine velocity loops in packaging, handling, or assembly tasks. A smooth shaft end enables backlash-free clamping and eliminates keyslot stress risers. The housing includes a mounting flange and omits an oil seal and holding brake, making the motor suitable for clean, dry enclosures where external locking devices can be used. As a three-phase synchronous unit with single-turn capability, it supports deterministic homing cycles while keeping overall inertia low for dynamic positioning.