Product Description:

The 8LSA43.E1045D100-0 is a three-phase synchronous motor produced by B&R Automation for the 8LS Synchronous Motors series. Designed as a compact drive element for automated machinery, the unit converts electrical energy into controlled mechanical rotation for positioning, conveying, and spindle duties in general industrial automation. It shares a common mechanical interface and encoder protocol with compatible servo drives, helping maintain consistent axis behavior in modular production lines. Its synchronous design supports accurate speed regulation and repeatable motion when paired with a suitable drive. The standard A configuration omits reinforced bearings and favors low inertia for dynamic cycles.

The motor has a rated shaft speed of 4500 rpm, giving useful overhead for speed-controlled tasks without exceeding typical servo inverter frequency limits. Heat generated at this duty point is dissipated by the self-cooling design, which uses free air circulation, so no external fan or liquid circuit is required. The mounting face uses a 100 mm square flange that fits IEC-compatible frames. Position feedback is supplied by an optical EnDat encoder that operates with protocol revision 2.1, enabling bidirectional communication of position and diagnostics. This speed range suits high-throughput axes and compact spindle arrangements in light industrial machines. The 8LSA length code 3 housing balances torque output with overall motor length.

Electrical terminations leave the stator through an angled swivel junction and a sealed connector, allowing cable routing parallel to the machine frame. This outlet arrangement also helps reduce cable bend stress where space beside the motor is limited. The absolute position resolution is 13/12-bit in single-turn and multi-turn operation, and the integrated counter tracks up to 4096 revolutions, eliminating the need for homing after power loss. Because the motor does not include a holding brake, any vertical axis must be secured externally. The keyed shaft end supports positive torque transfer to pulleys or couplings, and the lack of an oil seal limits the motor to clean, dry environments where fluid ingress is unlikely.