8LSA54.DB020S900-3

The B & R Automation 8LSA54.DB020S900-3 synchronous servo motor is a high-performance drive solution within the 8LS Synchronous Motors series, offering a rated power of 2.0 kW and an impressive peak torque of 19.2 Nm. Designed for continuous industrial operation in accordance with EN 60034-1 S1 mode, this three-phase synchronous motor delivers precise and reliable motion control. The motor's natural convection cooling ensures efficient thermal management without the need for additional fans, reducing maintenance and noise. With a flange dimension of 142 mm and a compact housing, the 8LSA54.DB020S900-3 integrates seamlessly into a variety of machine tool and automation applications. Its robust design and continuous duty rating make it suitable for demanding environments in manufacturing and process automation.

Detailed engineering specifications highlight the motor's balanced design. The number of pole pairs (4) provides smooth torque production and minimized cogging. It features a moment of inertia of 6.04 kg·cm² for responsive acceleration and deceleration profiles. At rated speed of 2000 rpm and a maximum speed of 9000 rpm, the motor covers a wide operational range. A standard holding brake enhances safety during emergency stops, while the EnDat version 2.2 inductive encoder delivers high-resolution digital feedback over a single-cable hybrid solution. The motor is built to mounting flange configuration and uses a multi-turn (4096 revs) turn capability for absolute position recall. The product revision 3 ensures the latest manufacturing refinements.

Operational performance is optimized for high-duty cycles and rapid response. The 8LSA54.DB020S900-3 maintains stable torque output up to its continuous rating, with holding torque of 9 Nm at standstill to secure loads when powered down. For dynamic demands, it provides a maximum torque of 27.6 Nm, supporting high-inertia startup and sudden reversals without sacrificing control. The motor's 37-minute thermal time constant allows gradual heat buildup, minimizing thermal stress during prolonged operation. It can operate reliably in ambient temperatures up to +55 °C and up to 2000 m maximum installation elevation without derating. Natural convection cooling and a maximum flange temperature of 65 °C ensure consistent performance under harsh factory conditions.

System integration is simplified through compatibility with standard B & R servo drives and motion controllers, enabling direct digital interface and advanced diagnostics. The built-in EnDat 2.2 encoder eliminates external sensor wiring and enhances positional accuracy. Its single-cable solution reduces installation complexity and cabinet space. Target applications include CNC spindle drives, precision assembly robots, high-speed indexing tables, and other industrial automation systems where reliability, torque density, and continuous operation are critical.