Product Description:

The 8LMA45.DB022CH00-0 synchronous motor is produced by B & R Automation and is part of the 8LM Synchronous Motors series. Designed for servo axes in automated assembly cells, conveyors, and packaging lines, it converts drive-supplied three-phase current into precisely controlled rotary motion. An EnDat 2.2 multi-turn encoder is integrated at the rear of the housing, returning absolute position data across multiple revolutions and eliminating homing sequences after power-up. That feedback arrangement supports repeatable starts and stable closed-loop positioning on servo-driven axes. The motor’s permanent-magnet design supports high torque density while maintaining a compact frame.

At the continuous operating point, the motor runs at a nominal speed of 2200 rpm and can deliver a nominal torque of 5.1 Nm. At this load, the windings draw only 2.4 A, while the shaft provides a mechanical output of 1175 W. This operating range suits applications that need steady motion over long duty cycles without abrupt thermal rise. The back electromotive force is characterized by a voltage constant of 134.04 V per 1000 rpm, so the controller must provide roughly 295 V at the nominal speed. Five pole pairs establish the electrical relationship between the stator field and rotor position, which helps the drive maintain proper commutation.

For dynamic peaks, the inverter can supply up to 19.29 A, enabling the motor to reach a maximum torque of 27.4 Nm during acceleration and rapid indexing. Rotor responsiveness is aided by a moment of inertia of 3.58 kgcm², which balances load coupling with fast settling times. The current loop is also affected by a stator inductance of 41 mH and a phase resistance of 4.32 Ohm. These electrical values help the drive tune current response and monitor heat during changing load conditions.