8LVA23.R0015D000-0 by B & R Automation

B & R Automation produces the 8LVA23.R0015D000-0, a three-phase synchronous servo motor in the 8LVA Three Phase Synchronous Motors series. The device provides controlled rotary motion for positioning, indexing, and general material-handling axes in automated machinery. The motor is intended for closed-loop operation, so the drive can correct speed changes caused by varying load. Its compact housing helps when the axis must fit into crowded machine sections or tightly packed servo clusters.

The feedback chain centers on a resolver that provides positional accuracy of 10 angular minutes, supporting fine alignment of tooling and carriers. Signal and power conductors exit through separate encoder and power ports, so high-frequency drive currents do not interfere with feedback signals. That separation helps preserve feedback signal quality during rapid current switching. Installation is simplified by a built-in swiveling double angular connector that can be rotated to suit cabinet routing or robot dress packs. The swivel arrangement also helps orient cables away from adjacent machine components. Heat is removed through self-cooling, allowing continuous service without forced airflow. Under rated line conditions, the rotor sustains 1500 rpm, and speed is monitored by the embedded resolver without incremental encoders.

Mechanically, the motor uses Motor Size 2 with Motor Length 3, which places it in a compact frame with a longer active stack. The installed position sensor is the RE-15-1-J04 resolver model, which interfaces directly with B & R servo amplifiers. A smooth shaft simplifies coupling to low-backlash gearheads and clamp-style couplings. The lack of a holding brake means static load retention must be provided externally. Because the motor is supplied without an oil seal, it should be mounted away from pressurized lubricants.