8LVA23.R0030D300-0
The 8LVA23.R0030D300-0 is a three-phase synchronous motor manufactured by B&R Automation for the 8LVA Three Phase Synchronous Motors series. This compact unit drives rotary axes in automated machinery, using resolver feedback for closed-loop motion control and a keyed shaft to transfer torque directly to the load. Its self-cooling housing avoids the need for an external fan, and the separated power and encoder cabling helps simplify routing where installation space is limited. This arrangement also supports compact servo layouts in machines that need precise positioning and steady speed control.
During continuous operation, the rotor turns at 3000 rpm while delivering 1.3 Nm of torque at a phase current of 5.8 A. Dynamic motion is supported by a peak torque of 4 Nm, and the drive may supply up to 20.7 A to reach that level. The motor has a torque constant of 0.23 Nm/A, which helps relate phase current to shaft output during controlled movement. Its electrical resistance is 0.83 ohms, which helps limit copper losses during steady operation. An accuracy window of 10 angular minutes supports position consistency in indexing tables, transfer systems, and pick-and-place heads.
A holding brake applies 2.2 Nm when power is removed, which helps keep the shaft in place at standstill. Without the brake, the assembly weighs 1.45 kg, and the rotor mass moment of inertia is only 0.26 kg·cm², keeping inertia low during acceleration and deceleration. A built-in double swivel connector separates the power and feedback connections, and the resolver model RE-15-1-J04 uses the interface used across the series. The winding inductance is 2 mH, which helps smooth current changes during rapid command shifts. The motor has no oil seal, so the area around the front bearing should be kept clean, and the self-cooling design requires unobstructed airflow around the housing.
