Product Description:

The 8MSA5L.E0-B500-1 is a three-phase synchronous motor produced by B&R Automation for the 8MS Three Phase Synchronous Motors series. It provides controlled torque and speed for positioning and conveyor axes that require precise rotary motion in industrial automation. By combining a permanent-magnet rotor with digital feedback, the motor works as the main drive element in packaging equipment, assembly stations, and material-handling systems where repeatable motion is required. When paired with a suitable servo drive, it supports closed-loop control that helps keep speed and position stable as operating loads change.

This motor is configured for cable routing on the B-side, so the power and feedback connections leave from that side of the housing. This layout can help when the motor is mounted near a machine wall or gearbox because the cable bundle exits in one predictable direction. A self-cooling design removes heat through the housing without external blowers, and the motor is rated for operation at 3000 rpm. The motor has length class L and frame size 5. It uses a keyed shaft for torque transmission, and its relative rated torque is large for this frame. There is no oil seal, so the installation should keep process fluids away from the bearing area.

Rotor feedback is provided by an EnDat encoder with a base resolution of 512 lines, giving the drive a stable position signal for closed-loop control. The feedback channel supports signal frequencies up to 100 kHz, which helps maintain encoder performance during faster motor operation. Mechanical accuracy is stated as ±60″, and interpolation can refine the basic encoder signal for smoother speed regulation and positioning. The encoder uses single-turn absolute position measurement, so position is retained within one mechanical revolution after a power cycle. The motor does not include an internal holding brake, so any static holding function must be supplied by the connected drive or by external machine hardware.