8MSA5M R0-V801-1 B & R Automation
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The 8MSA5M R0-V801-1 is a synchronous motor manufactured by B & R Automation and belongs to the 8MS Three Phase Synchronous Motors series. It features a self-cooling system and resolver encoder technology with a BRX resolver type. The motor has a medium rated torque and motor size 5 with motor length M.
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Product Description:
The 8MSA5M R0-V801-1 synchronous motor is produced by B & R Automation as part of the 8MS Three Phase Synchronous Motors series. It is intended for servo axes in industrial automation where precise torque and speed control are required. The motor converts three-phase electrical power into controlled mechanical rotation for conveyor stations, packaging lines, and robotic joints. Its synchronous design supports coordinated operation with a compatible servo drive, allowing the connected machine axis to follow commanded motion profiles under changing load conditions.
The unit relies on self-cooling, which dissipates heat through the housing without external fans or liquid cooling circuits. Frame code 5 indicates the stator diameter and mounting pattern used for this motor configuration. Length code M identifies an extended magnetic stack that increases continuous power density within the available footprint. The motor has a medium relative rated torque, balancing continuous-duty requirements with the short-term torque needed during acceleration. Rotor feedback is provided by a resolver, which reports angular position during rapid acceleration and resists electrical noise commonly found in industrial environments. The resulting feedback signal allows the servo drive to regulate commutation, speed, and position without relying on a separate external measuring device.
Position data originates from a BRX resolver element that generates sinusoidal feedback signals for the connected drive. The transmitter maintains a nonlinearity tolerance of ±1 angular minute, keeping angular deviation small as the rotor moves through each revolution. Overall position precision remains within ±10 angular minutes, supporting stable alignment during low-speed indexing and homing cycles. This sensing performance allows the controller to filter mechanical ripple without excessive oversampling, which reduces the processing required for feedback evaluation. The standardized winding arrangement also supports consistent electrical behavior when the motor is paired with suitable B & R drive equipment and configured for the intended machine load.
