8LSA56.E0045D200-0 B & R Automation
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The 8LSA56.E0045D200-0 is a three-phase synchronous motor from B & R Automation's 8LS Synchronous Motors series. It features self-cooling with free circulation, a standard holding brake, and an optical EnDat 2.1 encoder with single-turn capability. The motor includes a 142 mm mounting flange and operates at a rated speed of 4500 rpm.
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Product Description:
The 8LSA56.E0045D200-0 is a three-phase synchronous servo motor manufactured by B&R Automation as part of the 8LS Synchronous Motors series. Within this product line, the 8LSA designation indicates a standard housing that does not use reinforced bearings. The unit supplies precisely controlled rotary motion for automated packaging, assembly, and material-handling axes where compact dimensions and rapid dynamic response are required. Mechanical integration is handled through a metric flange and an industrial connector, simplifying installation in modular machine frames. The permanent-magnet rotor and electronic commutation support accurate torque delivery without the brushes used in conventional DC motors.
At a rated speed of 4500 rpm, the rotor can execute high-cycle movements while remaining within its thermal limits. The frame relies on self-cooling through free air circulation, so it does not require a separate fan or liquid-cooling circuit. Position and speed are measured by an optical EnDat encoder that operates with protocol version 2.1. This single-turn device provides 13 bits of absolute resolution, allowing the drive to determine the angular position immediately after startup without performing a homing routine. A flange size of 142 mm aligns the housing with compatible machine mounting patterns. The configuration uses length code 6 for the magnetic stack depth, supporting the torque characteristics associated with this motor frame.
A standard holding brake secures the shaft when the drive is disabled, helping prevent load drift on vertical axes. Wiring exits through an angled swivel connection that reduces cable strain in compact enclosures and permits more flexible routing around nearby machine components. A single connector carries the power and feedback connections, reducing the number of separate cable interfaces on the housing. Output torque is transmitted through a smooth shaft, allowing the use of clamping hubs or shrink discs without a keyway. The stator uses three-phase synchronous windings, while electronic commutation provides brushless operation and controlled interaction with the permanent-magnet rotor. The motor does not include an oil seal, making it appropriate for dry operating areas where the shaft interface is not exposed to lubricants or process fluids.
