8JSA72.E6020D200-0
The 8JSA72.E6020D200-0 is a synchronous servo motor produced by B&R Automation within the 8JS Synchronous Motors series. It converts drive current from a matched inverter into precise rotary motion for positioning and velocity-control tasks on packaging lines, gantry axes, and other automated machinery. It acts as an electromechanical actuator that integrates directly with the manufacturer’s PAC-based control architecture. The compact frame and integrated feedback allow tight installation in multi-axis systems where cable space and mounting depth are limited.
The motor uses size code 7, which places it in a mid-range torque class for the series. Its length code 2 increases the active lamination stack to raise continuous power without enlarging the mounting footprint. The rated speed is 2000 rpm, which suits common gear ratios used on indexing, conveyor, and positioning axes. Cables connect through an angled swivel connector, which helps routing in confined spaces and reduces strain at the entry point. A flange mounting face centers the housing, and the output uses a smooth shaft for backlash-free clamping couplings. Cooling is passive through surface radiation and surrounding airflow, so no external blower or coolant circuit is required.
Position feedback is provided by a single-turn optical encoder that communicates through the optical EnDat 2.1 protocol. The measuring disc contains 2048 lines for position sensing, and angular accuracy stays within ±20 arcsec. Because the encoder tracks only one mechanical revolution, homing is required after power-up. A standard holding brake provides 53 Nm of static torque to secure vertical loads when the inverter is disabled. The design has no shaft seal, so the motor should be installed in dry areas or used with external sealing where oil, coolant, or washdown exposure is possible.
