Product Description:

The P50B08075DXS20 is a brushless AC servo motor produced by Sanyo Denki for the P5 Super BL Servo Motors series. It serves as the rotary drive element in pick-and-place heads, index tables, and other motion axes where closed-loop regulation of current and position is required in industrial automation. Its compact frame and incremental feedback simplify wiring and help reduce the space required for installation.

At its rated operating point, the motor supplies 750 W of mechanical power while turning at 3,000 rpm and generating 2.381 N·m of torque from an armature current of 6.0 Arms. The phase winding resistance is 0.43 Ω, and the electrical time constant of 5.8 ms determines how quickly current rises when the drive issues speed commands. Under continuous stall conditions, the stator withstands 7.1 Arms and produces 2.94 N·m, allowing the shaft to hold a load without forced airflow. Heat removal is aided by a housing that mounts to an 80 mm flange. Position feedback is provided by a wiring-saving incremental encoder with a resolution of 2,000 P/R, giving the controller detailed position counts per revolution without additional channels. The moving components have a rotor inertia of 1.926 × 10⁻⁴ kg·m², allowing responsive acceleration without excessive drive gain. The motor does not include a holding brake, so the drive or an external mechanism must retain static loads when the axis is stopped.

During rapid transients, the controller may command 23.7 Arms, allowing the rotor to deliver 8.82 N·m of instantaneous stall torque for quick indexing or disturbance rejection. The mechanical speed limit is 4,500 rpm, extending the usable range above the rated operating speed. Each unit weighs 3.9 kg, which keeps the overhung load on small gantry axes modest. The electromagnetic design provides a torque constant of 0.447 N·m/Arms, linking commanded phase current directly to developed torque without commutator wear.