R2AA08075FXH3S Sanyo Denki
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The Sanyo Denki R2AA08075FXH3S is a middle inertia servo motor and is part of the R SANMOTION Servo Motors series. It operates at a rated output of 750 W, with a rated speed of 3000 min-1 and a protection code of IP67. The motor includes an absolute encoder with a resolution of 131072 per revolution and uses a 200 volt supply.
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Product Description:
The R2AA08075FXH3S servo motor is produced by Sanyo Denki for the R SANMOTION Servo Motors series. With a medium-inertia rotor, it balances acceleration capability and load matching in packaging lines, pick-and-place arms, and other position-controlled axes. An 80 mm mounting flange mates directly with common gearheads, while a 16 mm shaft transfers mechanical power to compatible couplings without requiring an additional adapter. The unit serves as the primary mover in closed-loop industrial automation applications that require precise velocity and position regulation.
With a 200 V supply, the stator draws a nominal current of 4.6 A RMS to produce a continuous shaft output of 750 W. Under these operating conditions, the rotor reaches a rated speed of 3000 rpm and generates 2.39 N·m of torque for mid-range indexing tasks. The phase resistance is 0.4 Ω, providing an electrical characteristic that the connected servo drive uses when regulating motor current. A voltage constant of 19.5 mV per rpm relates mechanical speed to the proportional back electromotive force returned to the drive. Position feedback is provided by a 17-bit absolute encoder with 131,072 counts per revolution, giving the motion controller fine position information while retaining the rotor position after power is restored. This feedback arrangement eliminates the need for a separate homing routine and supports accurate closed-loop motion.
For short operating intervals, the rotor can accelerate to 6000 rpm, while the electromagnetic system can deliver up to 8.5 N·m of peak torque for rapid positioning. The higher temporary speed supports fast traverses between working positions, and the peak torque helps overcome load inertia during acceleration. The IP67 housing protects the stator against dust and temporary water immersion when the motor is installed correctly. The electromagnetic design provides a torque constant of 0.559 N·m/A RMS, allowing the drive to calculate expected torque from the commanded current. Because the motor has no holding brake, a vertical axis must retain its position through drive-applied torque or an external mechanical lock. This brake arrangement also requires the machine design to account for load retention whenever motor power is unavailable.
