R2AA08040FXP00 Sanyo Denki
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The Sanyo Denki R2AA08040FXP00 is a middle inertia servo motor in the R SANMOTION Servo Motors series with a rated output of 400 watts and a flange size of 80 mm. It features a battery backup absolute encoder with a multi-turn range of 65536 revolutions and a single-turn resolution of 131072 divisions per revolution. The motor has a maximum rotation speed of 6000 min-1 and weighs 1.7 kilograms.
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Product Description:
The R2AA08040FXP00 is a medium-inertia AC servo motor manufactured by Sanyo Denki for the R SANMOTION Servo Motors series. Its 80 mm flange supports direct mounting in compact machinery, and the unit serves as a rotary actuator that follows high-bandwidth current commands from a compatible SANMOTION R drive. In automated packaging equipment, surface-mount component placement systems, and small material-handling axes, the motor provides accurate speed and torque regulation to synchronize mechanical movement with process demands.
This model operates from a 200 V DC bus, matching common servo amplifier outputs. Under continuous load, it delivers 400 W of mechanical power while drawing a rated current of 2.6 Arms. The nominal shaft torque is 1.27 N·m, and the rotor has an inertia of 1.043 × 10⁻⁴ kg·m² to support stable operation with moderate mechanical loads. The motor has a torque constant of 0.559 N·m/Arms, which relates the applied current to the torque produced at the shaft. The shaft can reach 6000 rpm for rapid traverse movements and other high-speed positioning tasks. A stall torque capacity of 1.37 N·m establishes the continuous holding limit, while the 19.5 mV/rpm voltage constant indicates the relationship between rotational speed and back electromotive force.
For transient movements, the motor can generate 4.4 N·m of peak stall torque, providing short-term acceleration above the continuous torque level. Its phase resistance is 0.93 Ω, which moderates resistive losses and supports current regulation by the connected drive. The unit weighs 1.7 kg, minimizing the additional moving mass placed on linear stages and articulated mechanisms. Its battery-backed absolute encoder provides 131,072 divisions per revolution of single-turn feedback and tracks positions across 65,536 revolutions. This position retention eliminates the need for a new homing routine after a normal power cycle. Because the motor does not include a holding brake, stationary load retention must be provided by an external mechanical device or by drive-applied torque.
