R2AA13120VBS43Y Sanyo Denki
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The Sanyo Denki R2AA13120VBS43Y is a middle inertia servo motor from the R SANMOTION Servo Motors series. It features a rated output of 1.2 kW and a rated speed of 2000 min-1. The motor has a wire-saving incremental encoder and includes a holding brake with a static torque of 9.0 N·m and a brake release time of 100 ms.
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Product Description:
The R2AA13120VBS43Y is a medium-inertia AC servo motor manufactured by Sanyo Denki and supplied under the R SANMOTION Servo Motors series. As a drive element for industrial automation, it converts electrical energy into controlled mechanical rotation so positioning tables, pick-and-place arms, and packaging spindles can follow precise motion profiles. An integrated 90 VDC holding brake keeps the axis stationary when motor power is removed, supporting vertical loads and other applications that require secure load retention.
The motor operates from a nominal bus voltage of 200 V and draws a continuous phase current of 5.2 A RMS. Under these conditions, it provides 1.2 kW of mechanical power at a rated speed of 2000 rpm and delivers a continuous torque of 5.7 N·m. Its torque constant of 1.09 N·m/A RMS relates the commanded current to the resulting torque, allowing the servo amplifier to regulate output accurately. The phase resistance is 0.64 Ω, which affects winding losses and motor heating during continuous operation. A rated power rate of 54 kW/s supports rapid rotor acceleration during short, repetitive motion cycles such as pick-and-place operations. The voltage constant is 37.8 mV per rpm, providing the back electromotive force value used when matching the motor to a compatible servo amplifier. The amplifier can use this electrical data to regulate current without exceeding the motor’s operating limits.
Dynamic reserve is provided by a peak torque capability of 16.0 N·m, allowing the motor to handle brief acceleration and deceleration demands above its continuous torque. The inverter must accommodate a main-circuit apparent power of 2.2 kVA under full load. The built-in brake provides a holding torque of 9.0 N·m, engages within 30 ms, and releases fully within 100 ms so its operation can be coordinated with the motion controls. Rotor feedback is provided by a wire-saving incremental encoder that carries position data and power through a shared cable, reducing the number of connections required on moving axes.
