T402-011E17 Sanyo Denki
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The Sanyo Denki T402-011E17 is a servo motor from the T SANMOTION Servo Motors series with a rated output of 23 W and a rated speed of 3000 rpm. It features a rated armature current of 1.9 A, a rated armature voltage of 20 V, and a continuous stall torque of 0.08 N·m. The motor has an open collector encoder output type with a resolution of 500 pulses per revolution.
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Product Description:
The T402-011E17 servo motor is produced by Sanyo Denki as part of the T SANMOTION Servo Motors series. It is a low-power rotary actuator intended for tightly controlled speed and torque loops in assembly robots, laboratory instruments, and other compact automation stages. By combining a permanent-magnet rotor with commutation that does not require Hall sensors and encoder feedback, the motor converts drive-amplifier commands into repeatable angular motion for positioning tasks. Its compact design allows it to operate in automation equipment where available installation space is limited.
The armature draws up to 10 A during transient operation and receives power from a nominal 20 V bus. The shaft can reach a peak speed of 5000 rpm, providing a broad operating range for rapid positioning movements. At this speed limit, the electromagnetic system delivers a maximum torque of 0.42 N·m. During continuous operation, the motor provides 23 W of mechanical output at 3000 rpm while carrying 1.9 A. Its continuous stall torque is 0.08 N·m, allowing the shaft to support light static axis loads. Feedback is supplied by a 500-pulse open-collector encoder that provides position information to a compatible drive. A mechanical time constant of 7.1 ms indicates the motor’s response following a torque step.
An armature inductance of 1.1 mH helps filter current ripple in the winding. The winding resistance is 3.2 Ω, which affects copper losses as armature current increases. A torque constant of 0.047 N·m/A relates the applied current to the torque produced by the motor and supports current-loop configuration. Dynamic behavior also depends on the rotor inertia of 0.0047 × 10⁻³ kg·m², which contributes to the motor’s response during acceleration and deceleration. The encoder uses open-collector outputs that are compatible with standard single-ended interface cards. These outputs allow the connected drive to monitor shaft movement and maintain closed-loop control during speed changes and positioning cycles.
