Product Description:

The T730T-012EL8 servo motor is built by Sanyo Denki as part of the T SANMOTION Servo Motors series. It converts electrical power into precise rotary motion, allowing automation controllers to position loads in packaging cells, electronics assembly stations, and small pick-and-place robots. The motor supports feedback through an incremental encoder and a tachogenerator, enabling speed and position loops to be closed directly at the drive instead of relying on mechanical gear reduction.

At its nominal operating point, the motor supplies 1.18 N·m of shaft torque while producing 300 W of mechanical power at 2500 rpm. These values are achieved when the drive applies 75 V to the armature and allows an armature current of 5.2 A. The 1.1 Ω armature resistance restricts resistive losses, so most of the supplied power is available for motion. A 76 mm outer diameter keeps the frame compact for mounting on light-duty axes while providing sufficient magnetic cross section to dissipate heat at the rated load. The tachogenerator produces 0.007 V per rpm, providing an analog signal that a legacy drive can use for velocity feedback without additional sensors.

Dynamic performance includes a continuous stall torque of 1.43 N·m, meaning the rotor can maintain that torque without exceeding its thermal limits. The electrical circuit has an inductance of 1.6 mH and an electrical time constant of 1.5 ms, so current rises quickly when the controller commands step changes in torque. A mechanical time constant of 4.0 ms indicates that the rotor can accelerate rapidly. The torque constant of 0.273 N·m/A establishes the relationship between commanded current and output torque. Position feedback is supplied by a line-driver encoder with a resolution of 1000 pulses per revolution, providing differential signals that resist electrical noise over long cable runs.