Product Description:

The T720-109E84N is a compact brushless servo motor engineered by Sanyo Denki for the T SANMOTION Servo Motors series. It is intended for positioning or velocity-controlled axes in automated assembly, dispensing, and light material-handling equipment where installation space is limited. By converting commanded electrical power into precise mechanical motion, the motor links a servo amplifier to the driven load and supports repeatable motion profiles that maintain consistent cycle times in factory machinery.

During continuous operation, the shaft provides a rated output of 200 W. This power is achieved at a rotational speed of 3000 rpm, which corresponds to a steady-state shaft torque of 0.64 N·m. To reach that operating point, the motor draws 3.4 A from a drive that applies 80 V across the armature windings. The copper paths have a winding resistance of 2.8 Ω, and the electrical time constant of 1.1 ms indicates how quickly the phase current can be modulated for closed-loop control. With a rotor inertia of 0.147 × 10⁻³ kg·m², the motor can accelerate loads rapidly. The voltage constant of 24.2 × 10⁻³ V/rpm indicates the back electromotive force generated in relation to rotational speed.

Dynamic behavior outside the nominal operating point is influenced by an armature inductance of 3.0 mH, which filters current transients so the control loop remains stable. When the shaft is locked, the motor sustains a continuous stall torque of 0.77 N·m without overheating. It can also deliver an instantaneous maximum torque of 5.4 N·m to overcome starting friction or process shocks. The mechanical time constant is 7.8 ms, indicating the speed response under rated load, while a torque constant of 0.23 N·m/A links commanded current to output torque. The internal bearing design limits friction torque to 0.04 N·m, reducing idle losses and supporting servo stiffness during fine positioning.