Product Description:

The T511-012EL8 is a compact servo motor produced by Sanyo Denki within the T SANMOTION Servo Motors series. The unit is designed for closed-loop motion axes in pick-and-place modules, small loaders, or indexing tables where precise velocity and position control are required. By converting drive current into proportional torque, the motor provides the motion needed to propel linear or rotary machinery in industrial automation systems. It integrates with digital drives that use incremental encoder feedback to complete the position loop at high update rates.

The motor operates from a nominal winding supply of 75 V, delivering a continuous shaft output of 110 W at its rated speed of 3000 rpm. That mechanical power is produced when the drive supplies the rated armature current of 2.0 A through a copper path with a resistance of 5.1 Ω and an inductance of 3.2 mH. Together, these parameters influence current ripple and the servo amplifier’s current-loop bandwidth. Position data are provided by a PP031 incremental encoder with a resolution of 1000 P/R. Its line-driver output supports frequencies up to 300 kHz, allowing drives to track the rotor angle without missing counts during rapid movements.

The dynamic response of the T511-012EL8 comes from its electromagnetic design. With a torque constant of 0.21 N·m/A, the servo produces predictable torque per ampere, allowing the controller to generate accurate acceleration profiles. The small rotor inertia of 0.000037 kg·m² and a mechanical time constant of 4.3 ms enable quick reversals without overshoot in light pick-and-place axes. A compact frame diameter of 51 mm keeps the mass low and supports high natural frequencies in miniature gantries. The current reaches its rated value within the electrical time constant of 0.63 ms, so commanded torque appears almost immediately when the drive issues a step. This rapid current response helps the velocity loop react promptly to changing motion commands.