Product Description:

KEB manufactures the TA2M V40 ER TW within the TA Synchronous Servo Motors series. The motor serves as a compact, high-speed rotary actuator for positioning tasks in automated equipment, converting three-phase bus voltage from a matched drive into mechanical torque with fast response. Its small frame and integrated thermal monitoring make it suitable for pick-and-place gantries, indexing tables, and packaging spindles that require repeatable motion accuracy. The motor is intended for closed-loop servo operation, where the drive continuously adjusts current to follow commanded speed and position.

The motor uses a nominal supply of 400 V, and at that operating point the stator reaches a rated speed of 4500 rpm. Under those conditions, the shaft delivers a continuous torque of 2.2 Nm, which suits light-duty servo axes and quick indexing moves. Copper losses are influenced by a phase resistance of 18.504 Ω, while an inductance of 26.6 mH helps smooth current buildup and supports stable sinusoidal commutation. The voltage constant also links back EMF to speed, which helps the controller regulate the motor across changing loads. A built-in PTC thermistor monitors winding temperature so the drive can reduce current before excessive heat accumulates.

Dynamic reserve is shown by a peak winding current of 6.4 A, which the drive must provide during rapid acceleration and short overload events. That current allows a maximum torque of 7.2 Nm, and the motor can also produce a holding torque of 2.4 Nm during stalled or low-speed operation within its thermal limits. The rotating assembly has an inertia of 0.66 kgcm², which supports quick speed changes and responsive axis behavior without excessive sluggishness. Feedback is supplied by a BRX two-pole resolver energized at 7 VAC and 10 kHz, giving reliable rotor position feedback in electrically noisy installations, and the 2.9 kg housing helps keep moving-axis mass low.