Product Description:

The B3.SM.800-64B0 is a synchronous servo motor produced by KEB within the SM Synchronous Servo Motors series. It converts controlled three-phase electrical input into precise mechanical rotation for automated machinery, enabling accurate speed regulation and repeatable positioning duties on production lines, packaging systems, and electronic assembly stages. By combining permanent-magnet excitation with integrated encoder feedback, the device serves as the primary actuation element in servo drives that demand fast dynamic response.

During rapid indexing cycles, the controller can draw up to 24.6 A, a peak current that precedes magnetic saturation. At that level, the rotor may accelerate to a maximum speed of 10000 rpm. Instantaneous shaft force reaches 17.71 Nm, allowing the axis to overcome friction and momentary load spikes. Continuous duty is based on a phase demand of 3.6 A, which maintains thermal equilibrium for the 3.0 kg motor. The four pole pairs provide fine electrical angle resolution, while the 1.22 kg cm² inertia limits overshoot between command changes. A coil inductance of 18.8 mH lengthens current rise time enough to filter switching harmonics, affecting servo bandwidth together with the copper resistance.

At standstill, the motor can sustain 4.1 A to deliver a holding torque of 3.22 Nm without positional drift. Back electromotive force is generated at a rate of 80.61 Vpk/1000 rpm, so the drive must compensate for it to keep speed error minimal near the upper limit. The phase resistance of 3.9 Ω indicates copper losses and shows how quickly winding temperature rises as current approaches either the rated or stall values. Compatible servo drives must account for the back electromotive force, resistance, and stall-current values when setting current limits and thermal protection.