Siemens 1FT6044-4AF71-3EA1 SIMOTICS S Servo Motor

Siemens SIMOTICS S synchronous servo motor, model 1FT6044-4AF71-3EA1, is a 1FT6-frame, three‑phase AC servo delivering 5.0 Nm of nominal torque at a speed of 3,000 rpm, designed for natural cooling in an IM B5 mount with IM V1/V3 compatibility. It includes an absolute encoder with EnDat 2048 interface (encoder A-2048) and is listed with a 100K encoder parameter in multiple catalogs, with derating noted in some references due to the encoder integration. The motor uses a power‑and‑signal connector with an axial outlet direction to simplify wiring, and Siemens catalog entries for AF71 variants identify IP65 protection for this family in typical industrial environments. This servo is engineered for precise, repeatable motion control in automation systems and is intended to be driven by Siemens motion controllers and S‑series drives to achieve synchronized, high‑fidelity positioning and speed control.