Siemens 1FL6042-2AF21-1AA1 SIMOTICS S-1FL6 Servo Motor 0.75kW 3000rpm 2.39Nm

The Siemens 1FL6042-2AF21-1AA1 is a SIMOTICS S-1FL6 servo motor rated for 230 V 3AC operation, delivering 0.75 kW at 3000 rpm with a standstill and rated torque of 2.39 Nm. It has a 40 mm shaft height, an incremental TTL encoder at 2500 increments per revolution with a feather key, and IP65 protection with a sealing ring. It is compatible with SINAMICS V90 converters.

Technical Specifications

Selection Notes

The 2.39 Nm standstill and rated torque are equal, so this motor holds its full rated torque at zero speed as well as at 3000 rpm without derating, useful for axes that must maintain position under load before a move starts. Tolerance N without a holding brake means the shaft is free to rotate at power-off; axes that must not drop when de-energized need an external brake or a mechanical stop. The 2500 increment/rev TTL incremental encoder gives relative position feedback for the SINAMICS V90 loop, so the axis needs a reference or homing move after power-up rather than retaining absolute position.

Applications

Servo positioning axes on machine tools, packaging equipment, and material handling systems driven by a SINAMICS V90 converter, where a 40 mm shaft height and 0.75 kW/2.39 Nm rating match light to mid-duty single-axis motion.