Siemens 1FK7060-2AC71-1QB0 SIMOTICS S-1FK7 1FK7-CT 1.1kW 6Nm 2000rpm Servo Motor

The Siemens 1FK7060-2AC71-1QB0 is a SIMOTICS S-1FK7 (1FK7-CT) permanent-magnet synchronous servo motor rated 1.1 kW at 2,000 rpm, delivering 6 Nm standstill torque (M0, 100K) from a 600 V DC link. It integrates a holding brake, carries a single-turn 20-bit DRIVE-CLiQ absolute encoder (AS20DQI), and is naturally cooled in a shaft height 63, IMB 5 (IM V1/V3) housing rated IP64.

Technical Specifications

Selection Notes

Same 1FK7060 frame and 6 Nm / 2,000 rpm rating as the brake-free variant, with an integrated holding brake — weight rises from 7.1 to 8.5 kg and shaft torsional stiffness drops from 40,500 to 28,500 Nm/rad. Fit it on vertical or overhung axes where the load must be held without drive power; on horizontal axes, the brake-free variant is lighter and stiffer. The 3.0 A rated current and 1.91 Nm/A torque constant are unchanged by the brake.

Applications

Used as the servo motor in vertical or overhung higher-torque machine axes — Z-axes on heavier tooling, lift stations, and gravity-loaded feed axes — driven through a DRIVE-CLiQ-based servo drive via the AS20DQI single-turn absolute encoder interface. The integrated holding brake keeps the axis in position when drive power drops out or during an E-stop.