Defining the 1FK7 compact synchronous motor
The 1FK7042-5AF71-1TH0 is a Siemens 1FK7 compact synchronous servo motor — a permanent-magnet brushless machine used as the rotary axis drive in machine tools, packaging lines, and high-throughput automation cells where closed-loop position and velocity control ride on the same feedback path as the drive controller.
Panel-side handling and integration context
The 1FK7 compact family is specified into SINAMICS S120 drive platforms — the motor is matched to the drive's commissioning parameters through the electronic nameplate read back over DRIVE-CLiQ or the SSI/EnDat link, so a replacement unit is parameterized automatically once the encoder type is recognised, with no manual tuning table to key in if the lot is genuine.