Built for a SINAMICS S120 axis with a holding brake
The 1FK2204-6AF10-2MB0 is a SIMOTICS S-1FK2 CT servo motor from the 1FK2 servomotor family for SINAMICS S120 drives, with an integrated holding brake for vertical-axis and gravity-loaded applications where the shaft must hold position when the drive is de-energised. Continuous ratings are M0 = 3.2 Nm stall torque, PN = 1 kW at nN = 3000 rpm on a 380–480 V supply, with a half-power rating of PN = 0.5 kW at nN = 1500 rpm on a 200–240 V supply, so the same frame covers both the 400 V class and the 230 V class S120 line sections without a hardware change.
Encoder, brake, and the wiring decision
Feedback is an absolute encoder AM22DQC, 22-bit single-turn plus 12-bit multiturn, which means the drive retains absolute position across power cycles and the controller can skip the homing sequence on every restart — useful on S120 lines where cycle time on the return-to-home pass is a measurable percentage of the tact. Power and signal both go through M17 connectors with a DRIVE-CLiQ plug for the encoder cable, so the motor drops onto the standard SINAMICS S120 pre-fabricated cable set; there is no terminal box to land and the cable gland orientation on the connector backshell is the only field-side wiring choice. The shaft is a plain cylindrical D14 x 30 mm with IP64 sealing, so the motor body resists splash and dust ingress but is not rated for direct washdown or food-grade cleaning — for lines that need IP65 or higher the matching high-inertia or planetary-gear variant in the same frame would be the right cross-reference, not this code.
Lifecycle status and the procurement posture
Lifecycle stage is current on the Siemens record, with Group Code R220 and Product Group 9021 sitting in Product Class C — built-to-order with no return credit, which is the normal posture for configured servo motors and means lead time is set by the factory order book rather than shelf stock. Substance-compliance posture is RoHS-conformant since 01-07-06 with REACH Art. 33 candidate-list information available, and export classification AL:N / ECCN:N_CNDU applies, so the part ships without dual-use export paperwork in most jurisdictions.
What ships in the box and how it lands on the dock
Packaging is one piece per carton at 452.00 x 250.00 x 267.00 mm, so receiving needs to plan for a single-motor shipper on the dock rather than a multi-up; the unit quantity is 1 Piece with packaging quantity 1, matching the built-to-order class.