Servo definition and where this 1FK2 HD fits on a SINAMICS S210 line
The 1FK2104-5AK10-2SA0 is a low-inertia SIMOTICS S-1FK2 HD synchronous servo with an integrated holding brake, sized for the SINAMICS S210 single-cable drive family. At 2.4 Nm standstill torque it sits in the small-frame end of the 1FK2 HD lineup — the kind of motor you'd bolt onto a packaging conveyor, a small indexing table, or a high-rev pick-and-place axis where the brake has to hold the load at standstill without a separate mechanical clamp. Stator stack and shaft are short-body by design: cylindrical shaft D14 × 30 mm, degree of protection IP64 with the standard sealing concept, rotatable M17 plug for the power and encoder combined connection. The AS22DQC absolute encoder is a 22-bit single-turn — meaning the drive knows absolute position within one mechanical revolution at power-up, which removes the homing pass on every machine restart.
Performance envelope and what it does at the shaft
Rated output is PN = 1.07 kW at nN = 6000 rpm on a 380-480 V bus, and PN = 0.75 kW at nN = 3000 rpm on a 200-240 V bus. In plain terms: the same motor wound for either the 230 V class or the 400 V class SINAMICS S210 line, with the constant-torque speed envelope scaling with the DC bus. Commissioning implication is the same — S210 auto-identifies the motor from the electronic nameplate, so a 230 V panel and a 400 V panel accept the same order code.
Compliance and build status
Export-control classification is AL:N / ECCN:N_CNDU — no special export licence paperwork for the routine cross-border shipment that a typical European or North American machine builder needs. For a buyer building panels into the EU market, the RoHS trail and the REACH statement cover what the EU Declaration of Conformity relies on; the SINAMICS S210 drive completing the axis takes care of the system-level CE conformity under the Machinery Directive. Lifecycle status is active. Class C — manufactured to order, single-piece quantity unit, in a 452 × 250 × 267 mm pack. Group code R220 / product group 9021 are the Siemens internal ordering codes a buyer sees on the invoice line and in the SPL.