1FK7 frame in a high-dynamic axis
The 1FK7044-7AH71-1DB5 is a Siemens 1FK7 high-dynamic synchronous servo motor, catalogued under Servo Motors and typically paired with a SINAMICS S120 drive module in a positioning axis where the rated torque envelope and resolver/encoder feedback shape the loop closure (cites:,).
Lifecycle read: eol_hot and what that means at the BOM line
For a machine already in the field, an eol_hot servo motor typically signals last-time-buy windows for spares, repair-exchange on returned units, and the start of a planned migration to a current 1FK7 successor or to the SIMOTICS S-1FK2 family — nameplate substitution must be confirmed against the drive firmware and encoder type before commissioning (cites:,).
Sourcing posture for an obsolete-frame servo
Quoted to order against the BOM through independent distribution: lead time, lot traceability, and a price-break ladder are confirmed at RFQ; for MRO planners with a line-down 1FK7 axis, repair-exchange on a returned core is the shortest path back to service when new-surplus stock is thin (cites:,).
