Compact synchronous motor at end of life
The 1FK7022-5AK71-1PA3: 1FK7 compact motors paired with a SINAMICS S120 drive module over PROFINET — the resolver or multi-turn encoder feedback, commutation, and thermal model are parameterised inside the drive's electronic nameplate, so the drive recognises the motor on first power-up and loads the matching controller data set. Knowing the motor is past its production window is what determines whether you specify it for a new line or hold it as a maintenance spare.
Lifecycle reality and what EOL means for the BOM
For a panel builder or MRO planner this changes the sourcing arithmetic. A single spare for a line that already runs 1FK7 compact motors is straightforward — hold inventory against the next failure event and quote against the BOM as needed. A new machine design that targets this frame today is a different calculation: the encoder interface, shaft geometry, and brake option all need to be re-verified against whichever successor the controls engineer standardises on, because the next-generation compact servo uses an updated electronic nameplate profile that the older drive firmware may not fully resolve.