Sourcing posture for an EOL Siemens 1FK7 servo
The 1FK7034-5AK71-1PG0: Any move to a current-production Siemens servo on the same axis is a parametric decision — frame length, encoder type, brake option, shaft detail — not a same-code swap.
What this means for the BOM line
For a controls integrator standing up a replacement axis, the practical decision is whether to replace like-for-like on the same 1FK7 code — preserving the SINAMICS drive configuration, encoder mapping, and mechanical mounting — or to re-spec to a current servo, which always means a fresh commissioning pass and an updated drawing set.