Sourcing posture for a hot EOL Siemens servo motor
The 1FK7040-5AK71-1KH5: Independent traceability matters more than usual for this order code: with the part already in the EOL window, the documentation chain (nameplate vs. PO) is what separates a usable replacement from a paperweight, so each RFQ should request the declaration pack alongside the quotation rather than as a follow-up.
Field-fit notes for a replacement install
Because the part is a Siemens servo motor in the 1FK7 compact series form factor, a drop-in replacement on the same axis stays inside the existing machine footprint and feedback cable loom — there is no mechanical redesign, only the electrical re-commissioning: encoder parameter set, direction test, and a controlled-motion jog against the S120 drive before the line goes back into production. On a midnight startup where this motor is the suspect, the S120 drive fault LED plus the parameterised motor ID is what actually points at the swapped lead or the encoder fault — the diagnostics path is on the drive side, not the motor, which is why a replacement motor without a fresh declaration pack still leaves the commissioning engineer guessing.