Fagor alarm 2027: SERCOS chip RAM memory error.
CNC 8055 hardware/feedback error (analog axes) · Fagor 8055/8055i
What it means
The startup diagnostic detected a defect in the RAM of the optional SERCOS interface chip inside the CNC. On mixed installations (analog axes plus a SERCOS board) this blocks correct ring initialization; the CNC inhibits motion. Press any key to acknowledge as indicated by the alarm text.
Likely causes
- failed SERCOS interface chip/board
- board damaged by heat or electrical stress
- poor board seating in modular 8055 racks
Triage note: Exchange of the SERCOS board/chip goes through Fagor service.
Need the part urgently?
Send us alarm 2027 with your machine details — typical RFQ turnaround is 24–48h.