Fagor alarm 075: Feedback error at connector A1
Fagor legacy CNC error (8025/8040/8020) · Fagor legacy
What it means
Hallmark legacy feedback alarm: the axis-position feedback loop wired to feedback connector A1 delivers no valid signal. Codes 075-078 map identically to connectors A2-A5, so the number tells you which axis loop went blind. The CNC halts with internal emergency since it cannot track position.
Likely causes
- broken linear scale or encoder, or its cable
- +5 V sensor supply shorted by a crushed cable
- loose connector at the CNC feedback input
Triage note: Swap the suspected feedback cable with a neighboring axis: if the alarm number moves with the cable, the cable/scale is guilty; if it stays, the CNC input stage is.
Need the part urgently?
Send us alarm 075 with your machine details — typical RFQ turnaround is 24–48h.