Fagor alarm 1026: Wrong circular path with the programmed radius
CNC 8060/8065/8070 CNC error · Fagor 8060/8065/8070
What it means
In circular interpolation programmed with R, the radius value is geometrically inconsistent with start/end points, typically because it is too small to span the chord between them. The interpreter cannot construct the arc, so the block is rejected. Use center-format (I/J/K) programming for arcs close to half circles.
Likely causes
- R smaller than half the distance between endpoints
- endpoint coordinates mistyped
- radius/diameter confusion on lathe X axis
Need the part urgently?
Send us alarm 1026 with your machine details — typical RFQ turnaround is 24–48h.