# ID 120254

Circular blocks not allowed while spline interpolation is active.
Description | Depending on selected spline type, only specific path preparatory functions are permitted. For example, when B-spline interpolation is active, only linear motion blocks G00 and G01 are permitted. For more information on spline function, see [PROG// Section: B spline interpolation].
Response | Class | 2 | Program execution stop.
Solution | Class | 6 | Either use Akima spline type or do not program circular blocks.
Error type | 1, Error message from NC program.