# ID 120117

Spline interpolation requires at least 2 axes.
Description | Before activation of spline interpolation at least 2 axes must be available in CNC channel. For more information on spline interpolation and axis exchange see [PROG// Section: Akima spline interpolation] [PROG// Section: Axis exchange commands]
Response | Class | 2 | Program execution stop.
Solution | Class | 6 | Make sure that there are at least 2 axes before CNC start-up by configuring the axes accordingly, or if there is already an axis in the system, exchange it for a channel via #CALL AX.
Parameter | %1: | Current value [-]
Current active number of axes.
%2: | Lower limit value [-]
Minimum permissible number of axis.
Error type | 1, Error message from NC program.