Fanuc Alarm PS990 SPL: ILLEGAL AXIS COMMAND

Fanuc Alarm PS990 SPL: ILLEGAL AXIS COMMAND
Fanuc Alarm PS990 SPL : ERROR

Fanuc Alarm Description
Fanuc 15i
An illegal axis was specified for spline interpolation or smooth interpolation.
This alarm is also generated when an axis other than those used for spline interpolation is specified. An “axis used for spline interpolation” refers to the axis specified in the block following the block in which the G06.1 G code is specified.
When smooth interpolation is executed, the axis specified by the G5.1Q2 G code is illegal.

Fanuc 15
The spline interpolation axis command is invalid. In NURBS interpolation by high–precision contour control using a RISC processor:
(1) An invalid rank was specified.
(2) No knot, or an invalid knot, was specified.
(3) Too many axes were specified.
(4) Another program error was detected.