Okuma Alarm-B 2478 No workpiece coordinate mode command
For the machine with 2-spindle model or pickoff function, the machining coordinate mode command (G140-G143) is not designated at the beginning of the program.
Program restart was attempted by the sequence number search from a sequence other than the sequence for machining coordinate mode command (G140-G143).
Probable Faulty Locations
Measures to Take
Enter G140-G143 at the top of the program.