Okuma Alarm-B 2429 MULTI-MACHINING CYCLE Y-axis mode
G191 was designated without selecting Y-axis mode, or designated on B turret.
Probable Faulty Locations
Y-axis mode is not selected.
Designation on B turret.
Measures to Take
1)Select the Y-axis mode (by executing G138).
2)Change the turret selection from B to A.