Okuma Alarm B-2936 – No Program

The Okuma alarm B2936 indicates that the CNC control cannot find the required program. This alarm usually appears when the loader (robot) program or the requested subprogram is missing, incorrectly referenced, or not available in the control memory.

The error often occurs during automatic operation when the machine attempts to call a program that does not exist or cannot be accessed. It may also happen if the program number is incorrect, the file has been deleted, or the storage location is not available.

Possible causes of Okuma Alarm B2936

• Loader or robot program is missing

• Requested subprogram does not exist in memory

• Incorrect program number or program call

• Program file deleted or not transferred to the control

• Wrong path or storage location for the program

• Communication issue between loader system and CNC control

To resolve this alarm, check whether the required program or subprogram is present in the CNC control memory and verify that the correct program number is being called. If the problem persists, the program structure and loader configuration should be reviewed.