Code Name Causes Possible Solutions dWAL DriveWorksEZ Alarm There was an error in the DriveWorksEZ program. Examine the DriveWorksEZ program and remove the cause of the error. This is not a drive fault. Note: If the drive detects this error, the terminal assigned to H2-01 to H2-04 = 10 [MFDO Function Select = Alarm] will be ON.