Okuma Alarm P-0846 – Thermal Deviation Compensation Backup Data File Read

Okuma Alarm P-0846 (Thermal Deviation Compensation Backup Data File Read) occurs when the backup file for thermal deviation compensation (LNCUF) cannot be found or the file format/type is incorrect. This alarm is typically caused by missing or corrupted compensation data, incorrect file loading, system restore issues, or parameter/data mismatch after control replacement or software updates.