| Parameter | Bit 7 | Bit 6 | Description | | :--- | :--- | :--- | :--- | | 9100 | 0 | 1 | Enables 2nd Axis (X) | | 9101 | 1 | 0 | Enables Constant Surface Speed (CSS) | | 9102 | 0 | 0 | Disables Helical Interpolation |

However, three decades later, one of the most common cries for help on machining forums is: “Where can I find the Fanuc 10T Parameter Manual?” or “I lost my parameters; how do I get my lathe running again?”

This article serves as your comprehensive roadmap. We will explore what the Fanuc 10T Parameter Manual is, why it is critical for your machine’s survival, how to interpret its cryptic data tables, and where to source legitimate documentation. When a Fanuc 10T controller loses battery backup or suffers a memory board failure, the alarm "ROM PARITY" or "BAT ALARM" appears. Without the parameters, your $100,000 lathe becomes a very heavy doorstop.