Fanuc 9900 Parameter List Instant

Understanding Fanuc 9900 Series Option Parameters In the world of FANUC CNC controls, the 9900 series parameters (often ranging from 9900 to 9999) are known as Option Parameters

Why? Because the 9900s are not tuning parameters—they are configuration parameters. An incorrect entry can: fanuc 9900 parameter list

Warning: Only modify parameters if you have the original manufacturer settings. Back up all data before proceeding. How to Enable Parameter Write Enable (PWE) on a Fanuc CNC Understanding Fanuc 9900 Series Option Parameters In the

Important Disclaimer: The Danger Zone

Do not treat the 9900 list as a troubleshooting playground. Go to parameter 8900 (on some models) or

Real-World Example: Partial Fanuc 9900 Parameter List (Series 31i-B)

Below is a sanitized example from a working 5-axis machining center:

• Go to parameter 8900 (on some models) or
• Press MDI, then SETTING, then change PWE to 1.

Spindle S4/S5 Output: Configures analog spindle control signals. 5 00100000

• 1200: Radius compensation type
• 1201: Tool length offset setting
• 1202: Feed rate setting (mm/min or inch/min)