Fanuc 9900 - Parameter List

You replaced a failed Fanuc main board. Now the machine thinks it is a standard 3-axis lathe instead of a 5-axis mill. You must:

| Parameter | Description (Typical) | |-----------|----------------------| | | Servo motor ID for the 1st axis (X) | | 9901 | Servo motor ID for the 2nd axis (Y/Z) | | 9902 | Servo motor ID for the 3rd axis | | 9903 | Servo motor ID for the 4th axis (optional) | | 9904 | Spindle motor ID (main spindle) | | 9905 | Spindle motor ID (2nd spindle, if present) | | 9906 | High-resolution setting / pulse coder type | | 9907 | Amplifier type code (Alpha/Beta series) | | 9908 | Axis number assignment (mapping physical drives to logical axes) | | 9909 | Acceleration/deceleration time constant for spindle | | 9910 | Servo loop gain setting (related to HRV) | fanuc 9900 parameter list

Unlocking Canned Cycles , Custom Macros , or Helical Interpolation . You replaced a failed Fanuc main board

Based on typical Fanuc configurations, the bits for parameter 9900 often control foundational G-code and hardware behaviors: Canned Cycles Bit 1: G10 Program Input of Offset Bit 2: Mechanical Handle Feed Bit 3: Manual One Pulse Generator Control Bit 5: Inch / Metric Conversion Bit 6: Special G-Code Security and Access Based on typical Fanuc configurations, the bits for

on the control. For example, changing the value from 4 to 3 might be used to disable a 4th axis. Visibility

On controls manufactured after July 2006 , Fanuc significantly restricted access to the 9900 series.