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Assigns alphabetic characters to specify the name of each control axis. 3. Feedrate and Interpolation Settings (1400–1600)
: A common pitfall when backing up parameters is that the 9000 series parameters are often NOT included in a standard parameter output. For many older systems, you must follow a specific procedure to ensure they are saved, such as holding down the "EOB" (End Of Block) key while pressing the output start button.
Below is a selection of commonly cited 9900-series bits for the 16i/18i/21i controls: Parameter.Bit Description Tool offset input with G10 9920.5 Inch/Metric conversion 9922.2 Constant surface speed control 9922.6 Custom Macro A 9925.3 Look-ahead control (High-speed machining) 9926.7 External tool compensation 9937.4 Extra Macro Variables How to Check Your Current Options fanuc 9900 parameter list
These fields define how the internal flash and volatile memory store NC programs, tool offsets, and macro variables.
Unlike other parameter groups, the 9900 list is considered a trade secret shared between FANUC and the machine tool builder (MTB). This is why you won't find an official, publicly published "FANUC 9900 Parameter Manual." The specific values and even the existence of certain bits are customized per machine model and its purchased options. Assigns alphabetic characters to specify the name of
Understanding how these parameters function is critical for maintenance technicians, CNC programmers, and engineers looking to optimize machine performance or troubleshoot system-level faults. What are FANUC 9900 Parameters?
FANUC 9900 series parameters are the system option parameters used to enable or disable specific software features, options, and advanced control functions on FANUC CNC controls (such as the Series 0i, 16i, 18i, 21i, and 30i/31i/32i). Unlike standard user parameters that control axis speeds or grid shifts, the 9900 series dictates the core capabilities of your machine tool. For many older systems, you must follow a
This report provides an overview of the Fanuc 9900–9999 series parameters , which are primarily used to define the options and software features installed on Fanuc CNC controls
The (specifically 9900 to 9999) represents the core option parameters for modern Fanuc CNC systems, including the 16i, 18i, 21i, and 0i series . Unlike standard machine parameters that control speeds or feeds, the 9900 series acts as a digital "unlock key" for factory-installed software features. Understanding the 9900 Parameter Series