: Hidden settings like Inch/Metric conversion (Parameter 900, Bit 5) and specialized G-code sets are also housed here. The Gateway: PWE and Safety Fanuc O-T Parameter List Overview | PDF - Scribd

This helps the control identify the generation of the servo system.

It must be stressed that a universal "master list" for the 900 parameters does not exist. The specific bit assignments for parameters 900, 901, 902, etc., can and do vary between different revisions of the control (e.g., 0T-A, 0T-B, 0T-C, 0T-D) and from one machine builder to another. The list below is a composite of commonly referenced settings compiled from service manuals, engineering forums, and maintenance guides. It is intended as a , not a set of values to arbitrarily change on your machine.

In many Fanuc systems, programs in the 9000-range (like subprograms for tool changes) are protected by parameters like 3202 (specifically bit 1/NE9). While this is not directly in the 900-parameter series, it is often confused with 900-series option unlocking. Safety Disclaimer

Turn off the main machine power breaker, wait 30 seconds, and restart. The new options will now be active. High-Value Upgrades Explained Custom Macro B (Parameter 901, Bit 1)

By understanding the Fanuc OT 900 parameter list and following best practices, users can optimize system performance, reduce errors, and improve overall productivity.

Unlike standard parameters (which adjust feedrates or offsets), 900 parameters tell the CNC control:

While every machine is configured differently by the builder (OEM), here are the most common bit definitions for the 0T-A, 0T-B, and 0T-C controls: Parameter 900 Canned Cycles (G70–G76) Bit 1: G70-G76 Canned Cycles (alternate) Bit 2: Circular Interpolation (G02/G03) Bit 3: Sub-program calls (M98/M99) Parameter 901 Bit 1: Tool Geometry/Wear Offsets Bit 3: Custom Macro A Bit 6: Inch/Metric Conversion (G20/G21) Parameter 902 Bit 1: Constant Surface Speed Control (G96/G97) Bit 5: Background Editing Parameter 907 Bit 0: 48 pairs of tool offsets Bit 3: 64 pairs of tool offsets 📂 The Importance of the "Parameter Sheet"

Fanuc uses the 900-series parameters (specifically 900 to 939 depending on the exact sub-model like 0T-A, 0T-B, or 0T-C) to manage optional software functions.

This parameter defines how the spindle amplifier communicates with the CNC.

If you are trying to resolve a specific issue or unlock a particular feature, I can provide more targeted details. Could you tell me: The of your control? (e.g., 0T-B, 0T-C)

Enables specific canned cycles (e.g., G71-G76) and specialized programming features.