Fanuc 9000 Parameters List · Limited
Unlike standard parameters (which control things like stroke limits, feed rates, and servo motors), the 9000-series parameters are typically used to control System Functionality, Option Activation, and Macro Variables.
⚠️ IMPORTANT WARNING: Changing parameters—especially in the 9000 range—without proper documentation or a backup can lock you out of the control, disable critical functions, or cause the machine to behave unpredictably. Always write down the original values before making changes.
Part 7: How to Find Your Machine’s Specific Fanuc 9000 Parameters List
Because the list varies by model and builder, follow this flowchart of knowledge: fanuc 9000 parameters list
- Check the CNC Info: Press
SYSTEM > [FIND] (or [VERSION]). Note the Series (0i, 31i) and PMC version.
- Search the MTB’s Documentation: Look for a document titled "Machine Tool Parameter Manual" or "Option Function List." Do not rely on generic FANUC manuals.
- Use the "All Parameters" Printout: On the FANUC control, go to
[PARAM] > [OPRT] > [PUNCH] > choose ALL PARAMETERS. Output to a memory card or RS-232. Open the text file and search for "9000."
- Contact FANUC America/Japan: Provide your CNC’s serial number. They can issue a legal "Option Parameter Table" for a fee (typically $200-$500).
Fanuc 9000 Parameters List — Targeted Treatise
Part 5: Step-by-Step Guide to Enabling a 9000 Parameter
Let’s say you have purchased a Custom Macro B unlock code from a licensed FANUC distributor. You do not "install" software; you flip a bit.
Example: Enable Custom Macro B on FANUC 18i Unlike standard parameters (which control things like stroke
- E-Stop the machine.
- Go to MDI mode.
- Press
SYSTEM > PARAM > Set P3290=1 (to see 9000s).
- Search for P9000.
- The display shows:
9000 00100000 (Bit 3 is 0 = OFF).
- Type
9000 press INPUT.
- Change the binary number to
00001000 or 00101000 depending on other options.
- Press
INPUT.
- Cycle power on the CNC.
- Verify: Go to MDI, type
#100=5 and press cycle start. If no alarm (PS0110), Macro B is active.
Failure: If the CNC rejects the write (alarm: PS0420), the parameter is locked by an S3C or S3U key (physical or software lock). You cannot bypass this legally.
Method 2: Back Up Your Existing Parameters First
Before modifying anything, do a full parameter output: Part 7: How to Find Your Machine’s Specific
- Set PWE = 1.
- Go to
SYSTEM > ALL I/O.
- Set device =
MEMORY CARD or RS232.
- Punch all parameters including 9000 range.
- Save the file. This is your unique list.
Practical troubleshooting checklist (parameter-focused)
- Reproduce alarm and note alarm number and symptom.
- Inspect related parameter groups (axis config, soft limits, home parameters).
- Check encoder/scale parameter vs mechanical travel — confirm counts-per-unit.
- Verify servo gains and damping if oscillation or instability is present.
- Confirm I/O mapping parameters for missing or stuck inputs.
- If recent parameter writes occurred, compare with backup and roll back if needed.
- When uncertain, reduce feed/accel parameters to safe values and re-test.
Golden Rules:
- Never change a 9000 parameter unless you have a written record of its original value.
- Request the "Option Parameter List" from your MTB at machine purchase.
- Back up all parameters first (P1045 for SRAM backup).
Q4: Why does my 9000 list show only zeros even for enabled options?
A: Some options are encoded in a checksum block (4000-4999 range) or locked by Fanuc’s "Option Key" system (requires paid license).