Fanuc 9900 Parameter List |top| | 100% POPULAR |

In the world of Fanuc CNC maintenance, Parameter 9900 and its surrounding series (9900–9999) are often considered the "engine room" of the control's configuration. These are the Option Parameters, which dictate what high-level features—like 4th-axis control, helical interpolation, or Macro B—are actually active on your machine. 🛠️ Essential Fanuc 9900 Series Parameters

On modern "i" series controls (like the 16i, 18i, and 21i), the 9900 series is used primarily for system-level hardware and option configuration. Parameter # Common Function / Meaning 9900

Number of Axes/Amps: Often used to define the number of servo amplifiers the control should recognize. 9921

Software Version: Displays the system software series information. 9930

Macro B Options: Often tied to enabling custom macro variables and logic. 9937

Helical Interpolation: Enables circular movement across three axes simultaneously. 💡 Troubleshooting with Parameter 9900

One of the most practical uses for Parameter 9900 is resolving Alarm 5136 (Number of Amps is Small). This alarm occurs when the CNC expected more servo drives than it found on the fiber optic link.

The Fix: You can temporarily change Parameter 9900 to a lower value (e.g., 1 or 2) to bypass missing drives while testing individual servo modules. The Workflow: Enable Parameter Write Enable (PWE). Change 9900 to the number of drives currently connected.

Power cycle to see if the alarm clears for the remaining healthy drives. ⚠️ Important Considerations

Visibility: On Fanuc controls made after mid-2006, the 9900 series parameters are often hidden or stored on a FROM card, making them impossible to edit through the standard MDI screen.

The "900" Series vs. 9900: Older controls (like the 0-M or 0-T) used the 900 series (900–939) for options. If you see 8-bit binary strings (e.g., 00010000), you are likely looking at these legacy option bits.

Backup First: Changing these parameters can render a machine inoperable or cause unpredictable motion. Always perform a full SRAM backup before touching the 9900 series. How to Proceed

If you need to unlock a specific feature or clear a hardware alarm, let me know: Your Control Model (e.g., 18i-MB, 0i-TF, or 16M) The exact alarm code you are seeing

The specific function you are trying to enable (e.g., 4th axis, Ethernet, or High-Speed Machining)

I can provide the specific bit-level settings or the Parameter Manual references for your exact system. Fanuc Parameter Options Overview | PDF | Computing - Scribd

The Fanuc 9900 parameter series (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

For Fanuc controls manufactured after 2006, these parameters are often hidden from the standard parameter screen and are instead stored in Flash ROM (FROM). This ensures they remain intact even if the main memory is wiped. They are typically accessed through a specific diagnostic screen rather than the standard system parameter list. Common 9900 Series Parameters

These parameters are bit-level settings where each "bit" (a 1 or 0) enables a specific software option. Parameter No. Typical Function / Feature 9900 Often sets the total number of axes enabled on the machine. 9920.0

Enables Fixed Cycles (Canned Cycles) for milling or turning. 9920.1 Allows G10 Tool Offset input via the program. 9920.2 Enables Manual Pulse Generator (MPG) feed. 9921.0-4

Configures Program Storage Size (e.g., 40m, 80m, 160m, up to 640m). 9922.2 Enables Constant Surface Speed Control (G96). 9922.4 Enables Model Data Input for conversational programming. How to Edit Fanuc Parameters

Editing any system parameter, especially option parameters, requires enabling Parameter Write Enable (PWE).

Switch to MDI Mode: The machine must be in Manual Data Input (MDI) mode or an emergency stop state.

Access the Setting Screen: Press the SETTING function key on the MDI panel.

Enable PWE: Find the "PARAMETER WRITE" field and change the value from 0 to 1.

Confirm Alarm: The machine will trigger a "P/S 100" alarm (Parameter Write Enable is on). This is normal and indicates you can now make changes. fanuc 9900 parameter list

Enter Parameters: Navigate to the SYSTEM screen to find the specific 9900-series parameters. Critical Warnings and Best Practices

Legal & Warranty Implications: Modifying 9900-series parameters is technically enabling paid software options. Legally, these must be purchased from Fanuc or the machine tool builder. Unlocking options without a license can void warranties or service agreements.

Backup Everything: Before changing a single bit, perform a full backup of all parameters (NC, PMC, and Diagnostics) to a PCMCIA card or USB drive.

Expert Guidance: Changing an option parameter can significantly alter machine behavior. If you are unsure, consult resources like the Fanuc 0i Parameter Manual or community forums like Practical Machinist for specific machine configurations.

The Fanuc 9900 series parameters are specifically categorized as Option Parameters for controllers like the Series 16i, 18i, and 21i. These parameters determine which software features and hardware capabilities are enabled on your machine. Key Insights on 9900 Parameters

Purpose: They unlock specific CNC functions such as additional memory, high-speed machining, tool life management, and multi-axis control.

Visibility: On older "i" series controls, they appear on the standard parameter screen. On controls manufactured after mid-2006, they are often stored on a FROM card and may only be viewable through diagnostic screens.

Access: Because these represent paid options, they are typically protected. Changing them incorrectly can lead to machine malfunction or "unpredictable movement". Common 9900 Series Parameters & Options

While the exact bit definitions vary by specific controller model (e.g., ), they generally cover the following areas: Parameter Range Typical Function Category Examples of Options 9900 Axis Configuration Number of controlled axes. 9901 - 9910 Memory & Language

Tape memory additions (320m/120m), Japanese/German/French display. 9911 - 9925 Machining Cycles

Program restart, 3rd/4th reference point return, High-speed cycles. 9930+ Specialized Features

Tool offset selection (G45-G48), Cylindrical interpolation, Mirror imaging. How to View or Edit Parameters

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

Introduction to FANUC 9900 Parameter List

The FANUC 9900 series is a line of CNC (Computer Numerical Control) systems renowned for their reliability, precision, and versatility in controlling machine tools. These systems are widely used in various manufacturing processes, including milling, turning, grinding, and more. One of the critical aspects of configuring and optimizing FANUC 9900 CNC systems is understanding and correctly setting their parameters. Parameters in CNC systems like FANUC 9900 are essential as they define the machine's operational characteristics, limits, and functionalities.

Understanding FANUC 9900 Parameters

Parameters in the FANUC 9900 system are numerical values that control various aspects of the CNC machine's behavior. These include, but are not limited to:

1. Machine Parameters: These define the basic configuration of the machine, such as the number of axes, the type of interpolation (e.g., linear, circular), and the maximum feed rate.

2. Input/Output Parameters: These control the configuration of input/output signals, such as those for tool changers, coolant systems, and spindle control.

3. Setting Parameters: These influence how the machine operates during processes like positioning, interpolation, and the execution of canned cycles.

4. Protection Parameters: These are used to set limits on machine operations to prevent accidental or unauthorized actions, enhancing safety and security.

List of FANUC 9900 Parameters

While a comprehensive list of FANUC 9900 parameters can be extensive and varies depending on the specific model and configuration of the CNC system, here is a general overview of some key parameters:

• #1000-#1015: These often relate to basic machine settings, such as pulse per millimeter/inch, and maximum feed rates. In the world of Fanuc CNC maintenance, Parameter

• #1100-#1120: Typically involve settings for the spindle, including maximum and minimum speeds.

• #1300-#1320: May involve parameters for controlling the coolant, lubrication systems, and other auxiliary functions.

• #2000-#2030: Could be related to the configuration of additional axes or special functions.

Importance of Correct Parameter Setting

Setting the parameters of a FANUC 9900 CNC system correctly is crucial for several reasons:

1. Optimal Performance: Correct parameters ensure that the machine operates efficiently and accurately, producing high-quality parts.

2. Safety: Misconfigured parameters can lead to unsafe operating conditions, potentially causing damage to the machine, tools, or even injuries to operators.

3. Preventing Damage: Incorrect settings might cause the machine to exceed its physical limits, leading to component wear or failure.

Accessing and Modifying Parameters

Accessing and modifying parameters on a FANUC 9900 system typically requires a specific set of procedures:

1. Authorized Access: Ensure you have the necessary permissions and follow safety protocols.

2. Diagnostic Mode: Often, entering a diagnostic mode or a parameter setting mode is required.

3. Parameter Number: Input the specific parameter number you wish to modify.

4. Value Change: Enter the new value and validate it according to the machine's protocol.

Conclusion

The FANUC 9900 parameter list is extensive and specific to each CNC machine's configuration and operational requirements. Understanding and correctly setting these parameters is vital for the safe, efficient, and accurate operation of the machine. It is always recommended to consult the machine's manual or contact a FANUC professional for specific guidance on parameter settings to avoid errors and ensure optimal performance.

In Fanuc CNC systems (such as 16i, 18i, 21i, and 0i series), the 9900 series parameters are designated as Option Parameters. These control the activation of specific software features and hardware functions that are typically sold as add-on options by Fanuc. Overview of Fanuc 9900 Option Parameters

Unlike standard system parameters, 9900 series parameters (and their predecessors, the 900 series) are often protected or hidden to prevent unauthorized activation of paid features.

Pre-July 2006 Controls: Parameters in the 9900 range were often visible and editable on the machine's parameter screen.

Post-July 2006 Controls: Fanuc "locked" these parameters. They are typically stored in FROM (Flash ROM) and viewed via a diagnostic screen rather than the standard parameter screen. Modifications usually require a specific authorization file provided by Fanuc after the option is purchased. Common 9900+ Series Parameters & Functions

The 9900 parameters are bit-configured (0 or 1) to enable specific features. Below is a sample of common functions typically found in these tables: Parameter Range Function Examples Memory Options

Additional part program storage (e.g., 40m, 80m, 320m memory expansion) Control Features

Constant Surface Speed Control (G96), Tool Life Management, Macro B, Rigid Tapping Axes & Motion

Additional axis control (4th/5th axis), Axis mirroring, Circular interpolation Display/Interface Machine Parameters: These define the basic configuration of

Graphics display, Conversational programming (Manual Guide i), Background editing How to Access and Edit (General Procedure)

If your control allows editing (pre-2006), the process generally involves:

Enable PWE: Go to the SETTING screen and set Parameter Write Enable (PWE) to 1 (this will trigger an alarm, which is normal).

MDI Mode: Ensure the machine is in MDI mode or Emergency Stop.

Navigate: Use the SYSTEM function key and then the PARAM soft key to find the 9900 series.

Enter Value: Change the required bit and press INPUT. A power cycle is usually required for changes to take effect. Reference Documentation

Detailed lists for specific control models are often found in official Fanuc Parameter Manuals, such as: fanuc parameter detail 9900 to 9998 | Practical Machinist

Title: Understanding the FANUC 9900 Series Parameters: Function, Access, and Safety in CNC Maintenance

Author: [Generated AI / Technical Writer] Date: October 2023

Abstract: The FANUC 9900 series parameters represent a critical yet restricted set of configuration data within FANUC CNC (Computer Numerical Control) systems. Unlike standard parameters (1000–9000), the 9900 range governs high-level hardware configuration, axis linkage, and software option enablement. This paper provides a comprehensive list of common 9900 parameters, explains their functional domains, details the security protocols required for modification, and outlines safety procedures to prevent unrecoverable machine states.

Why is the 9900 Parameter List So Guarded?

Fanuc intentionally restricts access to parameters 9900–9999. On most controls (Series 0i, 15i, 18i, 21i, 30i, 31i, 32i, and 35i), you must:

1. Have full NC system key status (often requiring a physical or software key)
2. Enable PWE (Parameter Write Enable) = 1
3. Often enter a special password or unlock code provided by the MTB (Machine Tool Builder) or Fanuc.

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

• Disable the emergency stop circuit.
• Change the number of controlled axes.
• Alter the handshake protocol between the CNC and servo drives.
• Remove licensed options you paid for (temporarily or permanently).

Always back up your existing parameters before touching the 9900 range.

Defaults & Factory Reset

• 1900 — Load Factory Defaults (write 1 to reset)
• 1901 — Save Current Parameters to EEPROM
• 1902 — Verify Parameter Checksum (read-only)

What is the Fanuc 9900 Parameter List?

In Fanuc controls (specifically Series 16, 18, 21, 16i, 18i, and 21i), the 9900 parameter range is reserved for System Configuration and Option Activation.

Think of the 9900 parameters as the "master keys" to the control. While standard parameters determine how the machine moves (speeds, feeds, accelerations), the 9900 parameters determine what the machine is capable of doing.

What Are Fanuc 9900 Parameters?

The 9900 range is not a fixed, universal list across all Fanuc models. Instead, it is a high-number range reserved for:

• Servo motor ID codes – Tells the CNC which type of servo motor is connected to each axis.
• Spindle motor ID codes – Tells the CNC the spindle motor model and sensor type.
• Amplifier (drive) configuration – Matching the CNC with the correct servo amplifier (e.g., Alpha i, Beta i).
• High-resolution position coder settings – For scale feedback or serial pulse coders.

In older Fanuc controls (e.g., 0-Mate, 0-TC), 9900 parameters stored basic axis configuration. In modern controls, much of this moved to system parameters (1010, 1020, 2020, etc.) or CNC initialization data, but the 9900 range still appears in some maintenance manuals for legacy systems.

Important: On many newer Fanuc models (Series 0i-D and later), parameters 9900–9999 may not exist. Instead, use Servo Setting Screen or Spindle Setting Screen (typically under SYSTEM → Parameter → Servo/Spindle).

1. Digital Servo Initialization (The "Gear" Setup)

These parameters tell the CNC what kind of motor is attached to the axis.

• Parameter 9900 (Motor ID Code):

  • This is arguably the most critical parameter in this series. It assigns a specific ID number to the motor (e.g., $\alpha$ series, $\alpha i$ series).
  • Example: If the machine has an $\alpha i$ S300/2000 motor, this parameter will hold the specific code corresponding to that model.
  • Function: If this parameter is incorrect, the amplifier will not "ignite" or will immediately throw an alarm (usually SV0401 or SV0410).

• Parameter 9901 (Motor Type):

  • Defines the motor series type (e.g., Linear motor vs. Rotary motor).

• Parameter 9904 (Motor Orientation/Direction):

  • Sets the standard rotation direction of the motor relative to the command.

2. Servo Loop Gain & Tuning (9900 Series)

These parameters adjust how "stiff" or "responsive" an axis is. They determine the accuracy of cutting contours.

• Parameter 9906 (Velocity Loop Gain):

  • Sets the responsiveness of the velocity loop. High values increase stiffness but can cause vibration (hunting) if the machine has high friction or backlash.
  • Often adjusted when a machine is leaving "overshoot" marks on a corner during a cut.

• Parameter 9914 (Position Loop Gain - Standard):

  • Usually set to a standard value (like 3000 or 5000 in metric units).
  • Important: For a machine to perform G107 (Helical Interpolation) or synchronous tapping effectively, the Position Loop Gain for the Spindle and the Z-axis must match perfectly.

• Parameter 9915 (Position Loop Gain - Rigid Tap):

  • Specific settings for the rigid tapping cycle. If the machine is "threading" incorrectly or squealing during a tap cycle, this parameter is often the culprit.