Fanuc 11m | Parameter List

The Fanuc 11M parameter list contains thousands of settings that control everything from basic machine axes to complex communication protocols. Because a full list is too large to display here, the most critical "common" parameters are categorized below. Critical Setup Parameters

0000–0030 (Setting Parameters): These include PWE (Parameter Write Enable), which must be set to 1 to change any other parameters. You can find instructions on enabling PWE on MachineMetrics.

1000–1100 (Axis Control): These define the number of axes, axis names (X, Y, Z), and whether an axis is linear or rotary.

1240–1241 (Reference Points): These store the machine coordinate values for the first and second reference points (Home positions). CNCMakers notes that 1240 is for the first point and 1241 for the second. I/O and Communication (RS-232)

To transfer programs, these parameters must match your PC settings:

5001: I/O device selection (0 for RS-232, 1 for Bubble Memory). 5110: Device type (usually set to 3). 5111: Stop bits (typically 2). 5112: Baud rate (e.g., 10 for 4800, 11 for 9600). Spindle and Tooling

3741–3743: These parameters set the maximum spindle speeds for different gear ranges. According to CNCMakers, you can modify these directly to limit RPM.

6700–6710: Used for part counting. Setting 6700#0 to 0 enables counting on M30/M02, as detailed by FactoryWiz. Diagnostic Monitoring

If the machine errors out, check the Diagnostics screen (DGN):

DGN 720: Indicates an overload (OVL) alarm. KFASLLC explains this often points to thermal issues or broken cables. Important Note on Backups fanuc 11m parameter list

The Fanuc 11M uses a battery to maintain these parameters. If the battery dies while the power is off, all parameters are lost. It is highly recommended to print a hard copy of your specific machine's parameter list or save it to a PC via RS-232.

Are you trying to fix a specific alarm or set up a new communication link?

The Fanuc 11M is a classic CNC control system widely used in milling machines. To optimize performance or perform maintenance, understanding the Fanuc 11M parameter list is essential. These parameters control everything from basic machine identity to complex servo and spindle behaviors. How to Access and Enable Parameter Editing

Before you can modify most parameters, you must enable "Parameter Write."

Select MDI Mode: Ensure the machine is in Manual Data Input mode.

Enable PWE: Push the SETTING soft key, find parameter 8000, and set bit #0 (PWE) to 1. A "Parameter Write Enable" alarm will appear; this is normal and expected.

Navigate to Parameters: Press the SERVICE soft key followed by the PARAM soft key to view the list. Fanuc 11M Parameter Categories

The Fanuc 11M organizes thousands of settings into specific numerical ranges. 1. General System and Communication (0000–5112)

These parameters manage the basic interface and RS-232 communication settings for DNC or program transfers. 0000: Basic settings like ISO/EIA code selection. The Fanuc 11M parameter list contains thousands of

5110: Device type (e.g., 1 or 3 for standard RS-232 devices). 5111: Stop bits (typically set to 1 or 2). 5112: Baud rate (e.g., 10 for 4800, 11 for 9600). 2. Servo and Axis Control (1000–2500)

Controls the physical movement of the axes, including travel limits and reference points. 1241: Coordinate value of the 2nd reference point. 1242: Coordinate value of the 3rd reference point.

1825–1830: Servo loop gain and error limits (often checked during servo alarms). 3. Spindle and Tool Settings (5600–6000)

These settings manage the main spindle motor and tool offsets.

5600+: Parameters related to spindle orientation and analog/binary outputs. 6000+: Tool offset and compensation settings. 4. Canned Cycles and Macros (6200–7000) Configurations for automated machining routines. 6200: Canned cycle parameters (drilling, tapping, etc.). 7000: Custom macro variables and settings. 5. Option Parameters (9100–9125)

These define which software features are enabled on the control. FANUC Second Reference Point - CNCmakers

Setting up or maintaining a control requires specific parameter knowledge to enable editing and configure communication. 1. Enabling Parameter Editing (PWE)

Before you can modify any parameters on a Fanuc 11M, you must enable "Parameter Write Enable" (PWE). Set to MDI Mode : Turn the mode selection dial to MDI. Access Settings : Press the function key on the MDI panel. Modify Parameter 8000 Parameter 8000 Change bit #0 to to enable editing.

: A "Parameter Write Enable" alarm will appear; this is normal and indicates the system is ready for changes. Squarespace 2. Communication Parameters (RS-232/DNC) After a control firmware mismatch or corrupted parameter

These parameters are essential for sending and receiving programs between the CNC and a PC. Squarespace Description Common Values Device Type / Specification (Standard Control Codes), (Standard) (Usually matches PC settings) Baud Rate (I/O Channel 1) (4800), or Input Device (I/O Channel 2) Stop Bits (I/O Channel 2) Baud Rate (I/O Channel 2) 3. Common System & Operation Parameters

These control machine-specific behaviors like axes, spindle limits, and offsets. Fanuc 10M-11M Communications Parameters - Squarespace

Read all the way through before performing ANY changes! 1. Select “MDI” mode of operation. 2. Flip the “Memory Protect” switch up, Squarespace Fanuc 10, 11, 12, & 15 RS-232 Parameters

3.5 Axis Inversion & Polarity

| Param | Bit | Function | | :--- | :--- | :--- | | 0060 | Bit 0 (X) | 0 = Normal, 1 = Reverse direction (X) | | 0060 | Bit 1 (Y) | Reverse direction (Y) | | 0060 | Bit 2 (Z) | Reverse direction (Z) |

Program Parameters

| Parameter | Description | | :--------- | :------------------------------ | | P2000 | Program numbering settings | | P2001 | Program sequence settings | | P2002 | Program interruption settings |

2. Parameter Ranges & Categories

The 11M uses a 4-digit or 5-digit parameter numbering system (typically 0000 to 9199, depending on options).

| Parameter Range | Category | Description | | :--- | :--- | :--- | | 0000 – 0059 | Option Parameters (NC) | Enables live tooling, rigid tapping, custom macros, DNC, etc. | | 0060 – 0089 | Axis Configuration | Stroke limits, axis direction, mirror image. | | 0090 – 0109 | Feedrate & Acceleration | Rapid traverse (G00), cutting feedrate limits (G01). | | 0110 – 0139 | Servo & Motor Parameters | Position loop gain, feedforward coefficient, backlash compensation. | | 0140 – 0159 | Reference Point | Grid shift, reference return direction, deceleration points. | | 0160 – 0199 | Spindle Parameters | Gear ratios, C-axis control, orientation stop position. | | 0200 – 0239 | Coordinate System | Absolute/incremental, diameter programming, I/J/K specifications. | | 0240 – 0259 | Tool Offset | Number of tool offsets, length/radius type, wear compensation. | | 0260 – 0299 | Automatic Operation | Single block, dry run, feed hold behavior. | | 0300 – 0319 | Editor & Program | Tape coding (ISO/EIA), punch code, program number lock. | | 0320 – 0359 | Communication (RS-232) | Baud rate, stop bits, parity, DC code control (Xon/Xoff). | | 0360 – 0399 | Diagnostic Parameters | Self-diagnostic thresholds, watchdog timers. | | 0400 – 0429 | Pitch Error Compensation | Compensation points per axis, interval, direction. | | 0430 – 0549 | SERVO PARAMETERS (Critical) | Requires IPL mode to change. (Motor model, current limit, velocity gain, PWM frequency). | | 0900 – 0939 | Option Parameters (High Security) | Hideable via parameter 10.4. Control software options. | | 5000 – 9199 | Macro & Customization | User macro variables, arguments, and local variables. |

9) When to consult OEM or Fanuc service

6. Servo and Motor Parameters

Crucial for the electrical tuning of the axis motors.

| Parameter # | Description | | :--- | :--- | | 1000 - 1002 | Inferred Position Detection.
Used for reference point return detection (grid shift). | | 1800 - 1802 | Servo Loop Gain.
Adjusts the stiffness of the servo. Standard is usually around 2000-3000. If this is set wrong, the servo will oscillate or alarm. | | 1803 - 1805 | Motor ID Code.
Identifies the specific Fanuc servo motor model (e.g., Model 10, Model 20, etc.) connected to the axis. | | 1850 - 1852 | Order 1 Servo Parameter.
Often related to velocity loop gain. | | 1890 - 1892 | Order 2 Servo Parameter.
Position loop gain constants. |

Input/Output Parameters

| Parameter | Description | | :--------- | :------------------------------ | | P3000 | Digital input port settings | | P3001 | Digital output port settings | | P3010 | Communication settings (e.g., baud rate, parity) |

2. Parameter Categories (Bit/Byte Format)

| Parameter Range | Category | |----------------|-----------| | 0000–0019 | Option parameters (bits) | | 0100–0199 | Axis control / servo parameters | | 0200–0299 | Operation / general settings | | 0300–0399 | Positioning / accuracy | | 0400–0499 | Feedrate / acceleration | | 0500–0599 | Spindle control | | 0600–0699 | Tool offset / compensation | | 0700–0799 | Coordinate system / G-codes | | 0800–0899 | Diagnostics / PWE / IPL | | 0900–0999 | PMC (PLC) parameters |