Fanuc | 11m Parameter List Work

The Role of the Fanuc 11M Parameter List in CNC Precision and Maintenance

• 200-209: Spindle settings (e.g., spindle type, direction, and speed)
• 210-219: Spindle speed and torque settings

7. Critical Warnings

• No PWE bit on 11M: Unlike later models (0/16/18), some 11M parameters are edited in E-stop, but you must cycle power for many changes.
• Battery loss: If CMOS backup battery (BR-2/3A or BR-2/3AE) fails, all parameters and programs are lost. Replace battery every 1–2 years with power ON.
• Backup procedure: Use RS-232 (DNC) to output all parameters:
  PUNCH → ALL → EXEC while in EDIT mode.
• Do not change SERVO parameters (0430-0549) unless you have factory servo tuning sheets – this can cause violent axis movement.

5. Backup Procedure Before Changes

1. Press PARAM → output via RS-232:

   PUNCH 0000 9999 (output all parameters)
   

2. Write down or photograph diagnostic parameters 200–299 and pitch error compensation (if used).
3. Save to PC using DNC software (e.g., CIMCO, NCLink).

3. Feedrate Parameters

Control cutting feed rates and clamping. fanuc 11m parameter list