Fanuc 9900 Parameter List ((better))

Understanding Fanuc 9900 Series Option Parameters In the world of FANUC CNC controls, the 9900 series parameters (often ranging from 9900 to 9999) are known as Option Parameters

  • 1000: Number of controlled axes
  • 1001: Number of simultaneous interpolation axes
  • 1002: Feed rate type (mm/min or inch/min)
  • 1003: Interpolation type (e.g., linear, circular)

Based on typical Fanuc configurations, the bits for parameter 9900 often control foundational G-code and hardware behaviors: Bit 0: Canned Cycles Bit 1: G10 Program Input of Offset Bit 2: Mechanical Handle Feed Bit 3: Manual One Pulse Generator Control Bit 5: Inch / Metric Conversion Bit 6: Special G-Code Security and Access fanuc 9900 parameter list

4. Access Methods and Security

4.1 Normal Parameter Screen (Hidden)

In MDI mode, with PWE=1, typing parameters 9900–9999 often shows “****” or “0”. To view: Understanding Fanuc 9900 Series Option Parameters In the

In the world of Fanuc CNC controls, parameters are the "DNA" of your machine. While many operators are familiar with common adjustments for spindle speeds (Parameters 3741–3743) or rapid traverse rates (Parameter 1420), things get a bit more mysterious when you cross into the 9000 series. 1000: Number of controlled axes 1001: Number of

Modifying 9000-series parameters without a valid option authorization code from Fanuc can lock your controller or cause severe machine malfunction. Always backup your current parameters ( backup) before attempting changes. 1. Function and Purpose

  • Servo gain, damping, filter time constants, feedforward terms.

Case 2: Enabling Rigid Tapping

If your machine does not rigid tap (no floating tap holder required), check:

  1. Enter the 9900 parameter list.
  2. Compare with a saved backup (from before failure).
  3. Manually re-enter each option bit.
  4. Cycle power – the option should reappear.