If you are tuning a worn ballscrew, adjusting 1860 without adjusting 1848 will usually result in a "bump" feeling during reverse motion rather than a smooth pickup.
bits (APC and APZ) are toggled to set a new home position, the CNC automatically calculates and populates Parameter 1860. : It is an axis-specific parameter, meaning each axis ( , etc.) has its own unique 1860 value. en.industryarena.com Common Maintenance Scenarios Reference Position Loss fanuc parameter 1860 full
Turn back to 0 and press RESET to clear any remaining layout flags. Troubleshooting Parameter 1860 Discrepancies Probable Cause Corrective Action Parameter 1860 shows 0 If you are tuning a worn ballscrew, adjusting
The friction in the machine guide ways may be inconsistent. Ensure the machine is properly lubricated before tuning 1860. After rebooting, set PARAMETER WRITE back to 0
After rebooting, set PARAMETER WRITE back to 0 and press RESET to clear the alarm. Pro-Tip: The Grid Shift Limit
If you tell me your exact Fanuc control model and software version (for example "Fanuc 0i-MF v9.07" or "Fanuc 21i-TB"), I will give the exact definition and permitted values for parameter 1860.
: Detection Units (varies based on the machine's configured increment system, typically 0.001 mm or 0.0001 inch). The Architecture: Grid Shift vs. Position Loss