For most daily operations, a machinist will never need to look at 1860. However, it becomes vital in two specific scenarios: Recovery from APC Alarms
: Different tool materials and geometries have optimal feed rate ranges. Parameter 1860 allows for the adjustment of feed rates to match these optimal ranges, potentially extending tool life.
Errors related to Parameter 1860 usually manifest as positioning inaccuracies or specific servo alarms. fanuc parameter 1860
In systems where parameter 1860 controls two-stage backlash acceleration, incorrect values may cause either excessive shock or insufficient compensation.
When the FANUC control boots up, it reads to see what kind of hardware is attached. It then checks Parameter 1815 Bit 5 to see if it should process that hardware as an absolute system. If both match, it checks Parameter 1815 Bit 4 to verify if the saved position coordinates are valid or if the machine requires a zero-point calibration. Common Scenarios Requiring Parameter 1860 Adjustments For most daily operations, a machinist will never
The machine is physically moved to its correct home position.
If you are changing or verifying feedback settings, you will almost always need to look at this trio: Errors related to Parameter 1860 usually manifest as
Are you trying to (like an APC or servo error) or adjust accuracy ? Which Fanuc series is it? (16i, 18i, 21i-T/M etc.)
After completing this procedure, APZ should equal 1 to confirm successful synchronization.