Fanuc: Parameter 1860 Full [patched]
If you can tell me the , which axis is causing trouble (X or Y), and what the surface finish looks like (protrusion or gouge), I can offer a more specific, tailored recommendation for tuning the parameter.
: Detection Units (Least Command Increments, typically Valid Data Range : -99999999negative 99999999 +99999999positive 99999999 Step-by-Step Parameter Modification Procedure
Changing servo parameters can cause axis runaways or crashes. Clear the machine work zone and be prepared to hit E-STOP immediately.
Photograph the parameter screen for 1860, 1850, 1851, and 1815 (APC/APZ settings). fanuc parameter 1860 full
This appears if you enter a value outside the allowable range for your axis configuration. Check your machine's specific Fanuc manual.
What are the stored in parameters 1860 and 1825?
: 2-Word / Signed Double Word (depending on system resolution). If you can tell me the , which
FANUC Parameter 1860 is a fundamental internal calculator for absolute encoder alignment. It should be treated as a of your machine's physical calibration. Always allow the CNC to manage this value natively through proper home positioning procedures or by relying on Parameter 1850 for manual adjustments.
If you are reading this article because you saw an alarm or odd behavior, here is how to interpret Parameter 1860 as a diagnostic tool:
If Parameter 1860 is set incorrectly (e.g., after a servo swap or battery backup loss), the following issues will occur: Photograph the parameter screen for 1860, 1850, 1851,
Misconfiguring this value directly shifts your machine coordinate system, causing physical machining offsets, tool changer misalignments, or critical overtravel alarms. Core Technical Profile: Parameter 1860 Technical Specification Function Name Grid Shift Amount for Absolute Position Detector Applicable CNC Controls FANUC 0i-D/F/F Plus, 16i/18i/21i, 30i/31i/32i Series Data Type 2-word / 4-byte signed integer (Axis-specific) Standard Units
In simpler terms:
Therefore, you would to the existing Parameter 1860.




