Defines the coordinate value of the second reference point (often used for tool changes). MRO Electric Enable Parameter Write (PWE)
: The value in 1860 is maintained by a battery backup in the pulse coder or servo amplifier. If battery power is lost, the value in 1860 becomes invalid, necessitating a new home position setup. Relation to Parameter 1815 : 1860 works in tandem with Parameter 1815
Press the function key and access the [PARAM] sub-screen. Search for Parameter 1815 . Identify the target axis (e.g., X, Y, or Z). Change the APZ bit (typically Bit 4) from 1 to 0 .
Note: The machine will display an intentional P/S 100 alarm. Ignore this for now. 2. Locate and Modify Parameter 1860 Next, you need to toggle the absolute detector setting. Press the hard key, then select the PARAM soft key. Type 1860 and press the No. SRH (Number Search) soft key. fanuc parameter 1860 work
The control expects an absolute encoder and attempts to read saved position data.
Input increments (0.001 mm or 0.0001 inch depending on standard system increments).
Setting or modifying Parameter 1860 typically occurs during machine commissioning or after a mechanical repair, such as a ballscrew replacement. Enabling Edits Defines the coordinate value of the second reference
Locate the specific axis you need to modify (e.g., X, Y, Z, or B). Note the original value down as a fallback baseline. Step 3: Calculate the New Offset Value
FANUC Parameter 1860 is a versatile data point that serves two distinct primary functions within a CNC system. Understanding which function applies to your specific machine setup is the first step to successful configuration.
FANUC parameter 1860 plays a vital role in enabling or disabling the 1870 function on FANUC CNC systems. Understanding and configuring this parameter is essential for optimizing machine performance, ensuring safe operation, and customizing the CNC system to meet specific application requirements. By following best practices, consulting FANUC documentation, and troubleshooting issues effectively, users can work efficiently and safely with parameter 1860 and unlock the full potential of their FANUC CNC systems. Relation to Parameter 1815 : 1860 works in
Never attempt to force-write or manipulate parameters in the 1800-series (Axis-related parameters) without referring to the official Fanuc Parameter Manual
In the parameter screen, locate (APZ bit) or 1860 (depending on the specific control model's logic). Set the relevant bit to "1" for the desired axis. Finalize :
Re-tensioning, replacing, or repairing ball screws changes the mechanical relationship between the motor turns and physical tool travel.
These indicate that the absolute position data has been lost.