Fanuc Parameter 1860 Work !!hot!! Jun 2026

When working with FANUC CNC controls, encountering absolute encoder errors after a battery failure or motor replacement is a common hurdle. One of the most critical tools for resolving these issues is .

Many users mistakenly think 1860 is the only parameter needed to set a home position. In reality, it works as part of a set:

: When an absolute encoder is enabled (via Parameter 1815#5), the system uses the value in 1860 to calculate the exact machine coordinate based on the position data stored during power-down. Operational Workflow

FANUC Parameter 1860 Work: Configuration, Axis Control, and Troubleshooting Guide fanuc parameter 1860 work

user wants a comprehensive article on FANUC parameter 1860, focusing on how it works. This is a technical topic related to FANUC CNC controls. I need to provide detailed information about this parameter, including its function, configuration, and impact on machine operation. To cover all aspects, I will perform multiple searches to gather information about parameter 1860, including its meaning, configuration, usage, and related parameters. search results show some relevant links. Result 0 appears to be a parameter manual page mentioning parameter 1860 for reference point value. Result 1 is a Chinese Q&A site that says 1860 is for "First acceleration for Two-Stage Backlash Acc. function". Result 2 is a list of common Fanuc parameters. Result 3 is a search result for "Read Write Parameters" which might be relevant for parameter modification. Result 4 is a Focas tutorial. Result 5 is a Chinese blog post about parameter modification. Result 6 is about PMC parameters. Result 7 is a forum post mentioning 1860. Result 8 is about PMC parameters. To understand parameter 1860, I need to open result 0, result 1, result 2, result 3, result 7, and result 8. opened pages provide some information. The parameter manual page shows that parameter 1815 bit 0 (NRT) controls whether reference point values (parameter 1860, 1861) are changed or not for a rotary axis with a scale that has no revolution data. The Chinese Q&A page says 1860 is for "First acceleration for Two-Stage Backlash Acc. function". The common parameters page might list 1860 but it's not shown in the snippet. The forum posts indicate that 1860 and 1861 are involved in absolute encoder synchronization and reference point values. The search results also show that 1860 is related to "Reference point value". To further investigate, I will search for "FANUC parameter 1860 reference point". 0 might be relevant. Let's open it. page clarifies that parameter 1860 and 1861 hold reference position data for rotary axes with absolute position detectors. Let's search for "FANUC parameter 1860 1861". 3 is a Japanese blog that lists 1860 as "Value 1 for origin setting of absolute position detector". Let's open it.'s search for "1860 absolute position detector".'s search for "FANUC parameter 1860 backlash".'s search for "FANUC parameter 1860 function".'s search for "FANUC parameter 1860 PDF". need to gather more information about parameter 1860. Let's search in Chinese for "FANUC 1860 参数". also want to find information about the "Two-Stage Backlash Acc. function". Let's search for that. 6 seems promising. Let's open it. page shows that parameter 1860 is used as "1ST ACC VALUE" for the two-stage backlash acceleration function. I also need to understand "Reference point value" function. Let's search for "Parameter 1860 reference point value FANUC".'s also search for "FANUC parameter 1860 dual position feedback". search results show that parameter 1860 can have different functions depending on the model and options. I will structure the article to cover its role in absolute position detection (Reference Point Value), Backlash Acceleration (1st ACC Value), and the Two-Stage Backlash Acceleration function. I will also mention the related parameter 1861. The article will include sections on understanding the parameter, its functions, configuration, related parameters, step-by-step setup, best practices, and conclusion. I will cite the sources gathered.Mastering FANUC Parameter 1860: A Comprehensive Guide to Enhancing Machine Precision and Performance**

: Machines using absolute encoders rely on this parameter to bypass the need for a physical "dog-type" home switch. The control reads 1860 at startup to instantly know where the tool is. Axis Droop Monitoring

If you are seeing a "review" or discussion about "Parameter 1860 work," it likely refers to one of the following maintenance tasks: Setting Home Position: When working with FANUC CNC controls, encountering absolute

Controls whether the system treats the axis as absolute ( APC ) and verifies if home has been successfully established ( APZ ). Grid Shift

: Finally, by toggling Parameter 1815 (APZ), the control records this position as the new absolute zero. 1860 vs 1815 & 1850: A Common Misconception

I can give you a more tailored, step-by-step procedure for your situation. FANUC? M6 toolchange position. | Practical Machinist In reality, it works as part of a

Parameter 1860 functions as a digital bridge between the mechanical "Machine Zero" and the electrical "Grid Zero" detected by the absolute encoder. Grid Shift Mechanism

If there is a mismatch between the physical position of the tool and what the screen shows, technicians may verify the value in 1860 to ensure the absolute pulse coder is communicating correctly. Troubleshooting Alarms: Alarms like APC Alarm 300

The control needs to know how much distance equals "one count" (pulse).