: This parameter is primary for machines using absolute pulse coders. Unlike incremental encoders, these coders keep track of the position even when the machine is powered off (often via battery backup). Parameter 1860 acts as the internal "checkmark" that the position stored in the encoder is valid and synced with the CNC's machine coordinate system.
: Input the calculated offset into 1860 (often 0 if you are directly on the witness mark). Set 1815 to 1 : Change 1815 APZ back to 1.
Switch to MDI mode , go to the SETTINGS screen, and set "PARAMETER WRITE =" to 1. The machine will likely throw an alarm (e.g., 100 PS ALARM); this is normal.
Setting parameter 1860 requires a thorough understanding of the machine's specifications, the type of movement, and the desired performance. Here are the general steps to follow: fanuc parameter 1860 work
On many 30i/31i series controls, there is a built-in spindle tuning screen. Navigate to: The control may automatically suggest a value for Parameter 1860 based on actual encoder feedback over several orientation cycles.
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, the tool holder will bind, score, or jam inside the spindle during an M06 cycle. Instead of moving alignment dogs or brackets, engineers modify Parameter 1860 to seamlessly lift or lower the tool-change height position. 📋 Step-by-Step Guide to Changing Parameter 1860 : This parameter is primary for machines using
If the mechanical home dog or the desired physical home position is slightly away from this electronic grid mark, Parameter 1860 is used to "shift" the grid reference point.
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FANUC is a well-known Japanese company that specializes in the development and manufacture of industrial robots, CNC systems, and other automation products. FANUC's CNC (Computer Numerical Control) systems are widely used in various industries, including aerospace, automotive, and medical device manufacturing. One of the critical aspects of working with FANUC CNC systems is understanding and configuring parameters, which are essential for optimizing machine performance and ensuring safe operation. : Input the calculated offset into 1860 (often
If an axis experiences a severe crash, the coupling between the servomotor and the ballscrew can slip. Even a fraction of a millimeter of slippage will cause the machine to cut parts off-size or throw off tool changer alignments. If the mechanical components are verified to be undamaged, Parameter 1860 can be recalculated to re-zero the axis perfectly. 3. Machine Realignment and Leveling
Modifying critical machine parameters requires a strict safety sequence to prevent unexpected axis movements or machine crashes. fANUC 0m-MATE. Grid shift questions. - Practical Machinist
When troubleshooting vibrations, noise, or "servo lag" errors (like Error 410 or 420), Parameter 1860 is one of the key parameters to adjust. Increasing the value makes the motion smoother but slower; decreasing it makes the motion faster but potentially jerkier. Setting and Adjusting Parameter 1860
It is typically a 2-word or 4-word data type depending on the specific Fanuc control series (e.g., 0i-MC, 0i-MD, 0i-TF, 16i, 18i, 21i, 31i).