When you execute G28 X... Y... Z... , the reference point return occurs in :
Note: Always refer to your specific FANUC maintenance manual (B-63944EN, B-63525EN, etc.) as parameter mapping and bit assignments can vary between series and firmware versions.
is a critical axis-specific setting used to store and display the current position data of an absolute position detector (encoder). Parameter Definition Parameter Number : Absolute position detector current position data. : 4-word (integer).
Change back to 0 and press [RESET] to clear the resulting PWE alarm.
A very specific question!
| Encoder Type | Reference Pulses/Rev | Typical 1820 | Calculated 1860 | |--------------|----------------------|--------------|------------------| | αiA 4096 P/rev | 4096 | 4096 | 1 | | αiB 16384 P/rev | 16384 | 16384 | 1 | | αiCZ 10000 P/rev | 10000 | 10000 | 1 | | βiA 8000 P/rev | 8000 | 8000 | 1 |
Perform a reference position return sequence to automatically populate the field.
At its core, Parameter 1860 functions as a for a given axis. In many Fanuc systems, this parameter displays a raw value representing the absolute position of the axis as reported by the encoder .
to 1 at the correct physical location triggers the CNC to take the current encoder reading and write it into Maintenance Warnings : Changing manually will force a Power Cycle (Alarm 000) and will likely cause the to reset to 0, requiring a new homing procedure. 🛠️ How to View and Set Reference Positions fanuc parameter 1860 full
During heavy roughing with large cutter engagement, use a . This provides a "soft start" that prevents the tool from digging in or chipping at corner entries. Some advanced operators even program a macro to change 1860 dynamically via a G10 command based on tool type.
In FANUC CNC systems, . It works in direct synchronization with parameters 1861 and 1862 to establish and store the exact mechanical position of an axis utilizing an absolute PulseCoder.
: Maintenance technicians use this parameter to verify that the absolute pulse coder is correctly tracking the machine's physical position.
In the world of high-precision CNC machining, the occupies a unique and somewhat mysterious position. While many common parameters like 1851 (backlash compensation) are frequently adjusted by technicians, Parameter 1860 is often described as an "untouchable" or "read-only" value that provides a fascinating look into the machine's internal logic. The Digital Pulse: What is Parameter 1860? When you execute G28 X
FANUC parameter 1860 is a specific setting within the FANUC control system that relates to the machine's operation and performance. This parameter is part of a larger system of parameters that allow users to customize and fine-tune the CNC machine's behavior. Parameter 1860, in particular, is associated with the "High-speed machining" or "Advanced preview" function.
series encoders), the feedback movement amplitude per revolution is typically mapped to standard internal pulse values.
. This process "syncs" the mechanical position with the value now stored in 1860. For detailed technical specifications, refer to the Fanuc Series 0i-MODEL F Plus Parameter Manual Series 16i/18i Parameter Manual using these parameters? FANUC? M6 toolchange position. | Practical Machinist
1860 = 1
Fanuc Parameter 1860 is a that sets the time constant (in milliseconds) for the first-order lag filter applied to the velocity command during cutting feed (G01, G02, G03) operations.