Note: In newer FANUC controls (31i-B, 0i-F), parameter 1860 is often replaced or augmented by (grid check tolerance), but 1860 remains active for legacy mode or specific axis setups.
When you execute G28 X... Y... Z... , the reference point return occurs in :
If Parameter 1860 is set incorrectly (e.g., after a servo swap or battery backup loss), the following issues will occur:
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
value used to adjust the zero point after a reference return. Maintenance & Troubleshooting Read-Only Nature
According to Fanuc technical documentation for Series 0i/30i/31i/32i:
However, Parameter 1860 specifically interacts with the (Parameter 1821). In standard configurations (using Semi-Closed Loop control with standard encoders), Parameter 1860 is often set to 2 or calculated based on the Gear Ratio.
It depends on the display unit setting. If your machine is set to "inch display," the value will appear with a decimal (e.g., 0.5000). Internally, it still works in whole detection units.
This article is for informational purposes. Always refer to your specific Fanuc control manual and machine builder guidelines before modifying CNC parameters. Machine tools can cause severe injury or death if misused.
You command the machine to shift its reference point by a specific distance (measured in detection units). The system accepts this manual offset safely.
Yes. G28 returns to the reference position defined by parameters including 1860. G30 (2nd, 3rd, 4th reference return) uses different parameters (e.g., 1861, 1862).
NOTE. 1 For ease of explanation, the models may be. classified as follows: T series: 16i-TB/160i-TB/160is-TB/18i-TB/180i-TB/180is- CNC Fanuc Resetting home position After switching batteries
Note: In newer FANUC controls (31i-B, 0i-F), parameter 1860 is often replaced or augmented by (grid check tolerance), but 1860 remains active for legacy mode or specific axis setups.
When you execute G28 X... Y... Z... , the reference point return occurs in :
If Parameter 1860 is set incorrectly (e.g., after a servo swap or battery backup loss), the following issues will occur:
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
value used to adjust the zero point after a reference return. Maintenance & Troubleshooting Read-Only Nature
According to Fanuc technical documentation for Series 0i/30i/31i/32i:
However, Parameter 1860 specifically interacts with the (Parameter 1821). In standard configurations (using Semi-Closed Loop control with standard encoders), Parameter 1860 is often set to 2 or calculated based on the Gear Ratio.
It depends on the display unit setting. If your machine is set to "inch display," the value will appear with a decimal (e.g., 0.5000). Internally, it still works in whole detection units.
This article is for informational purposes. Always refer to your specific Fanuc control manual and machine builder guidelines before modifying CNC parameters. Machine tools can cause severe injury or death if misused.
You command the machine to shift its reference point by a specific distance (measured in detection units). The system accepts this manual offset safely.
Yes. G28 returns to the reference position defined by parameters including 1860. G30 (2nd, 3rd, 4th reference return) uses different parameters (e.g., 1861, 1862).
NOTE. 1 For ease of explanation, the models may be. classified as follows: T series: 16i-TB/160i-TB/160is-TB/18i-TB/180i-TB/180is- CNC Fanuc Resetting home position After switching batteries
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