Fanuc Parameter 1860 |work| Jun 2026

for each axis when an absolute pulse coder is used. Its primary role is to maintain the machine's reference position (home) even after the power is turned off, eliminating the need for a manual reference point return (homing) every time the machine is restarted. Key Characteristics Axis-Specific

Because changing servo parameters can cause violent axis oscillation if configured incorrectly, proper safety protocols must be followed to enable editing on your FANUC controller (such as the Series 0i, 16i, 18i, 21i, or 31i series). Step 1: Enable Parameter Write (PWE) Alpha AC Servo Motor Parameter Mnl, GFZ-65150E/04

You might wonder, "Why does this specific number matter?" The setting of P1860 directly impacts three critical areas of machine performance: fanuc parameter 1860

The behavior of Parameter 1860 and 1861 is directly controlled by the , which is bit #6 of Parameter 1815. This bit determines whether the reference point value is automatically renewed or remains static.

: She switched to MDI mode and enabled Parameter Write Enable (PWE) . for each axis when an absolute pulse coder is used

To get the most out of parameter 1860, follow these best practices:

What is the exact (e.g., 0i-MF, 18i-TB, 31i-B)? What specific alarms are showing on the screen? Step 1: Enable Parameter Write (PWE) Alpha AC

It's essential to understand which of these roles applies to your specific FANUC control series (e.g., 0i, 16i, 18i, 21i) before making any adjustments.

In the Fanuc ecosystem, specifically for Alpha and Beta series servo motors, Parameter 1860 works in tandem with the Absolute Pulse Coder (APC). While Parameter 1815 bit 5 (APC) enables the absolute position function, Parameter 1860 defines the resolution of that position. Standard values often depend on the specific encoder type: Most modern Alpha i encoders use a value of 1,000,000. Older models may require values like 8,192 or 65,536.

Configuring parameter 1860 involves setting a scaling factor for the feed rate. The parameter is usually a numerical value that represents a percentage of the programmed feed rate. For example, setting parameter 1860 to 100% means the actual feed rate will be the same as the programmed feed rate. Setting it to 50% would halve the feed rate, while 200% would double it.

is a critical axis-specific setting used to optimize surface finish and geometric accuracy by configuring the Stage 1 Backlash Acceleration Amount (%) . When a CNC machine tool reverses its direction of motion along an axis, physical mechanical play (backlash) causes a brief pause in actual movement while the servo motor turns to close the gap. Parameter 1860 dictates how much extra torque or speed boost the digital servo software injects at the exact millisecond of reversal to overcome this physical friction and inertia.

for each axis when an absolute pulse coder is used. Its primary role is to maintain the machine's reference position (home) even after the power is turned off, eliminating the need for a manual reference point return (homing) every time the machine is restarted. Key Characteristics Axis-Specific

Because changing servo parameters can cause violent axis oscillation if configured incorrectly, proper safety protocols must be followed to enable editing on your FANUC controller (such as the Series 0i, 16i, 18i, 21i, or 31i series). Step 1: Enable Parameter Write (PWE) Alpha AC Servo Motor Parameter Mnl, GFZ-65150E/04

You might wonder, "Why does this specific number matter?" The setting of P1860 directly impacts three critical areas of machine performance:

The behavior of Parameter 1860 and 1861 is directly controlled by the , which is bit #6 of Parameter 1815. This bit determines whether the reference point value is automatically renewed or remains static.

: She switched to MDI mode and enabled Parameter Write Enable (PWE) .

To get the most out of parameter 1860, follow these best practices:

What is the exact (e.g., 0i-MF, 18i-TB, 31i-B)? What specific alarms are showing on the screen?

It's essential to understand which of these roles applies to your specific FANUC control series (e.g., 0i, 16i, 18i, 21i) before making any adjustments.

In the Fanuc ecosystem, specifically for Alpha and Beta series servo motors, Parameter 1860 works in tandem with the Absolute Pulse Coder (APC). While Parameter 1815 bit 5 (APC) enables the absolute position function, Parameter 1860 defines the resolution of that position. Standard values often depend on the specific encoder type: Most modern Alpha i encoders use a value of 1,000,000. Older models may require values like 8,192 or 65,536.

Configuring parameter 1860 involves setting a scaling factor for the feed rate. The parameter is usually a numerical value that represents a percentage of the programmed feed rate. For example, setting parameter 1860 to 100% means the actual feed rate will be the same as the programmed feed rate. Setting it to 50% would halve the feed rate, while 200% would double it.

is a critical axis-specific setting used to optimize surface finish and geometric accuracy by configuring the Stage 1 Backlash Acceleration Amount (%) . When a CNC machine tool reverses its direction of motion along an axis, physical mechanical play (backlash) causes a brief pause in actual movement while the servo motor turns to close the gap. Parameter 1860 dictates how much extra torque or speed boost the digital servo software injects at the exact millisecond of reversal to overcome this physical friction and inertia.