In the world of FANUC CNC controls, parameters are the DNA of the machine tool. They dictate everything from axis acceleration to I/O configuration. Among the hundreds of parameters, Parameter 1860 holds a critical, yet often misunderstood, role: controlling the reference position return speed (also known as "dog-type" reference return deceleration speed or approach speed).
Cole didn’t understand degrees or rotors. He understood time. “Can you fix it?”
You will typically only interact with Parameter 1860 during major maintenance or troubleshooting of the home position. PARAMETER MANUAL
| Machine Type | Typical Spindle Power | Recommended 1860 Range | |--------------|----------------------|------------------------| | Small VMC, BT30 taper | 3.7 kW – 5.5 kW | 800 – 1200 | | Standard VMC, BT40 | 7.5 kW – 11 kW | 1200 – 1800 | | Large VMC, BT50 | 15 kW – 22 kW | 1500 – 2200 | | CNC Lathe (live tooling) | 11 kW – 18 kW | 1000 – 1600 | | High-speed machining center (HSK63) | 30 kW+ | 1800 – 2500 |
The absolute position has been successfully established and the machine "knows" where it is relative to the machine zero. Relationship with Parameter 1815 Parameter 1860 is frequently used in conjunction with Parameter 1815 , which manages the absolute pulse coder settings: 1815 bit 5 (APC): Specifies whether an absolute pulse coder is being used. 1815 bit 4 (APZ):
She powered the main breaker back on. The cabinet fans whirred. The red alarm still blazed on the main screen. But on the guide box, she went into Parameter Tuning Mode.
Understanding 1860 often requires checking related "Reference Position" and "Absolute Encoder" parameters:
To understand Parameter 1860, you must visualize the control hierarchy:
In the world of FANUC CNC controls, parameters are the DNA of the machine tool. They dictate everything from axis acceleration to I/O configuration. Among the hundreds of parameters, Parameter 1860 holds a critical, yet often misunderstood, role: controlling the reference position return speed (also known as "dog-type" reference return deceleration speed or approach speed).
Cole didn’t understand degrees or rotors. He understood time. “Can you fix it?”
You will typically only interact with Parameter 1860 during major maintenance or troubleshooting of the home position. PARAMETER MANUAL fanuc parameter 1860
| Machine Type | Typical Spindle Power | Recommended 1860 Range | |--------------|----------------------|------------------------| | Small VMC, BT30 taper | 3.7 kW – 5.5 kW | 800 – 1200 | | Standard VMC, BT40 | 7.5 kW – 11 kW | 1200 – 1800 | | Large VMC, BT50 | 15 kW – 22 kW | 1500 – 2200 | | CNC Lathe (live tooling) | 11 kW – 18 kW | 1000 – 1600 | | High-speed machining center (HSK63) | 30 kW+ | 1800 – 2500 |
The absolute position has been successfully established and the machine "knows" where it is relative to the machine zero. Relationship with Parameter 1815 Parameter 1860 is frequently used in conjunction with Parameter 1815 , which manages the absolute pulse coder settings: 1815 bit 5 (APC): Specifies whether an absolute pulse coder is being used. 1815 bit 4 (APZ): FANUC Parameter 1860: The Definitive Guide to Reference
She powered the main breaker back on. The cabinet fans whirred. The red alarm still blazed on the main screen. But on the guide box, she went into Parameter Tuning Mode.
Understanding 1860 often requires checking related "Reference Position" and "Absolute Encoder" parameters: Cole didn’t understand degrees or rotors
To understand Parameter 1860, you must visualize the control hierarchy: