In the FANUC CNC system, Parameter 1860 (often referenced as
To help debug any positioning issues, let me know the you are running and if you are currently seeing an APC alarm on your screen. Share public link
Locate and change the value from 0 to 1 .
By correctly maintaining Parameter 1860 and your servo amplifier batteries, you can eliminate the tedious task of homing your CNC machine every morning, saving valuable production time and protecting your tooling setups. fanuc parameter 1860
: Value 2 for the zero point of the absolute position detector.
: Indicates whether the zero-point (reference position) of the absolute pulse coder has been established. The Initialization Chain
Parameter 1860 is used to specify the connected to the CNC system. This parameter allows you to configure the CNC system to communicate with various I/O devices, such as programmable logic controllers (PLCs), input/output units, or other CNC systems. In the FANUC CNC system, Parameter 1860 (often
For more information on Fanuc parameter 1860 and other CNC-related topics, check out the following resources:
To set Parameter 1860, follow these general steps:
This happens after a battery failure, a disconnected encoder cable, or manually changing Parameter 1860 or 1815. 2. 306 SV ALARM: [Axis Name] BATTERY VOLTAGE LOW : Value 2 for the zero point of
For most daily operations, a machinist will never need to look at 1860. However, it becomes vital in two specific scenarios: Recovery from APC Alarms
The technician graphed the position error and saw a slow, sluggish settling (underdamped). After three iterations – 950 → 1350 → 1650 → 1500 – the orientation completed in 0.35 seconds with no overshoot.
Here is a comprehensive breakdown of what Parameter 1860 does, how it works with related parameters, and how to troubleshoot it. What is FANUC Parameter 1860?