Keep Relays are used to toggle machine options and control behavioral logic without changing the core ladder program.
An exclusive Keep Relay is one that:
Fanuc, a leading manufacturer of industrial automation and CNC systems, provides a range of products and solutions for various industries. One of the key aspects of Fanuc's control systems is the use of keep relay parameters, which play a crucial role in maintaining the system's performance and reliability. This paper aims to provide an in-depth analysis of Fanuc keep relay parameters, their significance, and the importance of keeping them exclusive. fanuc keep relay parameters exclusive
Write any modified Keep Relay values on a label inside the electrical cabinet door. If the CNC memory ever wipes, future technicians will know exactly how the machine logic was customized.
: With known settings consistently applied, troubleshooting becomes more straightforward, as the system's behavior is more predictable. Keep Relays are used to toggle machine options
A common requirement in machine tool automation is creating "exclusive" logic using these keep relays. This article covers how to configure, modify, and utilize FANUC keep relay parameters when you need mutually exclusive operations. What are FANUC Keep Relays?
Keep Relays (K-parameters) are software switches in the Programmable Machine Control (PMC) that maintain their state (ON/OFF) even after a power cycle. Unlike standard parameters, Keep Relays are "exclusive" because their functions are defined by the Machine Tool Builder (MTB) , not Fanuc itself. Custom Functions: This paper aims to provide an in-depth analysis
K0020.4 = 1: High-pressure Through-Spindle Coolant (TSC) system active.
— When troubleshooting, technicians must know which K relays are exclusive. Misdiagnosis occurs when a general-purpose K relay is mistaken for a fixed-function one (or vice versa).