He flipped to the PMC section and found a handwritten note scrawled in the margin: “Keep Relay K12.3 – The Apprentice’s Lock.” Elias navigated to the PMC parameters. There it was: cap K 0012 was set to
Unlike conventional relays that change state based on real-time inputs, Keep Relays retain their programmed state indefinitely—even after the machine is powered off. Once a K parameter is manually set, it stays fixed until another operator changes it again. This "non-volatile" characteristic makes them ideal for configuring persistent machine behaviors and toggle options.
Keep Relays (K Parameters) are non-volatile internal relays within the Programmable Machine Control (PMC) that retain their state (0 or 1) even after the machine is powered down. They are primarily used by Machine Tool Builders (MTBs) to toggle specific options, manage maintenance modes, or bypass safety interlocks without rewriting the PLC ladder logic. Accessing and Modifying Keep Relays
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Activating or deactivating features like tailstocks, steady rests, or chip conveyors.
This indicates an underlying hardware issue with the battery‑backed memory. Replace the CNC backup batteries immediately and re‑initialize the PMC parameters.
Two scenarios occur frequently:
Note: For some advanced system relays, you may need to press the Emergency Stop button for the change to take effect. 4. Exclusive/Critical Keep Relay Examples
By understanding how to properly read and modify , you can significantly reduce downtime and customize machine performance to meet specific production requirements. If you're interested, I can:
He flipped to the PMC section and found a handwritten note scrawled in the margin: “Keep Relay K12.3 – The Apprentice’s Lock.” Elias navigated to the PMC parameters. There it was: cap K 0012 was set to
Unlike conventional relays that change state based on real-time inputs, Keep Relays retain their programmed state indefinitely—even after the machine is powered off. Once a K parameter is manually set, it stays fixed until another operator changes it again. This "non-volatile" characteristic makes them ideal for configuring persistent machine behaviors and toggle options.
Keep Relays (K Parameters) are non-volatile internal relays within the Programmable Machine Control (PMC) that retain their state (0 or 1) even after the machine is powered down. They are primarily used by Machine Tool Builders (MTBs) to toggle specific options, manage maintenance modes, or bypass safety interlocks without rewriting the PLC ladder logic. Accessing and Modifying Keep Relays fanuc keep relay parameters exclusive
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Activating or deactivating features like tailstocks, steady rests, or chip conveyors. He flipped to the PMC section and found
This indicates an underlying hardware issue with the battery‑backed memory. Replace the CNC backup batteries immediately and re‑initialize the PMC parameters.
Two scenarios occur frequently:
Note: For some advanced system relays, you may need to press the Emergency Stop button for the change to take effect. 4. Exclusive/Critical Keep Relay Examples
By understanding how to properly read and modify , you can significantly reduce downtime and customize machine performance to meet specific production requirements. If you're interested, I can: Accessing and Modifying Keep Relays This public link