Description
📌 FANUC A20B-8200-0381 – MAIN PCB (ZERO i-C Series Main Board)
Part Type: Main Printed Circuit Board (PCB) / Control Board for FANUC CNC controller
Series: A20B-8200 (industrial controller electronics)
Common Name: ZERO i-C MAIN PCB — the central control board used in the FANUC 0i-C / ZERO i-C CNC control systems. It’s essentially the main CPU / logic board that coordinates the overall operation of the controller.
🔧 Function & Role
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Acts as the main processing/control board inside a FANUC CNC unit.
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Handles core machine functions including communication with I/O modules, servo drives, and operator panels.
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Central to the CNC controller; without it the machine won’t function.
🏭 Typical Usage
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Found in FANUC Series 0i-C / ZERO i-C CNC systems.
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Installed in industrial CNC controllers that run mills, lathes, and machining centers.
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Interfaces with other boards (I/O, servo control, communications) to manage motion control and machine logic.
🧠 Key Notes
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Discontinued by FANUC (often available through surplus or aftermarket sellers).
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Often sold new, refurbished, or surplus depending on stock — repair options may vary by supplier.
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A core exchange requirement may apply when ordering from some vendors.