Description
📌 FANUC A20B-8200-0390 – ZERO i-C MAIN PCB
Description:
The FANUC A20B-8200-0390 is a main printed circuit board (PCB) used in the FANUC Series ZERO i-C CNC controller. It functions as one of the main logic/CPU boards for the control system, handling core processing tasks, communication with I/O and servo systems, and overall machine control. This board is part of the A20B-8200 family of PCB components for FANUC CNC hardware.
🔧 Key Details
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Part Number: A20B-8200-0390
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Name: ZERO i-C MAIN PCB
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Function: Central processing/control board in the FANUC ZERO i-C controller system — executes machine logic, interfaces with peripheral cards, and manages data and signals within the control cabinet.
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Series / Family: A20B-8200 (main control board series)
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Usage: Installed inside the controller unit of FANUC-controlled CNC machines (mills, lathes, machining centers, etc.) using the ZERO i-C control platform.
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Availability: Often sold new, refurbished, or surplus by automation parts suppliers; may require core exchange depending on vendor.
🧠 Function & Application
This board is essentially the “brain” of the controller in a FANUC Zero i-C control setup. It processes the CNC program data, coordinates signals between servo drives and I/O modules, and runs the controller’s internal logic, making it critical for correct machine operation.
🛠️ Notes
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It’s part of a family of main PCBs with similar functions but different processor or memory configurations (e.g., A20B-8200-0380/0381/0391/0395).
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Compatibility should be confirmed with your specific FANUC controller model before purchase.