Description
ORDERING NUMBER :- A20B-0279-B502, -B503 (0i-TA)
A02B-0280-B502, -B503 (0i-MA)
➡️ FANUC A16B-3200-0362 is a main CPU / control printed circuit board (PCB) used in FANUC CNC control systems, especially in 0i-A series controllers. It serves as the central processing board that runs the CNC control logic and coordinates all machine functions.
📌 Key Description
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Part Number: A16B-3200-0362 (sometimes shown as A16B32000362).
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Type: Main CPU / Control Board (PCB).
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Role: Acts as the main processor board for the FANUC control, handling program execution, I/O coordination, machine task management and general control duties.
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System Compatibility: Primarily used in FANUC 0i-A CNC systems and similar legacy CNC controls.
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Processor: Built around an industrial CPU design typical of old FANUC mainboards (commonly an i486DX2 architecture or similar).
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Discontinued: This board is discontinued by the manufacturer (no longer made by FANUC) and is usually supplied as surplus or refurbished by third-party sellers.
🔧 Function in the CNC System
The board is the “brain” of the machine’s CNC controller:
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Interprets machining programs (e.g., G-codes),
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Coordinates motion and spindle control,
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Communicates with drives, I/O modules, memory, and panels,
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Requires parameter/program reloading when replaced to match your specific machine setup.