Description
A20B‑3300‑0240 — FANUC 8-Axis Servo/Axis Control PCB
Description:
The FANUC A20B-3300-0240 is an axis/servo control module printed circuit board (PCB) used inside industrial FANUC CNC controller systems. It’s part of the A20B-3300 family of control boards — the motion control hardware that directs servomotor movement in programmable machine tools.
🧠 What It Is
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Part Number: A20B-3300-0240
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Function: It is an 8-axis servo/axis control board, meaning it provides motion control for up to eight servo axes in a CNC system — coordinating precise movement for multiple axes of a machine tool.
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Series: Part of the A20B-3300 printed circuit board family used with FANUC CNC controllers.
⚙️ Key Role in CNC Systems
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📊 Motion Control: This board works with the main CPU and other modules inside a FANUC CNC controller to execute coordinated motion for servo drives and motors.
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🔌 Multi-Axis Support: Supports up to eight axes of servo motion — suitable for complex CNC machines with multiple axes (e.g., machining centers with milling + rotary axes).
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🛠 Integration: Installed on a rack/backplane within the controller cabinet alongside CPU modules, I/O boards, and display/HMI modules.
⚙️ Usage & Notes
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📦 Industrial Use: Found in industrial CNC machining systems where precise multi-axis motion control is critical.
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⚠️ Discontinued Status: As with many FANUC boards, this may be a legacy or discontinued part and is often available new, refurbished, or repaired via third-party suppliers.
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🔧 Service Consideration: Replacing servo control cards typically requires careful configuration and restoring backed-up machine parameters after installation. (Standard practice for CNC hardware swaps.)