Description
ORDERING NUMBER :- A02B-0279-H010#E1
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FANUC A16B-2203-0073 is a FANUC CNC I/O printed circuit board (PCB) used in FANUC CNC controllers (especially the ZERO i control with 96/64 I/O configuration). It functions as an input/output interface board that connects field devices (sensors, switches, actuators) to the CNC control logic.
📌 Main Description
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Part Number: A16B-2203-0073 (FANUC)
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Type: CNC I/O PCB — Input/Output Board
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Series: A16B-2203 series
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Control Family: Designed for ZERO i control systems (96/64 point I/O) in FANUC CNC applications.
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Purpose: Interfaces digital I/O signals between the CNC controller and machine peripherals (e.g., limit switches, E-stops, relays, indicators, actuators).
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Category: PLC/Control PC Board — often listed under I/O boards in CNC cabinets.
⚙️ Function in the CNC System
This board acts as the interface layer between the CNC’s core logic and the machine’s physical I/O:
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Inputs: Receives signals from machine sensors, safety switches, and operator inputs.
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Outputs: Sends control signals to actuators, indicators, relays, and other devices based on controller logic.
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It’s essential for proper communication between the CNC controller’s CPU and the machine hardware.
🧠 Additional Notes
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Typically available new, refurbished, or repaired via third-party suppliers; original FANUC production may be discontinued.
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Often used in older 0i/Zero i family CNC systems.
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When replaced, machine parameters and wiring must match the control system requirements.
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