FANUC 10 - A20B-1001-0241

The Fanuc A20B-1001-0241 is a D2 input/output board for CNC control systems. It handles the transfer of digital signals between the numerical control (NC) and the machine tool (MC), providing 80 inputs and 56 outputs for this purpose. The I/O switching is controlled by a PLC ladder program executed on the CPU and memory section of the associated control unit. The board is designed for use in Fanuc Series 10 and Series 11, Model A controls. It is used in CNC machine tools based on these control generations. The A20B-1001-0241 is manufactured in a non-surface-mounted version and supports full I/O communication between the control unit and machine peripherals. The board offers extensive testing capabilities for the input section, output channels, and system bus. It can be fully tested for both input and output signals, enabling reliable functional verification prior to use. All common wear components are renewed during the overhaul process.