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                                                                                    FANUC A16B-2200-0500 CNC Control CPU Board

                                                                                    1. Product Overview

                                                                                    Manufacturer: FANUC

                                                                                     

                                                                                    Model: A16B-2200-0500

                                                                                     

                                                                                    Official definition: CPU PCB dedicated for F/FD Mate CNC control systems, belonging to the A16B series main control board platform for early-generation compact CNC units.

                                                                                     

                                                                                    This board acts as the core computing brain of the entire numerical control system, undertaking all CNC program parsing, interpolation calculation, PMC logic operation and internal bus data scheduling tasks. It is plugged into the system backplane slot to realize signal interconnection with display units, servo control boards, I/O modules and spindle drive boards.

                                                                                    Model segment explanation

                                                                                     

                                                                                    A16B represents the product family for Series 15/16 and early Mate CNC main circuit boards. 2200 stands for the core CPU base board category. 0500 is the specific hardware version tailored for F/FD Mate compact machine controllers.

                                                                                    2. Core Hardware & Electrical Specifications

                                                                                    Power supply mode relies on DC24V power output from the CNC rack backplane, with low power consumption suitable for continuous long-term factory operation.

                                                                                     

                                                                                    The board integrates dedicated CNC microprocessor, built-in DRAM for real-time program operation, and SRAM memory powered by an on-board backup lithium battery. The backup battery retains machine parameters, tool offsets, work coordinate data and PMC ladder logic data after system power failure.

                                                                                     

                                                                                    Multiple standard bus connectors are reserved on the board edge, including dedicated interfaces for CRT display screens, servo axis control boards, external I/O signal boards and serial communication ports.

                                                                                     

                                                                                    Complete hardware self-diagnosis circuit is embedded on the PCB. It automatically detects CPU operation status, memory faults and communication bus abnormalities, and feeds corresponding alarm codes to the operation panel for quick troubleshooting.

                                                                                    3. Compatible CNC Systems & Matching Components

                                                                                    This CPU board is exclusively matched with FANUC F-Mate and FD-Mate compact CNC control systems, widely equipped on small CNC lathes, vertical machining centers and grinding machines of early production batches.

                                                                                     

                                                                                    Supporting matched accessories include system backplane rack, CRT display unit, servo axis control boards, digital I/O interface boards, spindle amplifier modules and external RS232 communication cables for program uploading and downloading.

                                                                                     

                                                                                    It can be replaced interchangeably with same-series derivative boards after confirming hardware revision versions, commonly used as maintenance spare parts for old machine tool renovation and fault replacement.

                                                                                    4. Main Core Functions

                                                                                    Decode and interpret G/M code machining programs input from MDI panels or external storage devices, complete high-precision linear and circular interpolation operations to generate motion commands for each servo axis.

                                                                                     

                                                                                    Run built-in PMC programmable machine logic to process digital input signals from buttons, proximity switches and limit switches, and output control signals to solenoid valves, relays and indicator lights.

                                                                                     

                                                                                    Realize closed-loop motion control by receiving real-time position feedback signals from servo encoders, automatically correcting axis position errors to guarantee machining dimensional accuracy.

                                                                                     

                                                                                    Manage all internal communication data transmission between the CNC host and peripheral functional boards, synchronize spindle speed control, coolant and tool change auxiliary actions.

                                                                                     

                                                                                    Store system operation logs, machining alarm records and user custom macro variables, and support data backup via serial communication ports.

                                                                                    5. Mechanical & Environmental Performance

                                                                                    Adopts standard slot-mounted yellow PCB design, installed in the dedicated slot of the CNC electrical cabinet backplane, with lock buckles to prevent loose contact caused by equipment vibration.

                                                                                     

                                                                                    Operating temperature range covers 0°C to 50°C, storage temperature ranges from -40°C to 85°C, and works stably under 5% to 95% non-condensing humidity factory environments.

                                                                                     

                                                                                    Industrial anti-interference circuit layout is adopted on the circuit board, effectively resisting electromagnetic interference generated by inverters, motors and contactors in the workshop.

                                                                                     

                                                                                    Integrated multi-layer PCB with overcurrent and overvoltage protection circuits, supporting long-term 24-hour uninterrupted operation of machine tools.

                                                                                    6. Key Advantages

                                                                                    Professional customized hardware architecture for F/FD Mate compact CNC systems, stable computing performance for small and medium-sized machining equipment.

                                                                                     

                                                                                    Integrated complete memory and peripheral bus interfaces, reducing the quantity of auxiliary expansion boards inside the control cabinet and saving installation space.

                                                                                     

                                                                                    Independent battery backup memory design avoids permanent loss of machine key parameters after unexpected power outages.

                                                                                     

                                                                                    Built-in full-range self-diagnosis function greatly shortens the time for on-site maintenance and fault location of old CNC equipment.

                                                                                     

                                                                                    Standardized FANUC original board design, good interchangeability for equipment after-sales repair and spare parts replacement.

                                                                                    7. Typical Application Scenarios

                                                                                    Small vertical machining centers and economical CNC lathes equipped with FANUC F-Mate / FD-Mate control systems.

                                                                                     

                                                                                    Precision grinding machines, tapping machines and small special automation machining equipment in mechanical processing workshops.

                                                                                     

                                                                                    Renovation and maintenance of early-generation domestic and imported CNC machine tools with F/FD Mate controllers.

                                                                                     

                                                                                    Auxiliary processing equipment for auto parts, hardware molds and electronic component manufacturing production lines.

                                                                                     

                                                                                     
                                                                                     

The structure and details of the product：