FANUC A16B-3200-0210 Main CPU Board with 32-bit High-speed CPU Processing and Battery-backed Parameter Memory for CNC Control PCB

The FANUC A16B‑3200‑0210 serves as the core main CPU printed circuit board for legacy FANUC Series 16‑B and 18‑B CNC control systems. Functioning as the central computing unit, it executes NC part-program interpretation, multi-axis interpolation calculations, PMC ladder-logic operations, servo-spindle command outputs, and I/O signal scheduling. This board processes G-code programs, sends motion instructions to servo amplifiers, and exchanges data with operator panels, MPG handwheels, and peripheral I/O modules. Primarily used for cabinet spare-part replacement and retrofitting existing CNC machine tools, it resolves common faults including system boot failure, screen freeze, axis control loss, PMC communication failure, and CNC CPU-related alarms.

• Industrial-grade 32-bit High-speed CPU Processing: Equipped with Intel i486DX2-66MHz processor for stable computing performance in multi-axis interpolation and complex NC program operations; supports up to 6-axis synchronized motion control for milling and turning processes.
• Modular Back-plane Plug-in Structure: Standard slot-mount design for CNC rack backplane with rich expansion slots for memory and optional function boards; enables convenient hardware upgrades and on-site replacement without cabinet re-wiring.
• Multi-interface Signal Integration: Built-in high-speed system bus supporting servo, spindle, MDI/handwheel, and serial communication signals; ensures seamless data interaction between CPU, drive units, and peripheral modules.
• Battery-backed Parameter Memory: Non-volatile SRAM area retains CNC parameters, tool offsets, and user part-programs with backup battery, preventing data loss after power-off.
• Optimized EMC Anti-interference Circuit Layout: Carefully-designed PCB ground-isolation and filtering circuits resist surge and electromagnetic interference inside electrical cabinets; fully complies with ECE R10 electromagnetic-compatibility regulation and EU CE export standards.
• Diagnostic LED Status Indicators: On-board LED lamps display power-on, CPU running, and fault status; enables maintenance technicians to quickly assess board working condition without complex debugging software.
• Reliable Compatibility for Legacy Machine Retrofit: Fully compatible with FANUC 16-B and 18-B series controllers; serves as direct replacement for damaged original CPU boards, effectively reducing machine-tool production downtime.

• Precision Mold Manufacturing: Old-generation vertical machining centers and milling equipment maintenance
• General CNC Machining: Legacy CNC lathes, tapping-milling centers with FANUC 16-B /18-B control
• Automotive Parts Manufacturing: Repair of retired mass-production CNC workshop equipment
• Aerospace Precision Hardware: Overhaul and retrofit of old multi-axis CNC processing machines
• Equipment Maintenance & Retrofit: Faulty CPU-PCB replacement for existing FANUC legacy CNC machine-tools