FANUC A16B‑3200‑0421 Main CPU Board, CNC Control PCB

📌 Product Overview

The FANUC A16B‑3200‑0421 is the original stand‑alone main‑carrier CPU circuit board, serving as the central backbone for FANUC 16i‑B, 18i‑B, 21i‑B CNC control systems. This mainboard provides high‑speed bus communication, power distribution and hardware‑carrier interface for CPU processor, FSSB servo modules, memory chips and graphics cards. It processes CNC machining programs, transmits servo motion‑control commands, exchanges I‑O signal data, and realizes multi‑axis coordinated movement. This spare‑part is widely used for faulty‑board replacement, cabinet maintenance and CNC‑system restoration of standalone machine‑tool controllers, to keep CNC equipment running stably and accurately.

✨ Product Advantages (Core Features)

• ✅ Genuine System‑Matching Design: Exact‑fit main carrier board, fully compatible with 16i‑B /18i‑B /21i‑B standalone control cabinets, no hardware modification needed during installation.
• ✅ High‑Speed Stable Bus Transmission: Optimized high‑speed signal circuit layout, reliable FSSB servo‑link data communication, effectively reduce axis alarm, communication interruption and position‑error failures.
• ✅ Industrial‑Grade Anti‑Interference Performance: High‑quality FR‑4 circuit‑board substrate, strong anti‑electromagnetic‑interference capability, support 24‑hour non‑stop operation in harsh metal‑processing workshops.
• ✅ Modular Plug‑in Expansion Structure: Multiple expansion slots for CPU, memory and graphics plug‑in modules, convenient for later‑stage system upgrade and component replacement.
• ✅ Strict Pre‑Shipment Functional Inspection: Every board undergoes continuity‑testing, bus‑signal inspection and aging test before delivery, lowering unexpected machine downtime risk.

📋 Technical Parameters

表格

💡 Important Reminder: Before replacing this main CPU board, back‑up all CNC parameters, PMC ladder, machining programs and SRAM data. After installation, reload system files and run full‑axis diagnostic inspection.

🏭 Application Industries & Scenarios

Main Application Industries ‑ CNC milling, turning, grinding and boring machine‑tool manufacturing ‑ Automotive component processing workshops ‑ Mold‑making factories ‑ Metal‑cutting automation production‑lines ‑ Old‑model FANUC CNC equipment maintenance & retrofitting ‑ Industrial‑automation machining‑center overhaul

Suggested Picture Layout for Store Page

1. Application‑scene image: This main CPU board installed inside FANUC standalone CNC control cabinet
2. Warehouse‑stock image: Product packed in anti‑static bag, neatly stored in industrial spare‑parts warehouse shelf

📜 Compliance Statement (Meet ECER Requirements)

This FANUC industrial CNC spare‑part complies with EU EMC electromagnetic‑compatibility and industrial‑equipment safety standards. Manufactured under strict original‑factory industrial‑production specifications. This product is a professional automation spare‑part exclusively for CNC machine‑tool repair, and not intended for household‑civilian usage.