A02B-0228-B501 Industrial Fanuc Logic Unit Providing Stable Data Handling In High-Speed CNC Equipment – Fanuc Controller

FANUC A02B‑0228‑B501 – 18‑C Control Unit (2‑Slot Backplane)

A rugged, modular control chassis for FANUC Series 18‑C CNC systems, the A02B‑0228‑B501 serves as the mechanical and electrical foundation of a CNC controller. Though it offers two PCB slots (commonly housing the CPU and PSU), this unit ships empty and requires additional electronics and firmware to operate. It supports control of up to four CNC axes.

Key Features of A02B‑0228‑B501

• 2‑slot backplane chassis, enabling installation of essential boards (e.g., CPU, power supply)

• Compatible with FANUC Series 18‑C/18‑MC/18‑TC control architectures; supports up to 4-axis CNC systems

• Discontinued by FANUC; still actively stocked and refurbished by distributors

• Core-exchange and repair services available, with typical 2‑year aftermarket warranties

Applications of A02B‑0228‑B501

• Base chassis for building or repairing FANUC 18‑C class CNC controllers

• Retrofit and maintenance replacements for lathes, milling machines, and machining centers

• OEM and automation applications requiring flexible, modular control platforms

Technical Specifications of A02B‑0228‑B501

The FANUC A02B‑0228‑B501 is a versatile and industrial-grade 2‑slot chassis designed for FANUC 18‑C CNC systems. Though shipped empty, it allows for full customization by adding CPU and power supply boards. Still widely supported by aftermarket providers, it offers repairability, core-exchange options, and robust warranties—making it a dependable choice for OEMs, integrators, and service teams.