Fanuc Motherboard for 16i A20B-8100-0660

A20B-8100-0660 is a PCB (Printed Circuit Board) used in CNC control systems manufactured by FANUC.

📌 Basic Information

• Part Number: A20B-8100-0660

• Type: Printed Circuit Board (PCB)

• Category: Control / Interface Board

• Used In: FANUC CNC control units (commonly Series 0i / 16i / 18i family depending on machine builder configuration)

⚙️ Main Functions

This board typically performs control or interface processing inside the CNC control cabinet. Its roles may include:

• Signal processing between CNC modules

• Communication interface with other boards or machine devices

• I/O signal management

• Supporting system control operations

🧩 Typical Installation Location

The A20B-8100-0660 PCB is usually installed:

• Inside the CNC control unit

• On the main control rack or motherboard assembly

• Connected to other FANUC boards via backplane connectors

🔧 Typical Applications

Used in machines such as:

• CNC machining centers

• CNC lathes

• CNC grinding machines

• Other industrial machines using FANUC CNC controllers

✅ Simple explanation:
A20B-8100-0660 = FANUC internal control PCB used inside the CNC control unit for signal processing and communication between CNC system modules. 🔧

If you want, I can also explain:

• Which FANUC CNC series uses this board most commonly

• Common faults of the A20B-8100 boards

• Compatible replacement boards.