Description
🔧 A20B-1008-0090 — Description
A20B-1008-0090 is a FANUC printed circuit board (PCB) used in CNC control systems, typically classified as a processor / control board or system interface module.
📌 Full Technical Description
- Manufacturer: FANUC
- Part Number: A20B-1008-0090
- Type: CNC control PCB (processor / system board)
- Category: Control system electronics / accessory board
- Origin: FANUC (Japan)
⚙️ Function (What it does)
- Acts as a central processing or control interface board inside a FANUC CNC system
- Handles:
- System control logic
- Communication between CNC main CPU and drive units
- Processing of machine control signals
👉 In simple terms:
It is a core control board used in FANUC CNC controllers or related electronic units.
🏭 Where it is used
- FANUC CNC control systems (various generations)
- Industrial automation machines like:
- CNC machining centers
- CNC lathes
- Sometimes used as:
- Option or accessory board in controller architecture
A listing confirms it as a FANUC CNC circuit board / processor board used in industrial control systems .
🧩 Key characteristics
- Internal electronic module (not standalone device)
- Works as part of a larger CNC control rack/system
- Must match:
- CNC series (0i / 16i / 18i / etc.)
- System configuration and firmware level
- Typically replaced as a full unit or repaired (not component-level service)
⚠️ Important notes
- ❗ Not interchangeable across all FANUC systems
- ❗ Exact suffix/version matters (e.g., #R, -xx revisions)
- ❗ Often supplied refurbished or exchange-based due to obsolescence
- ❗ Failure can cause:
- Machine boot issues
- Communication errors
- System alarms or no-operation condition
👍 Summary
A20B-1008-0090 = FANUC CNC system control/processor PCB
➡️ Used inside CNC controller architecture
➡️ Handles system logic and communication
➡️ Critical board for machine operation