Description
📦 FANUC A16B‑2203‑0876 — Description
Part Number: A16B‑2203‑0876
Description: FANUC internal Printed Circuit Board (PCB) used inside a CNC controller or servo drive system
🔧 What It Is
The FANUC A16B‑2203‑0876 is a printed circuit board (PCB) manufactured by FANUC, typically used as an internal control or interface board in FANUC CNC controller or drive electronics. It is part of the larger A16B‑2203 series, which is widely used for internal logic, wiring, I/O, and subsystem control functions within CNC control cabinets and drive modules.
- Part Family: A16B‑2203 — FANUC series of PCBs for control and interface functions
- Board Role: Internal electronics board (control/logic/communication), specific to the CNC or servo module in which it’s installed
- OEM: FANUC (Japan)
- Condition Options: Available new, used, or refurbished from industrial parts suppliers worldwide
🧠Typical Function
Unlike high‑power modules (like servo amplifiers or drives), parts in the A16B‑2203 series are internal circuit boards used for electrical and data processing functions inside the machine controller or drive assembly. These boards help manage:
- Communication between controller components
- Logic functions and data routing
- Signal interfacing with CPUs, I/O modules, or drive electronics
In fact, similar boards in this series have specific roles — e.g., I/O boards, PROCESS I/O PCBs, SUB‑CPU PCBs — depending on the exact part number.
For A16B‑2203‑0876 specifically, service manuals and parts lists show this part as one of the wiring or interface PCBs used in conjunction with certain FANUC servo amplifier modules such as AiSV‑180HV units.
📍 Where It’s Used
This board is typically mounted inside the control cabinet of a FANUC CNC system or inside a servo drive assembly where it:
- Connects and communicates between multiple internal boards
- Provides specific control interfacing not handled by the main CPU board
- Ensures correct signal routing in complex multi‑board controller systems
It is not a user‑serviced part like an HMI or terminal — it operates behind the scenes as part of the controller’s internal electronics.
đź“Ś Summary
👉 A16B‑2203‑0876 = FANUC internal printed circuit board (PCB) used inside CNC controller or servo electronics.
👉 Part of the A16B‑2203 series of internal control boards for logic/interface functions.
👉 Typically used with FANUC high‑voltage servo drives and CNC control cabinets.