A16B-2200-0200 Fanuc PCB Board A16B22000200 AI6B-22OO-O2OO

A16B-2200-0200 | FANUC RG2 Robot Main CPU PCB — Central Control Board / Robot Controller / A16B-2200 Series

RG2 Robot — FANUC's Compact Industrial Robot Controller

The A16B-2200-0200 is the main CPU PCB for the FANUC RG2 robot controller. The RG2 is a FANUC compact robot controller designed for smaller robot bodies and light-duty automation applications — a simpler, lower-cost controller compared to the RJ and R-J series that served larger industrial robots.

FanucWorld categorises the A16B-2200-0200 under "Fanuc Robot Parts / Fanuc Robot PCB" — confirming its robot controller application. The main CPU PCB is the central board that governs all robot functions:

Programme storage and execution: Robot programmes (teach pendant-generated motion sequences, I/O logic) reside in the CPU board's memory. The main CPU reads and executes each programme step — computing joint angle targets, calling I/O signals, and managing the operator interface.

Motion command generation: The main CPU translates programme coordinates into joint-level motion commands. Each programme step's Cartesian position or joint target is converted to the specific angle commands for each robot joint axis.

System coordination: The main CPU coordinates communication with all subsystems — the servo drives (via the servo interface), operator panel (pendant), I/O units, and peripheral devices.

Key Product Information

A16B-2200 — A Series Spanning CNC and Robot Applications

The A16B-2200 series confirmed in this session spans a remarkable functional range within FANUC's product history:

The A16B-2200-0200 at the 020x position is among the earliest-numbered boards in the series — consistent with a foundational CPU board role within the RG2 robot controller.

Application Scenarios

RG2 robot controller CPU board fault: A FANUC RG2 robot controller develops system faults — the robot cannot be powered on, or fails to execute programmes. The A16B-2200-0200 is identified as the main CPU fault. Replacement restores the robot controller's full function.

RG2 robot refurbishment: A production facility refurbishing older FANUC RG2 robots replaces the A16B-2200-0200 as part of the control electronics renewal.

FAQ

Q1: What is the FANUC RG2 robot controller?

The RG2 is a compact FANUC robot controller for smaller industrial robots. It predates the R-J series controllers (R-J, R-J2, R-J3) that became FANUC's mainstream robot controller product line. The RG2 served compact robot bodies in applications requiring basic pick-and-place, material handling, and simple assembly functions. The A16B-2200-0200 is its main CPU PCB.

Q2: Does replacing A16B-2200-0200 require robot programme backup?

Yes. The main CPU PCB holds the robot's programmes in its memory. Before replacing A16B-2200-0200, all robot programmes and system variables must be backed up using the teach pendant or PC backup function. After fitting the replacement, programmes are restored from backup. If the board fails completely without backup, the programme must be re-taught or restored from a separately maintained copy.

Q3: Is A16B-2200-0200 compatible with other FANUC robot controllers (R-J, R-J2)?

No. The A16B-2200-0200 is specifically the main CPU PCB for the RG2 controller. The R-J, R-J2, and R-J3 series use different main PCBs from the A16B-3200 series (confirmed in this session). These boards are not interchangeable across controller generations.

Q4: What other boards typically accompany A16B-2200-0200 in the RG2 controller?

A robot controller requires multiple boards working together — the main CPU (A16B-2200-0200), servo axis control board, I/O board, and operator panel interface. A fault on any one board affects specific aspects of robot function. The main CPU fault typically produces complete loss of control function rather than specific axis or I/O faults.