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| Place of Origin | JAPAN |
| Brand Name | FANUC |
| Certification | CE ROHS |
| Model Number | A16B-2202-0853 |
The A16B-2202-0853 is a FANUC control PCB in the A16B-2202 family. Public industrial listings consistently identify this model as OPTION 2 MAIN-B 4-AXIS W/SUB CPU PCB.
Those listings give it a clearly defined role in the control hardware and distinguish it from generic accessory boards or simple signal-I/O cards.
This board belongs to the part of the installed system that handles an Option 2 Main-B 4-axis structure with sub CPU.
In practical replacement work, that description is the most important product identifier because it links the board directly to its original functional position inside the control architecture.
Some public listings also note that programming is required and that all parameters and programs must be reloaded, which reinforces the board’s control-level role.
| Parameter | Value |
|---|---|
| Part Number | A16B-2202-0853 |
| Manufacturer | FANUC |
| Product Type | PCB |
| Product Series | A16B-2202 |
| Public Description | OPTION 2 MAIN-B 4-AXIS W/SUB CPU PCB |
| Functional Clue | 4-axis with sub CPU |
| Public Service Note | Programming required; reload parameters and programs |
This board is suited to compatible FANUC control systems where the installed hardware already uses the Option 2 Main-B 4-axis structure and a sub CPU board arrangement.
Public listings position it as a board-level control spare rather than a general-purpose PCB, which makes it relevant to service, repair, and replacement work in existing control hardware.
Its role is broader than a simple daughter board because the published description ties it directly to a multi-axis control structure.
That is why exact model matching is especially important on this board family.
The key checks are the exact part number, the A16B-2202 family, and the public description Option 2 Main-B 4-axis with sub CPU.
If the installed control hardware depends on that same structure, those details are the main compatibility points.
Q1: What kind of board is A16B-2202-0853?
It is a FANUC control PCB publicly identified as OPTION 2 MAIN-B 4-AXIS W/SUB CPU PCB. That description places it at the control-board level and shows that it belongs to a specific multi-axis hardware structure rather than to a general-purpose signal-board category.
Q2: Why is the “4-axis with sub CPU” description important?
Because it defines the board’s functional role in the installed control.
Public listings consistently use that wording, and it is the clearest way to distinguish this board from other A16B-2202 family PCBs that may have different board functions.
Q3: What does the programming note tell you about this board?
Public listings note that programming is required and that all parameters and programs must be reloaded.
That indicates the board is tied closely to the control configuration and should not be treated as a passive plug-in spare with no setup impact.
Q4: Is this board treated as a central control PCB or a simple accessory?
It is treated publicly as a control PCB with a named axis/control role, not as a simple accessory.
The repeated description of the board as Option 2 Main-B 4-axis with sub CPU makes that clear in the available listings.
Q5: What should be checked before ordering?
Check the installed part number, confirm the system uses A16B-2202-0853, and verify that the original board is the same Option 2 Main-B 4-axis with sub CPU type.
Also confirm the installed system is ready for any required parameter and program reload after replacement.
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