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| Place of Origin | JAPAN |
| Brand Name | FANUC |
| Certification | CE ROHS |
| Model Number | A20B-2100-0182 |
The FANUC A20B-2100-0182 is a model-specific PCB used in Beta Servo / I/O Link CNC control contexts.
Public parts listings describe it as a PC BOARD associated with Beta Servo SVU-4, SVU-12, SVU-20, I/O Link, and CNC, while another distributor broadly classifies it as a FANUC PCB and one source describes it as a power-supply PCB for robotics.
Because those descriptions are not fully uniform, the safest product-page positioning is to present it as a FANUC PCB for Beta Servo and I/O Link control applications, with exact machine matching recommended before purchase.
In service practice, a board in this category is typically purchased to restore original control-board function in an existing FANUC system rather than to redesign the drive architecture. That makes it especially relevant for repair departments, CNC maintenance teams, and spares buyers supporting machines that still rely on Beta servo-era hardware.
Where a machine is mechanically sound but electronically interrupted by board-level failure, the correct replacement PCB is often the fastest way back to stable operation.
This maintenance framing is an engineering inference based on the part’s repeated listing as a FANUC control/servo PCB.
| Parameter | Value |
|---|---|
| Part Number | A20B-2100-0182 |
| Manufacturer | FANUC |
| Type | PCB |
| Model Number | A20B21000182 |
| Publicly Listed Application | Beta Servo SVU-4 / SVU-12 / SVU-20 |
| Publicly Listed Control Context | I/O Link / CNC |
| Product Form | PC Board |
| Typical Use | Repair, replacement, maintenance support |
The A20B-2100-0182 fits a range of Beta Servo and I/O Link CNC maintenance scenarios, especially where the original drive/control architecture needs to be preserved.
Typical applications include:
Before replacing the A20B-2100-0182, technicians should verify whether the fault is actually in the control-card section rather than in the power stage, base card, or external wiring.
In older servo systems, several related boards may age together, so full amplifier-level inspection is usually the better repair method.
For installation, exact part-number matching is strongly recommended.
After replacement, the board should be checked under normal startup and running conditions to confirm stable control behavior and proper communication with the surrounding servo hardware.
Q1: What kind of FANUC part is A20B-2100-0182?
Public listings consistently identify it as a PCB / PC board, and several seller descriptions place it in Beta Servo SVU-4, SVU-12, SVU-20, I/O Link, and CNC environments.
That makes it best understood as a model-specific FANUC control board rather than a generic industrial PCB.
Q2: Why is the wording around this part sometimes inconsistent online?
Because niche spare parts are often described by different sellers using different internal catalog conventions.
For A20B-2100-0182, one source emphasizes a robotics power-supply PCB interpretation, while others describe it as a Beta Servo / I/O Link servo drive control PCB.
For a sales page, the most reliable approach is to keep the role broad and confirm against the machine BOM or original board label before ordering.
Q3: Is this part more relevant to repair work than to new machine builds?
Yes. The available market information around this model is centered on surplus, refurbished, exchange, and replacement supply rather than new OEM system design.
That strongly suggests it is mainly used for maintenance and board replacement in existing FANUC installations.
Q4: What should technicians verify before replacing this board?
They should confirm the exact part number, compare the board marking against the installed unit, and verify the machine’s servo/control context.
Because public descriptions connect this board to Beta Servo and I/O Link CNC applications, replacing it without checking the original machine configuration can create unnecessary risk.
This is practical engineering guidance based on the published application context.
Q5: Why does exact model matching matter for A20B-2100-0182?
Boards in servo and CNC control environments are tied to specific machine architectures.
Since this part is repeatedly identified by sellers as a Beta Servo / I/O Link CNC board, matching the exact model is the safest way to avoid fit, function, or compatibility issues during repair.
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