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The FANUC A16B-2203-0674 is an internal wiring/power PCB for compatible two-axis FANUC αiSV80/160 servo amplifier modules. FANUC documentation assigns it to the 200V-class A06B-6114-H210 and A06B-6117-H210 configurations.
This A16B board is a replacement component rather than a complete servo drive. Confirm the full PCB number, revision, A06B amplifier nameplate, connectors and power-device layout because similar αiSV boards support different axis-current combinations.
A16B-2203-0674 Product Information
| Brand | FANUC |
| Model / MPN | A16B-2203-0674 |
| Board Type | Servo amplifier wiring / power PCB |
| Servo Series | FANUC αi Servo |
| Amplifier / Axes | αiSV80/160 / two axes: L and M |
| System Voltage Class | 200VAC-input class |
| Compatible Amplifiers | A06B-6114-H210 and A06B-6117-H210 |
| Unit Specifications | A06B-6114-C210 and A06B-6117-C210 |
| L-Axis Rating | 19 Arms rated; 80 Apeak nominal limit |
| M-Axis Rating | 39 Arms rated; 160 Apeak nominal limit |
| Servo Control | HRV2 and HRV3 supported |
| Associated Control PCB | A20B-2101-0041; older specification A20B-2100-0741 |
| Condition | New, refurbished, or used 90% new; subject to stock |
| Testing | 100% tested before shipping; test video available |
| Handling | Normally 1–3 business days |
| Shipping / ETA | DHL, UPS, or FedEx worldwide; typically 3–7 business days |
| Warranty | 1 year for new/refurbished; 3 months for used 90% new |
| Service / Packing | Free technical support; anti-static reinforced packing |
αiSV80/160 Dual-Axis Function
Inside the complete amplifier, A16B-2203-0674 provides power-stage wiring and terminal connections for the L and M servo axes. The αiSV amplifier uses sine-wave PWM control with an IGBT bridge. The L axis provides 19 Arms rated output with an 80 Apeak nominal limit, while the M axis provides 39 Arms with a 160 Apeak limit.
Verified Amplifier Compatibility
FANUC configuration documentation specifically maps this board to A06B-6114-H210 and A06B-6117-H210 αiSV80/160 amplifiers. Do not extend compatibility to an L-type, later αi-B amplifier or another current rating solely because the housing, connectors or published current specifications appear similar.
Board Differences and Installation
A16B-2203-0673 is used for αiSV80/80, while A16B-2203-0675 is used for αiSV160/160. REACO CNC checks the label, PCB condition, terminals, capacitors, connectors, power devices, insulation and compatible amplifier operation where available. Isolate power and fully discharge the DC link before service.
Related resources: FANUC servo PCBs, FANUC CNC controls and FANUC servo repair services.
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