Description
FANUC A06B-6102-H226#H520 – αi Series 2‑Axis Servo Amplifier for 200V-class CNC Drives
The FANUC A06B-6102-H226#H520 is a 2‑axis αiSV servo amplifier module typically used on 200V-class FANUC CNC systems. From my experience, it’s a solid choice when you need dependable performance on medium-torque feed axes—think machining centers, CNC lathes, and automated transfer lines running αi-series servomotors. The “H226” designation corresponds to a 2‑axis, 26 A class module, while “#H520” indicates a specific hardware/software option set used by certain machine builders. You might notice that units with this suffix tend to be plug-compatible in most cases with 0i‑D/0i‑F/30i/31i controls via FSSB (fiber-optic) communication.
Our Order Placement Process and Guarantees
- Warranty: 365 days
- Lead time: 1 week if in stock; no more than one month at the latest
- Payment: 50% advance payment, full payment before delivery
- Express options: FedEx, UPS, DHL
Key Features
- 2‑Axis, 26 A class output – Suitable for mid-range αiS servo motors on feed axes where dynamic response and stable current control matter.
- FANUC FSSB fiber‑optic interface – Direct optical link to compatible FANUC CNCs (0i‑D/0i‑F/30i/31i), reducing noise sensitivity and simplifying wiring.
- Common DC bus with αi power supply – Shares a DC link with the αiPS module; regeneration is typically handled at the power supply level for efficient braking.
- Integrated diagnostics – Onboard status/alarm indicators help technicians pinpoint issues quickly during commissioning or service.
- Brake control and encoder I/F – Works with FANUC serial encoders and provides 24 V brake control for matched αi servomotors.
- Drop‑in form factor – Mechanically designed to mount alongside other αi modules in a standard CNC cabinet, speeding up replacement work.
Technical Specifications
| Brand / Model | FANUC A06B-6102-H226#H520 (αiSV, 2‑axis) |
| HS Code | 8504.40 (Static converters) |
| Axes / Current Class | 2 axes, 26 A class per axis (typical for H226) |
| Power Requirements | Supplied from αi Power Supply Module (DC link, approx. 283 VDC for 200V class); no direct AC mains to this module |
| Voltage Class | 200V class FANUC αi system |
| Communication Interfaces | FSSB (fiber‑optic) to FANUC CNC; serial encoder interface to αi servomotors; 24 V brake control |
| Signal I/O Types | Motor power U/V/W, encoder feedback (serial), brake output; diagnostics via panel indicators and CNC |
| Operating Temperature | 0–55°C inside cabinet (non‑condensing), typical FANUC spec |
| Cooling | Forced‑air cooling; install with adequate ventilation and vertical airflow |
| Installation Method | Panel mounting in sealed electrical cabinet alongside αi modules; vertical orientation recommended |
| Dimensions & Weight | Typical αiSV 2‑axis housing: approx. 380 H × 90 W × 280 D mm; ~7–8 kg (varies slightly by revision) |
| Compatibility | FANUC CNC 0i‑D/0i‑F/30i/31i series; αiS/αiF servomotors in the matching 26 A class |
Related or Supporting Products
- A06B-6110-H0xx (αiPS Power Supply Modules) – Required DC link source; choose capacity to match axis/motor load. For mid-range systems, an αiPS in the 20–30 class is typically paired with H226.
- A06B-6102-H126 – 1‑axis, 26 A class version if only a single axis is needed or for compact retrofits.
- A06B-6102-H223 / H231 – 2‑axis modules in adjacent current classes (23 A or ~31 A), used when axis current requirements differ slightly.
- αiS series servomotors – Matching motors (e.g., medium‑frame αiS models) with serial encoders and optional brakes for feed axes.
- FSSB fiber‑optic cables – Required for optical link between CNC and the servo amplifier chain; lengths depend on cabinet layout.
A customer in a precision parts plant swapped an older H223 with the H226 to support a higher‑torque Y‑axis. The change was largely plug‑and‑play; the only tweak was confirming the motor current parameters and verifying CNC compatibility with the #H520 option set.
Installation & Maintenance
- Cabinet & mounting – Install vertically on a rigid backplate in a sealed cabinet. Allow sufficient clearance above/below for airflow and next‑to modules for cable bend radius.
- Power topology – Feed the amplifier from the matching αiPS DC bus. Ground to the cabinet earth bar using the specified PE conductor size.
- Wiring – Use shielded motor cables and proper ferrules; route encoder and FSSB fiber paths away from high‑power lines. Brake wiring requires stable 24 VDC.
- Ventilation – Maintain clean filters and positive cabinet airflow. Dust buildup on the heat‑sink and fans, in many cases, is the root cause of thermal trips.
- Routine checks – Inspect connectors, fan operation, and alarm history during scheduled downtime. Back up CNC parameters/servo tuning files after any changes.
- Firmware/option compatibility – When replacing units with different #H5xx codes, confirm CNC software support and option matching before power‑up.
- Safety – Lockout/tagout before service. Discharge time for the DC link should be observed; wait the manufacturer’s recommended interval before touching terminals.
Quality & Certifications
- CE marked (EMC and Low Voltage directives)
- UL Recognized (component level) in many cases for North America
- RoHS compliant per typical FANUC αi series standards
- Manufactured under ISO 9001 quality systems
- Warranty: 365 days (exchange or repair service available depending on stock)
Helpful Ordering Notes
- Share your current CNC model, motor models, and any option code on the nameplate (#H520, etc.) so we can confirm drop‑in compatibility.
- If replacing a failed unit, a quick photo of the front label and connector layout usually speeds up verification.
- We can pre‑test modules on a FANUC test rack on request, which seems to reduce commissioning time in many cases.
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