The ABB Aurora/ Power-One 5 kW control board is an electronic PCB module designed for the management and operational control of low-power photovoltaic inverters in the Aurora series. Engineered for precision, reliability, and stable performance, it represents the core logic unit of the inverter system.

⚙️ Main Function

The board is responsible for:

• Control of DC/AC conversion processes
• Management of MPPT (Maximum Power Point Tracking) algorithms
• Monitoring of electrical parameters (voltage, current, temperature)
• Supervision of system protections
• Communication with external interfaces and display modules

🔌 Technical Specifications

• Compatibility: ABB Aurora/ Power-One 5 kW inverters
• Board code: 3F25-99-1
• Compliance: RoHS (Pb-free)
• Architecture: High-density multilayer PCB

Components:

• Dedicated microcontrollers for logic control
• Signal and control integrated circuits
• Drivers and digital interfaces
• Signal conditioning and filtering circuits

🔗 Interfaces & Connections

• Multi-pin connectors for connection to:
  • Power boards
  • Internal sensors (current, voltage, temperature)
  • Communication modules
• Internal communication ports for diagnostics and control
• Interface to operator panel / inverter display

🧠 Advanced Functions

• Intelligent energy production control
• Dynamic efficiency optimization via MPPT
• Fault and protection management (overvoltage, overcurrent, temperature)
• Diagnostics and event logging
• Grid synchronization

🏗️ Structure & Quality

• Industrial-grade PCB with high-reliability layout
• SMD components for precision and durability
• Designed for continuous operation in demanding environments
• High resistance to electromagnetic interference (EMI)

🔧 Applications

• Spare part for ABB Aurora 5 kW photovoltaic inverters
• Repair and maintenance of PV systems
• Retrofit of existing installations

💡 Advantages

✔ Original compatible spare part for Aurora systems
✔ High operational reliability
✔ Complete inverter system management
✔ Easy integration and replacement