📝 Description

Used product. ABB / Power-One control and interface electronic board intended for the Aurora PVI67-3M62 67 kW module, part of the centralized Power-One/Aurora photovoltaic inverter family. The board provides interfacing between the module's electronic sections, contributing to the management of measurement, control, communication, and supervision signals.

⚙️ Main Specifications

• Brand: ABB / Power-One
• Inverter family: Aurora Power-One PVI Central
• Module: PVI67-3M62
• Module power: 67 kW
• Type: Control/interface electronic board
• Application: Centralized photovoltaic inverter
• Function: Management and interfacing of internal electronic circuits
• Control and supervision interfaces
• Signal processing and conditioning circuits
• Communication circuits
• Multipole connectors for connection to other module boards
  The 3M62 is also marketed as a PVI-M electronic subassembly for the Aurora 3M-series platform, with internal system control and communication functions.

🔧 Main Functions

The control/interface board is involved in:

• Signal acquisition and management
• Interface with the control system
• Communication with the DSP
• Module supervision
• Processing of signals from measurement sections
• Interface with power sections
• Management of control signals
• Monitoring of module operating conditions
• Communication between the inverter's electronic boards
  Correct operation of the board is therefore important for the module to communicate correctly with the inverter control system.

🔌 Purpose and Operation

The board provides an interface between the control electronics, DSP, measurement circuits, supervision system, and power section.
Signals from the different module sections are acquired and transferred to the control circuits. Likewise, commands generated by the control system are distributed to the relevant sections.
A board fault may therefore cause communication problems, failure to recognize the module, supervision anomalies, or module shutdown.

🧩 Compatibility

Main application:

• ABB / Power-One Aurora PVI67-3M62 – 67 kW
  STI Repair documentation explicitly identifies PVI67-3M62 and PVI67-3M67 among the Power-One centralized inverter modules.
  Before replacement, always verify:
• Complete PCB code
• Hardware revision
• Connectors
• Module configuration
• Exact inverter model

⚠️ Typical Faults and Symptoms

A fault in the control/interface board may result in:

• Loss of communication with the DSP
• Module not being correctly recognized
• Loss of communication with the supervision system
• Module failure to start
• Module lockup
• Intermittent operation
• Measurement signal anomalies
• Incorrectly acquired values
• Communication errors
• Repeated module shutdowns
  It is nevertheless necessary to distinguish a board fault from problems involving power supplies, wiring, connectors, DSP, power boards, or the electrical grid.

🚨 Possible Associated Errors

For the PVI67-3M62, centralized Aurora diagnostics include several error codes. These are not exclusive codes of the board, but may appear when the module presents a malfunction.

E005 – DSP Communication Error

This is the code most directly associated with a problem in the communication and control chain.
STI documentation indicates a possible internal module fault and recommends a complete restart and, if necessary, comparison/exchange of the module with another unit in the same rack. A recurring E005 may lead to E043 – Auto-Exclusion.

E006 – Overcurrent

Output current exceeds the maximum threshold. It may be caused by an AC-side problem or an internal module fault.

E007 – OCH / IGBT SAT

May be associated with grid disturbances or voltage dips, low irradiance, or an internal IGBT fault. If recurring on the same module, further diagnosis is required.

E014 – Overtemperature

May be caused by temperature sensors, high ambient temperature, or clogged filters.

E015 – Unbalanced Bulk

Indicates a voltage difference across the DC capacitors exceeding the threshold. The cause may be loss of insulation in the PV generator or an internal module problem.

E042 – Low Bulk

Indicates that the capacitor voltage is below the minimum threshold.

E043 – Auto-Exclusion

The module is excluded from the system after repeated faults. STI indicates E005, E007, E015, and E038 among the errors that may lead to auto-exclusion.
Important: the presence of one of these errors does not automatically demonstrate that the control/interface board is faulty.

🔍 Diagnostics

In the event of anomalies, it is recommended to check:

1. Auxiliary power supplies
2. Board connectors
3. Wiring and flat cables
4. DSP communication
5. Supervision connection
6. Measurement signals
7. Possible oxidation or deterioration
8. Fault log through Aurora CVI Central
9. Module behavior compared with other modules in the same rack
   STI specifically indicates module comparison/exchange as a diagnostic procedure when an error remains associated with the same unit.

🛠️ Common Services in Case of Failure

• PCB electronic diagnostics
• Power supply checks
• Communication circuit verification
• DSP interface inspection
• Supervision circuit verification
• Connector and flat-cable inspection
• Solder joint inspection
• Search for damaged traces
• Electronic component testing
• Replacement of faulty components
• Repair of traces and solder joints
• Oxidation removal/treatment
• Technical cleaning
• Functional testing
• Repair and refurbishment
• Board replacement
  Professional maintenance of 3M62/3M67 modules also includes inspection of boards, flat cables, connectors, capacitors, fans, contactors, circuits subject to oxidation, and subsequent power testing.

🛠️ Applications

• Centralized ABB / Power-One Aurora inverters
• PVI67-3M62 – 67 kW
• PVI Central module maintenance
• Electronic repair
• PCB replacement
• Inverter module refurbishment
• Spare parts for industrial photovoltaic systems

💡 Advantages

• Original ABB / Power-One spare part
• Specific to the Aurora centralized inverter architecture
• Suitable for maintenance and repair activities
• Allows work on the individual board without necessarily replacing the entire module
• Suitable for restoring PVI67-3M62 modules
• Useful for refurbishment and preventive maintenance

🛡️ Product Condition

Used board, unless otherwise specified for the individual unit.
The board may show normal signs of use resulting from installation inside industrial equipment.
The tested / working / untested status must be stated only according to the tests actually performed on the PCB.

📦 Package Contents

• 1 × ABB / Power-One electronic board

🟢 Summary

The ABB / Power-One control/interface board for PVI67-3M62 is an electronic component of the 67 kW Aurora centralized module, intended for communication management, control signals, measurements, and interfacing between the DSP, supervision system, and internal inverter sections.
The PVI67-3M62 is documented as a 67 kW module and belongs to the Power-One centralized inverter family together with the PVI67-3M67. Possible module errors include E005 – DSP Communication Error, E006, E007 – IGBT SAT, E014 – Overtemperature, E015 – Unbalanced Bulk, E042 – Low Bulk, and E043 – Auto-Exclusion. These codes are diagnostic indications for the complete module and do not automatically prove that the control board is faulty.

⚠️ Technical Note

For sale of the PCB alone, always specify the complete board code, hardware revision, connectors, and PVI67-3M62 inverter model, because 3M62 identifies the 67 kW module/inverter and not necessarily the Part Number of the individual PCB.