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ABB RINT6611C Main Circuit Interface Board  

1. Key Parameters

• Product Model: RINT6611C
• Product Series: ABB RINT-Series Industrial Converter Interface Boards (Main Circuit-Control Isolation)
• Core Function: Main circuit parameter acquisition (voltage/current); high-low voltage isolation; fault signal feedback; exclusive for ABB ACS880 converters.

2. Core Features

• Enhanced Isolation Safety: 2.5kVrms isolation withstands higher main circuit voltage fluctuations, preventing high-voltage leakage to control components (critical for ACS880’s high-power scenarios).
• High-Precision Acquisition: ±0.5% FS accuracy ensures accurate feedback of DC bus voltage and output current, supporting ACS880’s precise vector control for motors.
• ACS880 Exclusivity: Factory-matched to ABB ACS880 converters, enabling plug-and-play integration without additional calibration.
• Proactive Fault Feedback: Transmits pre-alarm signals (e.g., impending overvoltage) to the control board, allowing the converter to trigger protective actions in advance.

3. Application Fields

• ABB ACS880 Converters: Serves as the core interface for main circuit-control signal transmission in ACS880-series high-power frequency converters.
• Heavy-Duty Motor Drives: Supports parameter monitoring for large motors in steel mill rolling lines, mining conveyors, and marine propulsion systems.
• Process Industry: Enables safe signal exchange in converter-driven equipment for chemical reactor agitators, oilfield pumps, and wastewater treatment blowers.

4. Precautions

• Compatibility: Use exclusively with ABB ACS880-series converters; do not install in ACS800 or non-ABB converters.
• Installation: Follow strict ESD protection (anti-static wristband/gloves); ensure firm backplane connection to avoid signal dropout.
• Safety Operation: Never touch main circuit terminals when the converter is energized; de-energize and discharge the DC bus before maintenance.
• Spare Parts: Use genuine ABB RINT6611C units—non-genuine boards may have insufficient isolation, causing control board damage or converter malfunctions.

The structure and details of the product：

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