The XVC722AE101 (Part Number 3BHB002751R0101) is a high-speed communication and I/O expansion board designed for the ABB AC 800PEC (Power Electronics Controller) system. This module serves as a critical bridge between the main processor and external peripherals, providing the low-latency data throughput required for high-power semiconductor control. It is commonly integrated into excitation systems and large-scale frequency converters where synchronized data acquisition is mandatory.
Technical Datasheet
Product Specifications
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Model Number: XVC722AE101
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Part Number: 3BHB002751R0101
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System Series: AC 800PEC / UNITROL 6000
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Function: I/O and Communication Expansion
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Interface: Proprietary high-speed backplane connector
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Optical Ports: Integrated fiber optic channels for remote I/O link
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Power Supply: 24V DC (via backplane)
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Operating Temperature: -5°C to +70°C
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Mounting: Rack-mounted (within PEC subrack)
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Dimensions: 215mm x 165mm x 25mm
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Weight: 0.48 kg
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Country of Origin: Switzerland
Application Areas
The XVC722AE101 is primarily utilized in power plant control systems, specifically for UNITROL 6000 excitation and MEGADRIVE-LCI systems. It is used to expand the number of optical ModuleBus links, allowing the central controller to communicate with distant I/O stations or power modules in high-voltage environments where electrical isolation via fiber optics is necessary to prevent EMI interference.
Product Instructions
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Safety Precautions: Before installation, ensure the subrack is powered down. This expansion board contains sensitive optical components and high-density logic circuits that can be damaged by hot-swapping if the system is not specifically configured for it.
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Fiber Optic Handling: The optical ports on the XVC722AE101 are critical for performance. Ensure all fiber optic connectors are cleaned with an isopropyl alcohol wipe before insertion. Avoid sharp bends in the fiber cables to prevent signal attenuation.
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Hardware Addressing: Check the hardware address switches (if present) to ensure the board is recognized as the correct expansion node within the AC 800PEC project.
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Insertion: Slide the board into the designated slot of the subrack. Apply firm, even pressure to ensure the backplane connector is fully engaged. Tighten the front panel screws to secure the board and maintain grounding.
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Initialization: Upon power-up, use the PEC Tool software to verify that the expansion board is active. Check the “Link” LEDs on the front panel to confirm that communication with remote modules has been established.
Q&A: Frequently Asked Questions
What is the primary role of the XVC722AE101 in a UNITROL system? It acts as an interface expander. It allows the main controller (like a KUC711) to manage more I/O points and external devices by providing additional communication channels that are electrically isolated via fiber optics.
Can the XVC722AE101 be used in standard AC 800M PLC racks? No, the XVC series is specifically designed for the AC 800PEC hardware architecture used in power electronics. It is not compatible with the standard S800 I/O or AC 800M backplanes.
What should I do if the ‘Optical Link’ LED is off? Check the physical fiber connection first. Ensure the cables are not swapped (Tx to Tx instead of Tx to Rx). If the physical connection is sound, verify the firmware version of the expansion board matches the system software requirements.
Are there different versions of the XVC722? Yes, versions like the XVC722AE01 and XVC722AE101 exist. The AE101 is typically a later revision with updated components or revised logic for better stability in high-temperature environments.
Recommended Similar Models
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ABB XVC767AE101 (Communication and Pulse Module)
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ABB KUC711AE101 (Main Processor Module)
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ABB 3BHB003154R0101 (Power Supply Module)
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ABB UNS0863A-V1 (Excitation Interface Board)
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ABB CI840A (S800 Communication Interface)
