ABB 086351-004

Description

Product Description

The ABB 086351-004 is a critical power supply and communication interface module for the AC 800M controller family, specifically designed as part of the CI854 series or similar communication interfaces. This module functions as the essential power and signal conditioning unit that enables the main communication processor (like the CI854 PROFIBUS module) to operate correctly when installed in an AC 800M rack. The 086351-004 provides regulated voltage conversion and isolation, ensuring the attached communication module receives clean and stable power from the controller’s backplane while managing the electrical interface to the fieldbus network. Proper operation of high-performance communication interfaces in the AC 800M system relies on this supporting hardware. The ABB 086351-004 is therefore a key component for building robust, multi-network control architectures, ensuring that gateway modules function reliably in demanding industrial automation environments. Its role is fundamental for expansions where adding a new fieldbus segment is required.

Product Parameters

• Module Type: Power Supply / Interface Module for Communication Units

• Compatible Main Units: Designed to pair with specific ABB AC 800M communication interfaces (e.g., CI854 PROFIBUS module).

• Primary Function: Provides power conversion and electrical isolation for the connected communication processor module.

• Input Power: Derived from the AC 800M controller baseplate (typically 5V DC).

• Output Power: Supplies the required voltage(s) to the attached communication module.

• Isolation: Provides galvanic isolation between the controller’s internal electronics and the fieldbus network.

• Mounting: Installs directly onto the main communication module, forming a single unit that slots into the AC 800M rack.

• Status Indicators: May include LEDs for power status, though diagnostic details are typically shown on the main communication module.

• Operating Temperature: 0°C to +60°C (standard for AC 800M modules).

Advantages and Features

• Ensures Reliable Operation: The ABB 086351-004 is engineered to provide precise and clean power, which is crucial for the stable operation of sensitive communication electronics in the main module.

• Provides Critical Isolation: It acts as a protective barrier, isolating the core controller from electrical noise, surges, or ground potential differences that may be present on the fieldbus cable, thereby enhancing system reliability and safety.

• Simplifies System Design: This dedicated interface module allows ABB to optimize the main communication processor for data handling, while the 086351-004 handles power integrity, leading to a more robust overall design.

• Guaranteed Compatibility: Using the official ABB 086351-004 module ensures full compatibility and reliable performance with its paired communication module, avoiding potential damage or communication faults from using incorrect power sources.

• Modular and Service-Friendly: The modular design allows for easy replacement of either the power interface or the communication processor independently if a fault occurs, simplifying maintenance and reducing spare part costs.

Application Cases in Various Fields

• Process Industries (Chemical, Oil & Gas): Used as part of a CI854 setup to reliably connect an AC 800M safety controller to a PROFIBUS-PA network of field instruments in a hazardous area, depending on the isolation provided by the 086351-004.

• Power Generation: Enables the integration of an AC 800M controller managing turbine auxiliaries into a plant-wide PROFIBUS DP network for supervisory control, with the interface module ensuring noise immunity.

• Water & Wastewater: Facilitates the addition of a PROFIBUS communication port to an AC 800M controller in a remote pumping station, allowing it to report to a central SCADA system.

• Manufacturing: Forms part of the communication backbone when an AC 800M is used as a cell controller in an automotive plant, connecting to drives and I/O stations via PROFIBUS.

Comparisons with Competing Products

Direct comparisons are not typically made with “competing products” for a specialized component like the ABB 086351-004. Its true comparison is against:

1. Using an Incomplete System: Operating a communication module (e.g., CI854) without its correct mating 086351-004 interface is not possible, as the module will not receive power or be isolated.

2. Alternative System Architectures: Other PLC platforms (e.g., Siemens, Rockwell) integrate the power and isolation for communication interfaces differently, often onto the main module or the rack’s backplane. The ABB design using the 086351-004 is a specific, modular approach that allows for flexibility and targeted serviceability within the AC 800M ecosystem.

3. Third-Party or Generic Isolators: While generic fieldbus isolators exist, they are not designed to physically and electrically mate with the specific form factor and pinout of ABB’s communication modules. Using them would require custom engineering, void warranties, and introduce significant risk.

Selection Suggestions and Precautions

1. Mandatory Pairing: Understand that the ABB 086351-004 is not a standalone module. It must be selected and purchased as the required mating unit for a specific AC 800M communication interface (verify the exact required interface module part number from ABB documentation).

2. Verify Exact Compatibility: Always confirm from the latest ABB Hardware Manual or datasheet that the 086351-004 is the correct interface module for your specific revision of the main communication processor (e.g., CI854). Using an incorrect version can lead to malfunction.

3. Order as a Set: When purchasing a spare or a new communication interface, it is advisable to confirm if the 086351-004 is included or must be ordered separately to avoid commissioning delays.

4. Handling and Installation: These modules contain static-sensitive components. Handle with appropriate ESD precautions. Ensure the main controller is powered down before installing or removing the 086351-004 and its paired module.

5. Diagnosis: If a communication module fails, the issue could lie in the main processor, the 086351-004 interface, or the cabling. Having a spare 086351-004 on hand allows for efficient troubleshooting by substitution.

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