ABB TPPB-02

Description

Product Description

The ABB TPPB-02 is a high-performance, fully redundant power supply module designed for ABB’s AC 800M High Integrity and Safety controller family within the System 800xA automation platform. This module serves as a critical, fault-tolerant power source, providing uninterrupted, regulated DC power to the controller rack, its CPUs, and associated I/O modules. The defining feature of the ABB TPPB-02 is its 1:1 redundancy architecture, where two identical modules operate in parallel with active load sharing. If one unit fails, the other immediately assumes the full load without any interruption to the controlled process. This design is essential for safety instrumented systems (SIS) and critical control applications where power supply reliability is non-negotiable. The robust construction and advanced monitoring capabilities of the ABB TPPB-02 make it a cornerstone for building high-availability automation systems. Integrating the ABB TPPB-02 (https://www.example-link-abb-product.com) ensures the highest level of power integrity for controllers managing processes where downtime poses safety or significant financial risk. The reliability of the ABB TPPB-02 directly contributes to overall system mean time between failures (MTBF).

Product Parameters / Technical Specifications

• Manufacturer: ABB
• Product Family: System 800xA, AC 800M Controller Power Supplies
• Module Type: Redundant Power Supply Unit (PSU)
• Model: TPPB-02
• Input Voltage: Wide-range AC input, typically 85-264V AC, 47-63 Hz, for global operation.
• Output Voltage: +24V DC regulated output for field and logic power.
• Output Current/Power: Rated for a specific amperage (e.g., 10A, 20A) or power in watts, defining the total load capacity.
• Redundancy: True 1:1 (N+1) redundancy with active current sharing and automatic, bumpless failover.
• Monitoring & Alarms: Features “DC OK” relay contacts and status signals for integration into the control system’s diagnostic network, providing early warning of a supply failure.
• Efficiency: High switching efficiency to minimize heat generation and energy consumption.
• Protections: Comprehensive protection against overvoltage, overcurrent, short circuit, and overtemperature.
• Status Indicators: LED indicators for AC Power, DC Output, and Fault conditions on each unit.
• Mounting: Typically designed for DIN-rail mounting.
• Hot-Swap Capability: Allows for the replacement of a failed unit without powering down the controller system (when properly configured).

Advantages and Key Features

• Maximum System Availability: The primary advantage of the ABB TPPB-02 is the elimination of the power supply as a single point of failure, ensuring continuous operation of the critical controller.
• True Load Sharing: Both units in the redundant pair actively share the load, reducing stress on each unit and extending their operational life.
• Integrated Diagnostics and Alarm: Provides clear local and remote (via relay contacts) indication of power supply health, enabling proactive maintenance.
• Seamless Integration with AC 800M: Engineered specifically for the AC 800M High Integrity platform, ensuring correct voltage levels, monitoring interfaces, and physical compatibility.
• Robust and Reliable: Built with industrial-grade components for dependable 24/7 operation in demanding environments.

Application Cases in Various Fields

• Oil & Gas (Safety Systems): Powering an AC 800M High Integrity controller for an Emergency Shutdown (ESD) or Fire & Gas (F&G) system on an offshore platform.
• Chemical/Petrochemical: Ensuring uninterrupted power to a safety instrumented system (SIS) protecting a reactor or distillation column from overpressure or runaway reactions.
• Power Generation (Turbine Control): Supplying fault-tolerant power to a controller for critical burner management or turbine auxiliary systems.
• Pharmaceutical Manufacturing: Protecting batch processes in cleanrooms where a power loss to the control system could ruin a high-value product batch.
• Water & Wastewater (Critical Processes): Powering controllers for chemical dosing or disinfection where process upsets could lead to environmental or health safety issues.

Comparison with Competing Products

The ABB TPPB-02 competes with other redundant power supply solutions for high-end controllers, such as the Siemens SITOP PSU8600, Emerson (DeltaV) redundant power modules, and Rockwell Automation redundant power systems. Its key advantage is its certified and optimized design for the ABB AC 800M High Integrity system, offering guaranteed compatibility and support. Compared to using two independent standard power supplies, the TPPB-02 offers integrated load sharing, monitoring, and a designed form factor that simplifies engineering and installation.

Selection Suggestions and Precautions

• Selection Advice: Select the ABB TPPB-02 for AC 800M High Integrity controller applications where maximum system availability is required, particularly in safety-related or critical process control systems. Always implement it in a redundant pair. Selection must be based on a careful calculation of the total 24V DC load of the controller rack, ensuring a single TPPB-02 unit can handle the full load with a 20-30% safety margin.
• Precautions:
  1. Proper Redundancy Wiring: Strictly follow ABB’s wiring diagrams for connecting the two units in parallel, including the load-sharing and alarm contact connections. Incorrect wiring can disable the redundancy feature.
  2. Accurate Load Calculation: Miscalculating the load can lead to overloading a single unit during a failover event, causing a system shutdown. Include all modules’ power consumption.
  3. Cooling and Derating: Redundant power supplies generate heat. Ensure adequate ventilation in the cabinet. Derate the power supply capacity if the ambient temperature exceeds specifications.
  4. Input Protection: Each unit should be protected by a correctly rated fuse or circuit breaker on its AC input line as specified in the manual.
  5. Use of Genuine Parts: For system reliability and to maintain safety certifications, use genuine ABB TPPB-02 modules sourced from authorized distributors.

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