ABB TU847

Description

Detailed Parameter Table

ABB TU847

Product Introduction

The ABB TU847 is a high-capacity terminal unit designed to serve as a centralized wiring interface in large-scale industrial automation systems. It is specifically engineered to work seamlessly with ABB’s AC800M PLC system and compatible I/O modules, including the ABB DO820 3BSE008514R1 digital output module and ABB DI820 3BSE008513R1 digital input module.

With 64 terminals (32 for inputs and 32 for outputs), the ABB TU847 provides ample connectivity for field devices such as sensors, actuators, relays, and valves. Its robust terminal design supports larger wire sizes (up to 4 mm²) compared to smaller terminal units, making it ideal for systems with higher current requirements. By organizing wiring in a structured manner, the ABB TU847 simplifies installation, maintenance, and troubleshooting, ensuring efficient signal transmission between field devices and control modules. This makes it a vital component in industries such as automotive manufacturing, chemical processing, and power generation, where complex control systems demand reliable and organized wiring solutions.

Core Advantages and Technical Highlights

High Terminal Capacity

The ABB TU847 features 64 terminals, doubling the capacity of smaller units like the ABB TU830V2. This allows it to handle more field devices in a single unit, reducing the number of terminal units needed in large-scale systems. For example, in a automotive plant with multiple robotic workcells, the ABB TU847 can connect 32 sensors (via input terminals) and 32 actuators (via output terminals) to the ABB DO820 3BSE008514R1 and ABB DI820 3BSE008513R1 modules, streamlining the wiring layout in the control cabinet and minimizing clutter.

Versatile Wiring Support

Supporting wire sizes from 0.5 to 4 mm², the ABB TU847 accommodates both low-current signal wires and higher-current power wires for actuators. This versatility eliminates the need for separate terminal units for different wire types, simplifying system design. In a chemical processing plant, for instance, it can connect small-gauge wires from pH sensors (to input terminals) and larger-gauge wires from valve actuators (to output terminals) to the respective I/O modules, ensuring all connections are managed in one centralized unit.

Enhanced Durability and Safety

Constructed with high-quality materials, the ABB TU847 is built to withstand the harsh conditions of industrial environments. Its screw terminals provide secure connections that resist vibration, preventing signal loss or intermittent faults. The unit’s design ensures clear separation between input and output terminals, reducing the risk of cross-wiring and enhancing system safety. When paired with the ABB DO820 3BSE008514R1 digital output module, it forms a reliable interface that maintains signal integrity even in noisy electrical environments, such as near large motors or transformers.

ABB TU847

Typical Application Scenarios

In large manufacturing facilities with extensive production lines, the ABB TU847 serves as a central wiring hub for connecting numerous field devices to the control system. For example, in a semiconductor fabrication plant, it connects 32 temperature sensors and 32 pressure transducers (to input terminals) to ABB DI820 modules, and 32 heater controllers and 32 vacuum valve actuators (to output terminals) to ABB DO820 3BSE008514R1 modules. This centralized wiring setup allows technicians to quickly trace connections when troubleshooting, reducing downtime. The ABB TU847‘s large terminal capacity ensures that all these devices can be connected without the need for additional terminal units, optimizing control cabinet space.

In power generation plants, the ABB TU847 is used to connect field devices in turbine control systems. It links 32 vibration sensors and 32 speed sensors (input terminals) to input modules, and 32 fuel control valves and 32 cooling water pumps (output terminals) to ABB DO820 3BSE008514R1 modules. The unit’s ability to handle larger wire sizes ensures that power connections to the pumps and valves are secure, while its durable design withstands the high-vibration environment near turbines. By organizing these connections, the ABB TU847 simplifies maintenance, allowing engineers to quickly access and inspect terminals during routine checks.

In water treatment plants with multiple processing stages, the ABB TU847 manages wiring for a wide range of devices. It connects 32 flow meters and 32 level sensors (input terminals) to input modules, and 32 chemical dosing pumps and 32 filtration system motors (output terminals) to ABB DO820 3BSE008514R1 modules. The clear separation between input and output terminals helps operators avoid wiring errors during installation, ensuring that control signals from the PLC are correctly transmitted to the pumps and motors. This reliability is crucial for maintaining consistent water treatment processes and meeting regulatory standards.

Related Model Recommendations

• ABB TU830: A smaller terminal unit with 32 terminals, suitable for systems requiring fewer connections than the ABB TU847.
• ABB DO820 3BSE008514R1: A digital output module that pairs with the ABB TU847, using its output terminals to connect to actuators and control devices.
• ABB DI820 3BSE008513R1: A digital input module that works with the ABB TU847, utilizing its input terminals to collect signals from sensors and transducers.
• ABB TB820V2 3BSE013208R0001: A terminal base that can be used alongside the ABB TU847in mixed systems, providing additional terminal connections for specific modules.
• ABB 3BSE018741R15: A processor module that, when integrated with the ABB TU847and I/O modules, forms a complete control system for large-scale industrial applications.
• ABB RVAR-5612: A voltage regulator module that ensures stable power supply to the I/O modules connected via the ABB TU847, maintaining reliable operation.

Installation, Commissioning and Maintenance Instructions

Installation Preparation

Before installing the ABB TU847, ensure the control cabinet is clean, dry, and free from excessive vibration. The ambient temperature should be within -25°C to +60°C, with relative humidity not exceeding 95% (non-condensing). Required tools include a screwdriver (PH2), wire strippers, and a torque wrench (set to 0.6 – 1.0 Nm for terminal screws). Mount the unit on a 35 mm DIN rail, ensuring it is securely fastened to prevent movement. Use cable ties to route wires neatly into the terminal unit, separating input and output wires to avoid interference. Strip wire insulation to a length of approximately 10 mm, and tighten the terminal screws to the recommended torque to ensure secure connections.

Commissioning Steps

After installation, verify that all wires are connected to the correct terminals according to the wiring diagram. Use a multimeter to check for continuity between each terminal and the corresponding field device, ensuring no loose or crossed connections. Test the integration with the ABB DO820 3BSE008514R1 module by sending a control signal from the PLC and confirming that the connected actuator responds correctly. Similarly, test input connections by activating field sensors and verifying that signals are received by the input modules. Label each terminal with the corresponding device name to facilitate future maintenance.

Maintenance Suggestions

For daily maintenance of the ABB TU847, inspect the unit for dust accumulation and clean it with a soft, dry cloth. Check terminal screws periodically to ensure they remain tight, as loose connections can cause signal degradation or overheating. Inspect wires for signs of wear or insulation damage, replacing any damaged wires promptly. During scheduled maintenance, trace a sample of connections (both input and output) to verify they remain correctly connected to the intended devices. If a terminal becomes damaged, replace the entire unit with an ABB-approved spare to maintain system reliability. It is recommended to keep a copy of the wiring diagram near the control cabinet for quick reference during troubleshooting.

Service and Guarantee Commitment

The ABB TU847 comes with a 2-year warranty, covering defects in materials and workmanship under normal operating conditions. During the warranty period, ABB will replace any faulty units free of charge. Our global technical support team is available 24/7 to provide assistance with installation, wiring, and troubleshooting via phone, email, or online chat.

We offer comprehensive online resources, including installation manuals, wiring guides, and compatibility charts, to support efficient deployment of the ABB TU847. For enhanced support, optional service contracts provide on-site technical assistance, training sessions, and priority response times. ABB is committed to ensuring the ABB TU847 delivers reliable performance, leveraging our expertise in industrial automation components to keep your control systems operating smoothly.