Product Profile – ABB TB840 (3BSE021456R1)

1. Product Overview

The ABB TB840 (3BSE021456R1) is a high-performance industrial variable frequency drive (VFD) designed to control AC motors with precision, flexibility, and reliability in demanding environments. This model belongs to a generation of robust drives capable of handling medium- to high-power motor applications while delivering stable speed and torque control. It addresses industrial needs for energy-efficient operation, smooth speed regulation, and consistent performance under dynamic load conditions.

The TB840 integrates advanced motor control algorithms with enhanced system protection and user-friendly configuration, striking a balance between durability and control flexibility. It excels in applications where precise speed profiling, multi-motor coordination, and extended reliability are critical.

2. Brand & Series

• Brand: ABB

• Series: TB800 Series — Industrial Drive Controllers

The TB800 Series is a family of modular AC drives engineered for industrial automation applications. It encompasses a range of models from lower-power general-purpose controllers to higher-power industrial drives equipped with extended communication and control capabilities.

3. Technical Parameters

4. Product Description

The TB840 is engineered to deliver precise motor control for complex industrial applications. Its advanced control algorithms provide stable performance across a wide range of speeds and load conditions. Whether the application demands gentle start-ups, abrupt stopping, or fine-tuned speed adjustments, the TB840 handles these demands while minimizing electrical and mechanical stress.

Structural design and component selection are optimized for durability, making this drive suitable for heavy-duty environments such as manufacturing plants, processing facilities, and industrial utilities. The modular architecture simplifies installation, maintenance, and possible field upgrades.

The built-in operator interface includes a multi-line LCD and intuitive keypad. These provide clear feedback on operational parameters such as current, speed, frequency, and alarms, enabling technicians to quickly commission, tune, and troubleshoot the drive without additional tools.

Comprehensive protection features are integrated into the hardware and firmware to safeguard the drive and motor against common operational hazards, including overcurrent, overvoltage, undervoltage, phase loss, and thermal overload. The drive’s onboard logic functions reduce the need for external control devices in simpler automation setups.

5. Typical Applications

The TB840 is suitable for a broad range of industrial motion control applications, including:

• Heavy industrial conveyors in manufacturing, logistics, and material handling centers

• Large centrifugal, progressive, and positive-displacement pumps in water treatment and processing plants

• Industrial fans and blowers in HVAC and environmental control systems

• Compression systems in industrial refrigeration and compressed air facilities

• Extruders and large mixing systems in plastics and rubber production

• Heavy-duty crushers, mills, and process equipment in mining and aggregate industries

• Marine and offshore auxiliary systems demanding precision control and safety integration

Its robust architecture and high overload tolerance make it well suited for applications that require consistent performance under variable conditions and heavy load swings.

6. Product Advantages

The key advantages of the TB840 include:

• High Power Capability: Designed to support medium- to high-power motor loads without auxiliary modules.

• Precision Control: Advanced vector control and closed-loop options improve torque and speed regulation under varying load conditions.

• Wide Communication Support: Multiple industrial network protocols facilitate seamless integration.

• Comprehensive Protection Suite: Built-in protective functions improve system reliability and reduce downtime.

• Modular Design: Simplifies servicing, part replacement, and field upgrades.

• User-Friendly Interface: On-board display and keypad make commissioning and monitoring intuitive.

• Energy Efficiency: Variable speed control capability reduces energy consumption compared with fixed-speed systems.

• Adaptable Logic Functions: Embedded logic reduces dependency on external controllers in many applications.

7. Same Series or Related Models

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