Description
The Mitsubishi R28TB is a highly versatile and robust Teach Pendant (also known as a Teaching Box or Handheld Operator Panel) designed specifically for Mitsubishi Electric’s industrial robotic systems. As a critical Human-Machine Interface (HMI), the Mitsubishi R28TB serves as the primary bridge between operators and robotic machinery, allowing for precise manual control, intuitive programming, and real-time system monitoring. Whether used for initial setup, daily operation, or complex troubleshooting, the Mitsubishi R28TB ensures that engineers have complete command over the robot’s motion and logic.Engineered to meet the rigorous demands of modern manufacturing, the Mitsubishi R28TB combines ergonomic design with powerful processing capabilities. It supports multiple programming methods, including graphical interfaces and standard programming languages, making it adaptable to a wide range of automation tasks. By integrating advanced safety functions and a user-friendly display, the Mitsubishi R28TB not only enhances operational efficiency but also significantly improves workplace safety, making it an indispensable tool in automated production environments.

Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | R28TB |
| Manufacturer | Mitsubishi Electric |
| Product Type | Robot Teach Pendant / Handheld Programmer |
| Compatible Systems | Mitsubishi Industrial Robots (e.g., RV Series, EPSON RC+ environments) |
| Display Interface | Intuitive LCD Screen with Status Indicators |
| Programming Support | Graphical Programming, C-Language, SPYL+ |
| Safety Features | Integrated Emergency Stop, 3-Position Deadman Switch |
| Communication Interface | Serial / Proprietary Robot Controller Bus |
| Operating Voltage | 24V DC (Supplied via Robot Controller) |
| Physical Design | Ergonomic Handheld Grip with Industrial-grade Casing |
| Weight | Approx. 1.2 kg (Standard Teach Pendant Weight) |
| Mounting Type | Handheld / Hook Mount on Control Cabinet |
Main Features and Advantages
User-friendly interface and flexible programming
The Mitsubishi R28TB is renowned for its intuitive operation panel, which simplifies the complexities of robotic control. Operators can easily monitor real-time operating status, adjust parameters, and visualize complex path planning directly on the screen. Furthermore, the Mitsubishi R28TB supports a highly flexible programming environment. It is compatible with advanced development environments like EPSON RC+, offering features such as multi-tasking and source-level debugging. This allows programmers to customize logic using graphical tools or languages like C and SPYL+, significantly reducing development time.Robust safety and reliability
Safety is paramount in industrial automation, and the Mitsubishi R28TB integrates multiple protective measures to ensure secure operation. It features a standard 3-position deadman switch and a prominently placed emergency stop button, ensuring that the robot halts immediately if the operator loses control or encounters a hazard. The durable, industrial-grade construction of the Mitsubishi R28TB ensures it can withstand the vibrations, dust, and occasional impacts common on factory floors, providing long-term reliability.Seamless integration and efficiency
Designed to work seamlessly with Mitsubishi robot controllers, the Mitsubishi R28TB eliminates the need for complex communication infrastructure setup between the pendant and the controller. Its plug-and-play capability allows for rapid deployment. By providing high-precision motion control feedback, the Mitsubishi R28TB helps optimize cycle times and improve product quality in tasks ranging from simple handling to intricate assembly.
Application Field
Automotive manufacturing and assembly
In the automotive sector, precision and speed are critical. The Mitsubishi R28TB is extensively used to program and control robots responsible for welding, part assembly, and adhesive dispensing. Its high-precision control capabilities allow operators to teach complex paths for robotic arms, ensuring that every weld and component placement meets strict quality standards.Electronics and semiconductor packaging
For the electronics industry, where components are delicate and tolerances are microscopic, the Mitsubishi R28TB provides the fine-tuned control necessary for pick-and-place operations and packaging. The ability to use graphical programming on the Mitsubishi R28TB allows engineers to quickly adapt robotic movements for new product lines, facilitating rapid changeovers in high-mix production environments.General material handling and logistics
In warehousing and general manufacturing, the Mitsubishi R28TB is vital for palletizing and material handling robots. Operators rely on its reliable interface to monitor system health and intervene manually when necessary. The ergonomic design of the Mitsubishi R28TB reduces operator fatigue during long teaching sessions, ensuring consistent performance throughout the workday.

Related Products
- RV-4AJL-S311: A Mitsubishi industrial robot model that is commonly controlled and programmed using the R28TB teach pendant.
- CR-E116: A Mitsubishi robot control cabinet (controller) that serves as the main processing unit interfacing with the R28TB.
- P6TB-1: Another model of a Mitsubishi teach pendant, often used as an alternative or for older series robots compared to the R28TB.
- BKO-FA0597H07: A specific part number often associated with the R28TB assembly, representing a repair component or sub-module of the teach pendant.
- BKO-FA0823H07: A variant or replacement part number compatible with the R28TB series, frequently referenced in maintenance and repair contexts.
- EPSON RC+: While a software environment, it is closely related as the R28TB hardware is often utilized within development ecosystems supporting this platform.
- Mitsubishi RV Series: A broad category of Mitsubishi robots (e.g., RV-2AJ, RV-13AJ) that rely on the R28TB for direct human interaction and programming.
Installation and Maintenance
Pre-installation preparation: Before connecting the Mitsubishi R28TB, ensure that the main robot controller (such as the CR-E116) is completely powered off to prevent electrical surges. Inspect the connection cable of the Mitsubishi R28TB for any signs of wear, cuts, or exposed wiring, as a damaged cable can lead to communication failures or safety hazards. Verify that the connector pins are clean and free of debris to ensure a stable data link between the pendant and the controller.Maintenance recommendations: To maintain the longevity of the Mitsubishi R28TB, regularly clean the screen and casing with a soft, dry cloth; avoid using harsh chemical solvents that could damage the display or industrial labeling. Periodically test the functionality of the emergency stop button and the 3-position deadman switch to ensure they are responding correctly, as these are critical safety features of the Mitsubishi R28TB. If the unit is dropped or suffers a heavy impact, have it inspected by a qualified technician to ensure internal components remain intact.




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