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ABB TU834 3BSE040364R1 – Detailed Product Overview
Product Introduction
The ABB TU834 3BSE040364R1 is a robust Terminal Unit (TU) from ABB’s AC 800M family, engineered to offer a reliable, structured connection interface between field devices and I/O modules. As part of the S800 I/O series, the TU834 supports high-density signal processing with excellent modularity, ideal for distributed control systems in industrial automation.
Designed for redundant and non-redundant applications, TU834 provides connectivity to one or two I/O modules and incorporates a backplane for the communication and power interface. Its compact and rail-mounted form factor ensures easy integration in confined control cabinet spaces.
Product Advantages
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Flexible I/O Configuration: Compatible with both single and redundant I/O modules.
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High Channel Density: Supports up to 32 channels, enhancing cabinet space utilization.
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Easy Maintenance: Allows module replacement without disturbing wiring, reducing downtime.
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Field-Proven Reliability: Backed by ABB’s rigorous quality and reliability testing.
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Integrated Diagnostics: Supports status indication and troubleshooting features.
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Plug-and-Play Installation: Simplifies wiring and minimizes commissioning time.
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DIN-Rail Mountable: Fast and stable mechanical installation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | TU834 Terminal Unit |
| Part Number | 3BSE040364R1 |
| Product Type | S800 I/O Terminal Unit |
| Supported Modules | DO801, DI801, DI802, AI801, AO801, etc. |
| Channels Supported | 16/32 channels depending on the I/O module |
| Mounting | DIN-rail |
| Redundancy Support | Yes (for redundant I/O module configurations) |
| Field Connection | Pluggable screw or spring terminals |
| Internal Bus Interface | ModuleBus connection via ribbon cable |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% non-condensing |
| Insulation Voltage | 50 V (between field and system) |
| Material | Polyamide, self-extinguishing, halogen-free |
| Protection Class | IP20 |
| Dimensions | 126 x 64 x 105 mm |
| Weight | 0.28 kg |
| Certification | CE, RoHS, ATEX, UL, cUL |
| Compatibility | All S800 I/O modules, AC800M controller, CI8xx adapters |
Applications
The TU834 terminal unit is widely used in multiple industrial sectors requiring high-integrity control and monitoring of I/O signals. Its adaptability and design allow it to operate efficiently in both safety and non-safety systems.
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Oil & Gas Refineries
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Power Generation Plants
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Chemical and Petrochemical Facilities
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Water Treatment and Distribution
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Metals and Mining Industries
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Pharmaceutical Manufacturing
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Food and Beverage Processing
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Pulp and Paper Mills
Its high reliability and support for redundant configurations make it ideal for mission-critical systems where downtime must be minimized.
Frequently Asked Questions (FAQs)
Q1: What is the main function of the ABB TU834 3BSE040364R1?
A1: The TU834 acts as a terminal base for I/O modules in the S800 series, providing physical connections for wiring and a backplane interface for communication and power.
Q2: Can the TU834 be used in redundant systems?
A2: Yes, it fully supports redundant I/O configurations, allowing dual modules to ensure system continuity in case of failure.
Q3: What type of mounting is used for TU834?
A3: It is designed for DIN-rail mounting, which allows for easy installation and removal.
Q4: Is hot swapping supported with the TU834?
A4: Yes, the terminal unit allows for the replacement of I/O modules without disconnecting field wiring or shutting down the system.
Q5: What I/O modules are compatible with TU834?
A5: It supports a wide range of S800 I/O modules including DI801, DO801, AI801, AO801, and others.
Q6: What are the temperature tolerances of the TU834?
A6: It operates from -40°C to +70°C and can be stored between -40°C and +85°C.
Q7: Is there any diagnostic functionality in TU834?
A7: While diagnostics are mainly handled by the I/O modules, the TU834 supports status indication via connected modules and system interfaces.
Q8: What type of field connections does the TU834 offer?
A8: It provides pluggable terminals which can be either screw-type or spring-clamp depending on field wiring preferences.
Q9: Does the TU834 require any special configuration?
A9: No special configuration is needed. It acts as a passive unit and is recognized through the I/O module and system integration.
Q10: Can I mix different I/O modules with a single TU834?
A10: No, each TU834 is designed to host a specific I/O module or a pair in redundancy. Mixed modules require separate terminal units.
Related Models in the Same Series
| Model Number | Description | Channels | Dimensions (mm) | Weight |
|---|---|---|---|---|
| TU831V1 | Compact I/O Terminal Unit | 16 | 126 × 120 × 50 | 370 g |
| TU835 | Terminal Unit for Analog I/O | 8 | 119 × 152 × 51 | 400 g |
| TU836V1 | Extended Redundant I/O Terminal Unit | 16 | 126 × 152 × 55 | 430 g |
| TU837 | Terminal Unit with Diode Circuitry | 8 | 130 × 160 × 55 | 450 g |
| TU838 | Extended TU for Redundant Analog Signals | 8 | 119 × 180 × 55 | 460 g |
| TU839 | High Voltage TU for DO/DI Modules | 16 | 119 × 152 × 51 | 425 g |
Popular ABB Models
| Model Number | Description | Application Type | I/O Type | Weight |
|---|---|---|---|---|
| CI854AK01 | PROFIBUS DP Communication Interface | Communication | N/A | 300 g |
| PM864AK01 | AC 800M Controller | Central CPU | N/A | 1.1 kg |
| AI810 | Analog Input Module 4–20 mA | Analog Measurement | Input | 190 g |
| AO810V2 | Analog Output Module | Process Control | Output | 180 g |
| DI810 | Digital Input Module 24V DC | Field Signal Acquisition | Input | 200 g |
| DO810 | Digital Output Module 24V DC | Actuator Control | Output | 210 g |
| TU810V1 | Compact Terminal Unit | Standard Control | N/A | 360 g |
| S800 I/O Module Rack | Rack Assembly for Multiple I/O Modules | Modular Expansion | N/A | Varies |
