ABB TU818 Compact Module Termination Unit (MTU) for S800 I/O System

Description

Technical Specifications

• Product Type: Compact Module Termination Unit (MTU)
• Compatible System: ABB S800 I/O System
• Channel Capacity: 32 I/O signal termination channels
• Rated Voltage: 50 V
• Current Ratings:
  • Maximum per I/O channel: 2.5 A
  • Maximum per process power connection: 8 A
• Connection Type: Screw terminals (40-pole total connector)
• Wire Compatibility:
  • Solid wire: 0.5 – 2.5 mm²
  • Stranded wire: 0.5 – 1.5 mm²
• Mounting: Standard 35 mm DIN rail mounting with mechanical latch
• Dimensions (W x H x D):
  • Width: 64 mm (including connector), 58.5 mm (edge-to-edge installed)
  • Height: 170 mm (including latch)
  • Depth: 64 mm (including terminals)
• Weight: 0.17 kg
• Operating Temperature:
  • Horizontal mounting: 0 °C to +55 °C
  • Vertical mounting: 0 °C to +40 °C
• Storage Temperature: -40 °C to +85 °C
• Humidity: 5 – 95% RH (non-condensing)
• Protection Class: IP20 (IEC 60529)
• ModuleBus Interface: Integrated for signal distribution to I/O modules and cascading to adjacent MTUs
• Address Configuration: Automatic address generation via position signal shifting
• Mechanical Keying: Dual mechanical keys (6 positions each) for 36 unique module configurations
• Certifications & Compliance: CE, ATEX Zone 2, UL 61010-1, EN 61010-1, EN 61000-6-2/6-4 (EMC), RoHS

Functional Features

High-Density Compact Design

• 32-Channel Termination: Supports up to 32 field I/O signals in a minimal footprint, optimizing cabinet space.
• DIN Rail Mount: Secure mechanical latch ensures stable mounting and reliable grounding to the DIN rail.
• One/Two-Wire Compatibility: Accommodates both single-wire and two-wire field connections based on I/O module requirements.

Advanced Module Interface & Protection

• Mechanical Keying System: Prevents installation of incompatible I/O modules with 36 configurable code settings, eliminating configuration errors.
• Integrated ModuleBus: Distributes communication and power signals to the mounted I/O module and daisy-chains to subsequent TU818 units.
• Automatic Addressing: Generates and assigns correct I/O module addresses by shifting position signals to the next MTU in the chain.
• High Current Capacity: Handles up to 2.5 A per channel and 8 A per process connection for robust power distribution.

Industrial Reliability & Durability

• Robust Construction: Engineered with high-strength industrial materials to withstand vibration, shock, and temperature variations.
• Wide Environmental Tolerance: Maintains performance across extended temperature and humidity ranges for harsh industrial environments.
• EMC Compliance: Ensures immunity to electromagnetic interference and prevents signal distortion in electrically noisy environments.
• Maintenance-Friendly: Designed for quick, tool-free I/O module replacement with secure screw terminal connections for stable field wiring.

Versatile Compatibility

• Broad I/O Module Support: Fully compatible with a wide range of S800 I/O modules including:
  • Digital Input: DI810, DI811, DI818, DI830, DI840, DI880, DI885
  • Digital Output: DO818, DO840, DO880
  • Analog Input: AI810, AI815, AI835A, AI843, AI845, AI880A
  • Combined I/O: DP820, DP840

Application Scenarios

1. Oil & Gas Industry
   • Onshore oil refineries and petrochemical complexes
   • Natural gas processing plants and pipeline automation
   • Offshore platform control systems (non-hazardous or Zone 2 areas)
2. Power Generation
   • Thermal and combined-cycle power plants
   • Renewable energy (wind, solar, biomass) facilities
   • Power distribution and substation automation
3. Chemical & Pharmaceutical Manufacturing
   • Chemical processing and specialty chemical plants
   • Pharmaceutical production and biotechnology facilities
   • Batch process control and material handling systems
4. Metals & Mining
   • Iron and steel smelting and rolling mills
   • Non-ferrous metal refining operations
   • Mining conveyor and mineral processing systems
5. Water & Wastewater Management
   • Municipal water treatment and distribution networks
   • Industrial wastewater purification plants
   • Desalination facility process control
6. Pulp & Paper Industry
   • Paper mill process control systems
   • Pulping and bleaching operations
   • Drying and finishing line automation
7. Food & Beverage Production
   • Food processing and packaging lines
   • Beverage manufacturing and bottling plants
   • Hygienic process control and utility systems
8. Marine & Offshore
   • Commercial vessel engine control and monitoring
   • Offshore support vessel automation systems
   • LNG carrier cargo control systems