Product Short Description
The ABB TU516B9 (1SAP212000R0001) is a purpose-built I/O terminal unit designed for the ABB S500 I/O system, fully integrated with the AC500 programmable logic controller (PLC) family. It serves as the critical physical interface between S500 I/O modules (both analog and 24 V DC digital types) and field devices, providing secure, reliable signal termination and power distribution within industrial control panels. As a foundational component of the S500 I/O ecosystem, the TU516B9 ensures stable signal transmission, protection against electrical faults, and seamless integration with AC500 controllers, making it indispensable for automating processes across diverse industrial sectors. Its compact, DIN-rail mountable design adheres to industrial standards, facilitating easy installation, maintenance, and system expansion in both new projects and legacy upgrades.
Description
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | S500 I/O Terminal Unit |
| Order Code | TU516B9 (1SAP212000R0001) |
| Compatible System | ABB AC500 PLC & S500 I/O System |
| Supported I/O Types | Analog I/O Modules, 24 V DC Digital I/O Modules |
| Terminal Type | Spring Terminals (Tool-Free Connection) |
| Power Supply | 24 V DC (Nominal), with -15% / +20% Tolerance |
| Max. Total Current | 10 A (per separated process voltage terminal or internal connection) |
| Channel Configuration | Up to 32 Channels (Divided into 4 Groups of 8 Channels Each) |
| Mounting | 35 mm DIN Rail (7.5 mm or 15 mm Depth) per IEC 60715 |
| Dimensions (W x H x D) | 67.5 mm x 135 mm x 28 mm |
| Net Weight | 0.159 kg |
| Protection Rating | IP20 (System Level, with All Modules/Covers Installed) |
| Operating Temperature | 0 °C to +60 °C (Horizontal Mount); 0 °C to +40 °C (Vertical Mount) |
| Storage/Transport Temperature | -40 °C to +85 °C |
| Humidity | 5% – 95% RH (Non-Condensing) |
| Vibration Resistance | 2 Hz – 8.4 Hz: 3.5 mm Peak; 8.4 Hz – 500 Hz: 2 g (Sinusoidal) |
| Shock Resistance | 15 g, 11 ms (Half-Sinusoidal, All Three Axes) |
| EMC Compliance | EN 61000-6-4 (Emission: Class A); EN 61000-6-2 (Immunity: Class A) |
| Certifications | CE, RoHS, UL 508, CSA C22.2 No. 14 |
| Housing Material | UL 94 V-2 Flammability Rating |
| Wiring Method | Vertical Conductor Connection to PCB (Spring Terminals) |
Key Features
Seamless S500/AC500 Ecosystem Integration
- Universal Compatibility: Directly mates with all S500 analog and 24 V DC digital I/O modules, acting as the exclusive interface between field devices and the AC500 controller bus.
- Bus Interface Integration: Integrates the I/O bus interface, enabling direct communication between I/O modules and the AC500 CPU without additional adapters or configuration.
- System Standardization: Follows S500 mechanical and electrical standards, ensuring uniform panel design and easy replacement with other S500 terminal units (e.g., TU515).
Reliable Signal Termination & Protection
- Spring Terminal Technology: Tool-free, high-reliability spring terminals provide fast, secure wiring with consistent contact pressure, reducing installation time and loosening risks.
- Overcurrent/Overvoltage Protection: Safely limits current per terminal and guards against transient voltages, preventing damage to both field devices and I/O modules.
- Reverse Polarity Protection: Defends the unit and connected modules from damage due to incorrect power supply wiring.
- Galvanic Isolation: Ensures electrical isolation between field circuits and the controller bus, minimizing noise interference and ground loop issues.
Industrial-Grade Durability & Environmental Hardening
- Wide Temperature Tolerance: Operates reliably across a broad temperature range, with derated performance for vertical mounting in high-temperature environments.
- High Vibration/Shock Resistance: Resists industrial vibration and shock, ensuring stable operation in machinery, transportation, and heavy manufacturing settings.
- Corrosion & Salt Mist Immunity: Complies with ISA S71.04.1985 (Harsh Group A, G3/GX) for corrosive gas resistance and IEC 60068-2-52 (Severity Level 1) for salt mist tolerance (horizontal mounting).
- Low Power Consumption: Efficiently distributes 24 V DC power to I/O modules with minimal energy loss, reducing heat generation in control cabinets.
Simplified Installation & Maintenance
- Compact DIN-Rail Design: Fits standard 35 mm DIN rails, saving panel space and enabling flexible arrangement of I/O modules and terminal units.
- Modular Structure: Plug-and-play design allows quick replacement of I/O modules without disrupting the entire system, minimizing downtime.
- Clear Status Visibility: Integrates LED indicators for power, signal state, and fault diagnosis, providing instant visual feedback to maintenance personnel.
- Tool-Free Wiring: Spring terminals eliminate the need for screwdrivers during installation, speeding up setup and reducing human error.
Application Scenarios
Discrete Manufacturing & Automation
- Automotive Production Lines: Controls sensors, actuators, and conveyors for assembly, painting, and testing processes, ensuring high-precision, real-time operation.
- Food & Beverage Processing: Monitors and controls filling, packaging, and sorting systems, with resistance to moisture and cleaning chemicals.
- Electronics Assembly: Automates PCB handling, soldering, and inspection processes, requiring stable signal transmission and protection against ESD.
- Material Handling: Manages conveyor belts, robotic arms, and automated storage/retrieval systems (AS/RS) in warehouses and distribution centers.
Process Industries
- Oil & Gas Facilities: Connects field instruments (pressure, temperature, flow sensors) in refineries, pipelines, and wellheads, withstanding harsh environmental conditions.
- Chemical & Petrochemical Plants: Controls reactors, mixers, and storage tank systems, resisting corrosive atmospheres and explosive hazards.
- Water & Wastewater Treatment: Monitors pump stations, filter beds, and reservoir levels, with reliable performance in humid, corrosive environments.
- Power Generation: Connects I/O modules for turbine control, boiler systems, and auxiliary equipment in thermal, hydro, and renewable energy plants.
Infrastructure & Special Environments
- Railway & Mass Transit: Controls signaling, power supply, and station equipment, with high vibration resistance and compliance with rail industry standards.
- Marine & Offshore Systems: Operates on ships and offshore platforms, with salt mist and corrosion immunity for long-term reliability.
- Building Automation: Manages HVAC, lighting, and security systems in commercial and industrial buildings, providing efficient control and energy savings.
System Modernization & Expansion
- Legacy System Upgrades: Replaces outdated terminal units in existing AC500 systems without re-engineering the control program, reducing upgrade costs and downtime.
- Greenfield Projects: Serves as a foundational component for new AC500/S500 installations, enabling scalable expansion of I/O capacity as needed.
- Remote I/O Stations: Deployed in geographically dispersed remote sites (e.g., pump stations, wellheads) to connect field devices to a central AC500 controller.
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