Yokogawa SNB10D-225/CU2T Safety Node Unit

The Yokogawa SNB10D-225/CU2T Safety Node Unit is a key element of Yokogawa’s ProSafe-RS Safety Instrumented System (SIS) family, designed to deliver reliable, high-integrity safety signal processing for industrial safety applications. This safety node unit interfaces critical digital signals, ensuring prompt and accurate safety function execution.

Engineered to meet rigorous safety standards such as IEC 61508 SIL 3, the SNB10D-225/CU2T is tailored for environments demanding fault tolerance, operational reliability, and ease of integration. Its compact, modular design facilitates straightforward installation in Yokogawa’s rack systems, allowing for system scalability and simplified maintenance.

Product Specifications

Applications

The SNB10D-225/CU2T Safety Node Unit is widely utilized in industries where the safety of personnel, assets, and the environment is critical:

• Chemical and Petrochemical Plants: Controls emergency shutdowns and interlocks to prevent hazardous releases.

• Oil and Gas Industry: Provides safety signal management in upstream and downstream operations.

• Power Plants: Ensures protective functions for turbines, boilers, and auxiliary equipment.

• Pharmaceutical Manufacturing: Supports compliance with stringent safety regulations in production processes.

• Water and Wastewater Treatment: Monitors safety interlocks in automated treatment systems.

• Mining and Metals Processing: Secures high-risk operations like smelting and crushing.

Advantages

• High Safety Integrity: SIL 3 certification assures dependable operation in critical safety functions.

• Robust and Reliable: Operates efficiently in harsh environmental conditions with wide temperature and humidity tolerances.

• Redundant Communication: Employs a redundant safety network to ensure uninterrupted data exchange.

• Compact Modular Design: Easy to install, replace, and expand within Yokogawa’s rack systems.

• Low Power Consumption: Helps reduce overall system operating costs.

• Advanced Diagnostics: Built-in monitoring facilitates early fault detection and maintenance.

• Seamless Integration: Fully compatible with the ProSafe-RS platform for comprehensive safety solutions.

• Space Efficient: Slim profile allows for dense installation in control cabinets.

• Global Safety Compliance: Meets international standards for safety instrumented systems.

Frequently Asked Questions (FAQ)

1. What is the primary role of the SNB10D-225/CU2T unit?

   It acts as a safety node managing digital input and output signals within the ProSafe-RS safety system.

2. Is this module certified for safety applications?

   Yes, it is SIL 3 certified and meets IEC 61508 safety standards.

3. What kind of signals does it handle?

   It handles safety-related digital inputs and outputs.

4. What power supply does the unit require?

   It requires a 24 VDC power supply, common in industrial control systems.

5. What are the unit’s physical dimensions?

   The dimensions are 482.6 x 221.5 x 205 mm.

6. How heavy is the SNB10D-225/CU2T?

   It weighs 5.9 kg.

7. Can it operate in demanding industrial environments?

   Yes, it supports operation from -10°C to 55°C and 10% to 90% humidity (non-condensing).

8. Does it support redundant communication?

   Yes, it utilizes redundant safety network interfaces for high reliability.

9. Is it compatible with other Yokogawa SIS components?

   Absolutely, it integrates fully with the ProSafe-RS safety system.

10. How simple is installation and maintenance?

    Its rack-mounted, modular design allows easy installation and replacement with minimal downtime.