Yokogawa NFDV157-S00 S2 Digital Input Module

Product Introduction

The Yokogawa NFDV157-S00 S2 Digital Input Module is a high-performance discrete input interface specifically designed for Yokogawa’s NF Series Distributed Control Systems (DCS). This module captures digital signals from field devices, including switches, relays, and other discrete sensors, converting them into precise logic signals for processing by the control system.

Engineered for reliable operation in industrial environments, the NFDV157-S00 S2 offers fast signal detection, high noise immunity, and robust input filtering. Its design ensures accurate detection of even rapid or transient signal changes. Fully compatible with Autonomous Controller (AC) and NF Series platforms, it integrates seamlessly with analog, digital, and safety I/O modules.

The modular design allows for easy installation and flexible system expansion, making it ideal for critical industries such as power generation, oil & gas, chemical, and water treatment. Built-in protection mechanisms reduce maintenance needs and ensure consistent, reliable operation.

Product Parameters

Product Applications

The NFDV157-S00 S2 module is applied in a wide range of industrial process control systems:

• Power Generation: Monitoring turbine interlocks, breaker status, and auxiliary equipment signals.

• Chemical and Petrochemical Plants: Capturing valve positions, limit switch statuses, and safety interlocks.

• Oil & Gas: Detecting field sensor signals, emergency shutdown triggers, and tank level alarms.

• Water & Wastewater Treatment: Monitoring pump status, level switches, and other discrete process inputs.

• Manufacturing Automation: Real-time feedback from motor status, machine interlocks, and safety devices.

• Food & Beverage Processing: Integrating discrete input signals for process automation and safety control.

Product Advantages

• Fast Response Time: Detects input changes within 10 milliseconds for real-time monitoring.

• High Signal Integrity: Channel-to-channel and channel-to-system isolation maintain accurate signal detection.

• Robust Industrial Design: Resistant to electromagnetic interference and temperature fluctuations.

• Modular and Scalable: Easy to install in standard racks; supports system expansion.

• Built-in Protection: Over-voltage and short-circuit protection safeguard module and system.

• Seamless Integration: Fully compatible with NF Series and Autonomous Controller (AC) platforms.

• Reliable Event Capture: Ideal for monitoring critical digital signals in industrial processes.

FAQ

1. What type of signals can the NFDV157-S00 S2 module process?
   It processes discrete digital signals, including dry contact closures and 24 V DC logic signals.

2. How many input channels does this module provide?
   The module provides 16 independent digital input channels.

3. What is the response time for each input channel?
   Each channel responds to input changes within 10 milliseconds, ensuring fast signal detection.

4. Is the module electrically isolated?
   Yes, it features channel-to-channel and channel-to-system isolation for noise protection.

5. Can the module handle rapid signal changes in industrial environments?
   Yes, its 10 ms scanning frequency allows reliable detection of fast digital events.

6. What is the nominal input voltage requirement?
   The module operates at 24 V DC nominal input voltage.

7. Does the module include protective features?
   Yes, it has built-in over-voltage and short-circuit protection for each input channel.

8. Is it compatible with Yokogawa NF Series controllers?
   Yes, it integrates seamlessly with NF Series and AC platforms.

9. How does it maintain signal accuracy under electrical interference?
   Isolation, robust design, and input filtering ensure precise signal detection even in noisy environments.

10. Can the module be used for critical process monitoring?
    Yes, its fast response time and protection features make it suitable for monitoring essential digital signals in industrial processes.

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FAQ

1. What type of signals can the NFDV157-S00 S2 module process?
   It processes discrete digital signals, including dry contact closures and 24 V DC logic signals.

2. How many input channels does this module provide?
   The module provides 16 independent digital input channels.

3. What is the response time for each input channel?
   Each channel responds to input changes within 10 milliseconds, ensuring fast signal detection.

4. Is the module electrically isolated?
   Yes, it features channel-to-channel and channel-to-system isolation for noise protection.

5. Can the module handle rapid signal changes in industrial environments?
   Yes, its 10 ms scanning frequency allows reliable detection of fast digital events.

6. What is the nominal input voltage requirement?
   The module operates at 24 V DC nominal input voltage.

7. Does the module include protective features?
   Yes, it has built-in over-voltage and short-circuit protection for each input channel.

8. Is it compatible with Yokogawa NF Series controllers?
   Yes, it integrates seamlessly with NF Series and AC platforms.

9. How does it maintain signal accuracy under electrical interference?
   Isolation, robust design, and input filtering ensure precise signal detection even in noisy environments.

10. Can the module be used for critical process monitoring?
    Yes, its fast response time and protection features make it suitable for monitoring essential digital signals in industrial processes.

Recommended Related Models (Same Series)

Popular Yokogawa Models (Same Brand)

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