Yokogawa NFDV551-P11 Digital Output Module

The Yokogawa NFDV551-P11 Digital Output Module is a high-performance I/O module designed for distributed control systems (DCS) and safety instrumented systems (SIS). It belongs to Yokogawa’s proven family of I/O modules, supporting CENTUM VP and ProSafe-RS platforms.

This module provides reliable and secure digital outputs for controlling field devices such as solenoid valves, alarms, relays, and interlock systems. Its architecture is optimized for safety-critical and continuous process industries, offering robust isolation, fast response, and built-in diagnostic capabilities.

The NFDV551-P11 is engineered for easy system integration and scalability, enabling plant operators to maintain high availability and flexibility while ensuring compliance with global industrial standards.

Product Specifications

Product Applications

The NFDV551-P11 Digital Output Module is widely used in mission-critical automation and safety systems across multiple industries. Typical application areas include:

• Oil & Gas: Control of solenoid valves, blowdown valves, and emergency shutdown equipment.

• Chemical and Petrochemical Plants: Driving relays, interlocks, and fire/gas safety systems.

• Power Generation: Controlling turbines, auxiliary systems, alarms, and protection circuits.

• Pharmaceutical Industry: Ensuring precise digital control of batch equipment and safety interlocks.

• Water and Wastewater: Automated actuation of pumps, gates, and treatment equipment.

• Heavy Industries (Steel, Mining): Field equipment actuation under harsh conditions.

Product Advantages

• High Reliability: Built for demanding process environments with redundancy support for uninterrupted operation.

• Fast Response: Less than 5 ms ensures real-time actuation for safety and control applications.

• Robust Isolation: Optical and electrical isolation protect the system from faults and cross-interference.

• Advanced Diagnostics: Equipped with self-checking, output loop monitoring, and fault detection.

• Compact and Lightweight: Saves cabinet space and simplifies installation.

• Seamless System Integration: Fully compatible with Yokogawa’s control platforms.

• Compliance with Standards: Meets international IEC/EN standards for EMC and safety.

• Scalable Design: Modular architecture allows for easy expansion of system I/O capacity.

Frequently Asked Questions (FAQ)

1. How many digital output channels are available on the NFDV551-P11?

   It provides 16 digital output channels.

2. What is the maximum current supported per output channel?

   Each channel can supply up to 0.5 A at 24 V DC.

3. What is the total output load supported by the module?

   The module can support a maximum of 8 A across all channels simultaneously.

4. What is the typical response time of the outputs?

   The response time is typically less than 5 milliseconds.

5. Does the module provide channel-to-channel isolation?

   Yes, each channel is electrically and optically isolated.

6. Which types of devices can be controlled by this module?

   It is suitable for solenoid valves, relays, alarms, interlocks, and shutdown devices.

7. Does the module support redundant system operation?

   Yes, it can operate in dual redundant system configurations.

8. What diagnostic features are included?

   The module supports loop monitoring, channel fault detection, and self-diagnosis.

9. What is the typical power consumption of the module?

   The power consumption is 4.8 W.

10. Which Yokogawa systems are compatible with this module?

    It is fully compatible with CENTUM VP and ProSafe-RS.