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Product Introduction
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
| Parameter | Description |
|---|---|
| Model Number | NFDV551-P11 |
| Type | Digital Output Module |
| Number of Output Channels | 16 channels |
| Output Signal Type | 24 V DC digital output |
| Output Voltage Range | 18 – 32 V DC |
| Output Current Capacity | Up to 0.5 A per channel |
| Maximum Simultaneous Load | 8 A total per module |
| Output Response Time | < 5 ms typical |
| Isolation | Channel-to-channel and channel-to-system optical/electrical isolation |
| Power Supply Voltage | 5 V DC (from I/O bus) |
| Power Consumption | Approx. 4.8 W |
| Redundancy Support | Yes, supports dual redundant architecture |
| Diagnostics | Channel fault detection, loop monitoring, self-diagnosis |
| Operating Temperature | -20 °C to +55 °C |
| Storage Temperature | -40 °C to +70 °C |
| Humidity | 5 – 95 % RH (non-condensing) |
| Shock Resistance | IEC industrial compliance |
| EMC Compliance | IEC/EN standards for EMC in industrial environments |
| Dimensions (H × W × D) | 32.8 × 107.5 × 130 mm |
| Weight | 0.2 kg |
| Mounting | Installed on Yokogawa I/O base unit |
| System Compatibility | CENTUM VP, ProSafe-RS |
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:
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Oil & Gas: Control of solenoid valves, blowdown valves, and emergency shutdown equipment.
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Chemical and Petrochemical Plants: Driving relays, interlocks, and fire/gas safety systems.
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Power Generation: Controlling turbines, auxiliary systems, alarms, and protection circuits.
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Pharmaceutical Industry: Ensuring precise digital control of batch equipment and safety interlocks.
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Water and Wastewater: Automated actuation of pumps, gates, and treatment equipment.
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Heavy Industries (Steel, Mining): Field equipment actuation under harsh conditions.
Product Advantages
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High Reliability: Built for demanding process environments with redundancy support for uninterrupted operation.
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Fast Response: Less than 5 ms ensures real-time actuation for safety and control applications.
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Robust Isolation: Optical and electrical isolation protect the system from faults and cross-interference.
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Advanced Diagnostics: Equipped with self-checking, output loop monitoring, and fault detection.
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Compact and Lightweight: Saves cabinet space and simplifies installation.
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Seamless System Integration: Fully compatible with Yokogawa’s control platforms.
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Compliance with Standards: Meets international IEC/EN standards for EMC and safety.
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Scalable Design: Modular architecture allows for easy expansion of system I/O capacity.
Frequently Asked Questions (FAQ)
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How many digital output channels are available on the NFDV551-P11?
It provides 16 digital output channels. -
What is the maximum current supported per output channel?
Each channel can supply up to 0.5 A at 24 V DC. -
What is the total output load supported by the module?
The module can support a maximum of 8 A across all channels simultaneously. -
What is the typical response time of the outputs?
The response time is typically less than 5 milliseconds. -
Does the module provide channel-to-channel isolation?
Yes, each channel is electrically and optically isolated. -
Which types of devices can be controlled by this module?
It is suitable for solenoid valves, relays, alarms, interlocks, and shutdown devices. -
Does the module support redundant system operation?
Yes, it can operate in dual redundant system configurations. -
What diagnostic features are included?
The module supports loop monitoring, channel fault detection, and self-diagnosis. -
What is the typical power consumption of the module?
The power consumption is 4.8 W. -
Which Yokogawa systems are compatible with this module?
It is fully compatible with CENTUM VP and ProSafe-RS.
Related Models (Same or Similar Series)
| Model | Description | Channels | Signal Type |
|---|---|---|---|
| NFDV551-P10 S2 | Digital Output Module | 16 | 24 V DC |
| NFDV551-P10/CCC01 | Digital Output Module | 16 | 24 V DC |
| NFVU161-P50 S2 | Digital Output Module | 16 | 24 V DC |
| NFVU121-P50 S2 | Digital Output Module | 32 | 24 V DC |
| NFDV161-P50 S2 | Digital Input Module | 16 | 24 V DC |
| NFDV121-P50 S2 | Digital Input Module | 32 | 24 V DC |
Popular Yokogawa Models (Widely Used Across Systems)
| Model | Type | Channels | Application |
|---|---|---|---|
| NFDV551-P11 | Digital Output | 16 | Control of actuators, relays, shutdown devices |
| NFDV551-P10 S2 | Digital Output | 16 | Standard field device control |
| NFDV161-P50 S2 | Digital Input | 16 | Monitoring discrete process signals |
| NFVU161-P50 S2 | Digital Output | 16 | Output control for valves and alarms |
| NFAV161-P50 S2 | Analog Input | 16 | Process variable acquisition |
| NFAU141-P50 S2 | Analog Output | 8 | Control of actuators and valves |
