High-Density Output Performance for Modern Control Systems
The Yokogawa NFDV561 Digital Output Module is designed as a high-capacity solution for industrial automation systems requiring reliable and synchronized control of field devices. With its ability to handle a large number of discrete outputs in a compact form, it plays a critical role in distributed control architectures where precision and uptime are essential.
Engineered for integration with Yokogawa CENTUM and STARDOM platforms, this module ensures stable signal transmission to actuators such as relays, solenoid valves, alarms, and interlocking systems. Its design emphasizes electrical stability, fast response, and long-term operational consistency in demanding process environments.
Technical Specifications
| Parameter | Specification |
|---|
| Model | NFDV561 |
| Module Type | Digital Output Module |
| Output Channels | 64 channels |
| Output Type | Transistor (sink-type) |
| Rated Voltage | 24 V DC |
| Load Voltage | 24 V DC |
| Load Current | Up to 100 mA per channel |
| Field Power Range | 20.4 – 26.4 V DC |
| Output ON Voltage | ≤ 2 V DC |
| OFF Leakage Current | ≤ 0.1 mA |
| Response Time | ≤ 3 ms |
| Isolation | Optical/electrical isolation |
| Withstanding Voltage | 2 kV AC (signal to system) |
| Power Consumption | ~700 mA @ 5 V DC |
| Field Supply Consumption | ~60–120 mA @ 24 V DC |
| Mounting Type | Rack-mounted I/O system |
| External Connection | MIL connector / pressure clamp |
| Dimensions (H × W × D) | Approx. 13.0 × 11.99 × 13.0 cm |
| Weight | Approx. 0.2 – 0.3 kg |
Industrial Applications
The NFDV561 module is widely used in large-scale industrial environments where multiple output signals must be controlled simultaneously with high reliability. Typical applications include:
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Oil & gas production and refining systems
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Petrochemical processing plants
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Power generation and distribution systems
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Continuous manufacturing and assembly lines
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Process safety and interlock control systems
Its 64-channel architecture makes it especially effective in complex installations where space optimization and centralized control are both required.
Key Advantages and Engineering Value
One of the most significant advantages of the NFDV561 is its high channel density, which allows engineers to manage a large number of field devices using a single module. This reduces wiring complexity and simplifies control cabinet design.
The module’s fast switching performance (≤ 3 ms) ensures precise execution of control commands, which is essential for time-sensitive industrial processes. Electrical isolation between channels enhances system stability by reducing noise interference and protecting internal circuits.
Its sink-type transistor output design provides consistent performance under continuous operation, making it suitable for long-duty industrial cycles. Additionally, its compatibility with Yokogawa distributed control systems supports scalable and flexible system expansion.
Technical FAQs
1. How many output channels does the NFDV561 support?
It supports 64 independent digital output channels.
2. What type of output does it use?
It uses sink-type transistor outputs for 24 V DC systems.
3. What is the maximum load per channel?
Up to 100 mA per channel.
4. What is the switching speed?
The response time is typically 3 milliseconds or less.
5. Is electrical isolation included?
Yes, it features optical and system-level isolation.
6. What is the operating voltage range?
20.4 to 26.4 V DC.
7. What devices can it control?
Relays, solenoid valves, alarms, and industrial actuators.
8. Is it suitable for continuous operation?
Yes, it is designed for 24/7 industrial use.
9. What improves its reliability in harsh environments?
Electrical isolation and low leakage current design.
10. What systems is it compatible with?
Yokogawa CENTUM and STARDOM control systems.
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