Product Introduction
The Yokogawa NFDV557-S00 S2 Digital Output Module is a high-density, industrial-grade control component designed for precise and reliable ON/OFF signal actuation in advanced distributed control systems. Integrated within Yokogawa’s STARDOM and FCN architectures, this module delivers fast, isolated transistor outputs for driving field devices such as solenoids, relays, alarms, and indicator systems.
Built for demanding process environments, it combines high-speed switching, strong electrical isolation, and compact design—making it a trusted solution for continuous industrial automation.
Technical Specifications
| Parameter | Specification |
|---|
| Model | NFDV557-S00 S2 |
| Module Type | Digital Output Module |
| Output Channels | 32 channels |
| Output Type | Transistor (sink type, 24 V DC) |
| Rated Output Voltage | 24 V DC |
| Output Current | Up to 0.5 A per channel |
| Surge Tolerance | Up to 1.0 A (short duration) |
| Response Time | ≤ 3 ms |
| Isolation | Optical isolation between system and channels |
| Protection Features | Overcurrent & overvoltage protection |
| Power Consumption | < 10 W |
| Operating Temperature | -10°C to +55°C |
| Storage Temperature | -20°C to +70°C |
| Dimensions (H×W×D) | 130 × 45 × 250 mm (typical variant) |
| Weight | Approx. 0.3–0.42 kg |
| Mounting Type | Rack-mounted FIO system module |
Industrial Applications
This module is widely used in automation systems requiring fast, reliable output switching and high system stability:
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Oil & gas production and refinery automation
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Petrochemical and chemical processing plants
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Power generation and turbine control systems
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Large-scale manufacturing automation lines
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Safety interlock and alarm control systems
Its high channel density and fast response make it particularly effective in distributed control architectures.
Technical FAQs
1. What is the main function of this module?
It provides digital ON/OFF output signals to control field devices in automation systems.
2. How many output channels does it support?
It supports 32 independent digital output channels.
3. What is the output type?
It uses 24 V DC transistor sink outputs.
4. What is the switching speed?
Typical response time is approximately 3 milliseconds.
5. Can it operate continuously?
Yes, it is designed for 24/7 industrial operation.
6. What protection features are included?
Overcurrent and overvoltage protection are built in.
7. What does the S2 designation mean?
It indicates a specific enhanced revision variant within the NFDV557 series.
8. Is it suitable for noisy industrial environments?
Yes, optical isolation improves resistance to electrical noise.
9. What systems is it compatible with?
It integrates with Yokogawa STARDOM and FCN/FCN-RTU systems.
10. Why is it widely used in large plants?
Because it combines high density, fast response, and strong reliability in a compact design.
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