Excellent PLC
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| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The Yokogawa NFDV161-P50 is a high-performance digital input module designed to interface digital signals from field devices into a distributed control system (DCS). Engineered for integration with Yokogawa’s STARDOM and CENTUM series control platforms, this module enables the monitoring of ON/OFF status from field equipment such as switches, sensors, and contact outputs. Built with industrial robustness, it provides high reliability and stability in harsh environments.
This module is widely adopted in critical industries, including power generation, chemical processing, oil & gas, and manufacturing, where digital input signals must be collected efficiently and accurately. It is DIN rail mountable and built for redundancy and modular expansion.
Product Specifications
| Parameter | Description |
|---|---|
| Model Number | NFDV161-P50 |
| Manufacturer | Yokogawa Electric Corporation |
| Type | Digital Input Module |
| Input Channels | 16 points (16-channel digital input) |
| Input Signal Type | 24 VDC (positive logic) |
| Input Voltage Range | 18 to 30 VDC |
| Input Current | Approx. 3.0 mA at 24 VDC per channel |
| Isolation | Optical isolation per channel |
| Response Time | ≤ 10 ms |
| Connector Type | Removable terminal block |
| Mounting | DIN rail or base plate mounting |
| Power Supply | Supplied via base module |
| Power Consumption | Approx. 2.5 W |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% RH (non-condensing) |
| Vibration Resistance | Compliant with IEC 60068-2-6 (1.0 mm, 10–57 Hz) |
| Shock Resistance | Compliant with IEC 60068-2-27 |
| Dimensions (W×H×D) | 130 x 119.9 x 32.8 mm |
| Weight | 0.3 kg |
| Certifications | CE, RoHS, UL, CSA |
Product Applications
Industrial Automation:
Ideal for process automation systems in oil refineries, chemical plants, and pharmaceutical manufacturing units, where real-time digital inputs from field instruments are required.
Power and Energy:
Used in thermal, hydro, and nuclear power stations for status monitoring of circuit breakers, valves, and safety interlocks.
Water and Wastewater:
Employed in water treatment plants for monitoring pump statuses, gate positions, and alarm signals.
Building Management Systems (BMS):
Integrated in smart buildings for fire alarm systems, elevator status monitoring, and access control systems.
Transportation:
Used in railways and airports to monitor switchgear, signaling systems, and emergency stop mechanisms.
Product Advantages
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High Reliability: Industrial-grade construction ensures stable performance under harsh conditions.
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Optical Isolation: Each input is isolated to avoid interference and ensure system integrity.
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Fast Response: With a fast scan time of ≤10 ms, it ensures accurate status readings.
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Compact Design: Slim form factor helps conserve panel space in dense installations.
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Wide Operating Temperature: Operates reliably in extreme environments from -20°C to +60°C.
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Easy Maintenance: Removable terminal blocks allow for easy module replacement and wiring.
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Compliance: Meets global industrial standards (CE, UL, CSA), ensuring international compatibility.
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Seamless Integration: Natively supports integration with Yokogawa’s DCS/PLC platforms, reducing engineering efforts.
Frequently Asked Questions (FAQ)
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What is the input signal specification of the NFDV161-P50?
The module accepts 24 VDC digital inputs, with an acceptable voltage range from 18 to 30 VDC. -
Is this module compatible with Yokogawa’s STARDOM system?
Yes, the NFDV161-P50 is fully compatible with both STARDOM and CENTUM control systems. -
Can the NFDV161-P50 be used in safety-critical applications?
While it is highly reliable, safety system usage depends on system certification. Consult Yokogawa for SIL-rated alternatives. -
What kind of isolation is used for each channel?
Each channel is optically isolated from others to ensure signal integrity and noise immunity. -
What is the response time for digital inputs?
The response time is typically ≤10 milliseconds. -
Is the module hot-swappable?
No, the module is not designed for hot-swapping; power should be turned off before replacement. -
What are the maintenance requirements for the module?
Minimal maintenance is required. Periodic visual inspection and terminal checks are recommended. -
Can I mix NFDV161-P50 modules with other types in the same rack?
Yes, Yokogawa supports mixed module configurations as long as base modules and power supplies are sufficient. -
Is there a built-in diagnostic function?
Yes, the module provides diagnostic feedback through system integration, including signal status and error detection. -
What field devices can be connected to the NFDV161-P50?
Compatible with dry contacts, sensors, limit switches, and other digital signal devices within the voltage range.
Recommended Models (Same Series / Related Models)
| Model | Type | Channels | Signal Type | Description |
|---|---|---|---|---|
| NFDV121-P50 | Digital Input Module | 8 | 24 VDC | Compact 8-point version of digital input |
| NFAV161-P50 | Digital Output Module | 16 | 24 VDC | 16-channel output for actuator control |
| NFRT161-P50 | Relay Output Module | 16 | Relay contact | Provides isolated relay output functionality |
| NFAI841-P50 | Analog Input Module | 8 | 4-20mA | High-accuracy analog input module |
| NFAO321-P50 | Analog Output Module | 4 | 4-20mA | Analog signal output module |
| NFCV512-P50 | Pulse Input Module | 4 | Pulse signal | For high-speed pulse signal measurement |
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| Model | Type | Application | Description |
|---|---|---|---|
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| PW482-10 | Power Supply Module | System power backup | Redundant power for controller base |
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