Excellent PLC
| Company Information | ||||||||
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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 NFA1543-S50/A4S00 Analog Input Module is a high-performance signal acquisition module developed for use in Yokogawa’s distributed control systems (DCS) and process automation platforms. It is engineered to provide precise and reliable analog signal conversion from field instruments to the control processor. This module is part of the advanced FA-M3 or CENTUM series architecture and is designed to handle multiple analog input channels with superior accuracy and stability.
The NFA1543-S50/A4S00 supports various types of analog inputs such as voltage, current, and millivolt signals, allowing integration with a wide range of sensors and transmitters in process industries. With a robust signal conditioning design, it provides excellent noise immunity, fast response time, and exceptional long-term stability.
Its modular construction enables easy installation, maintenance, and replacement without disturbing the field wiring. The combination of high isolation, fast sampling rate, and diagnostic capability makes it an ideal choice for demanding industrial automation environments where reliability and accuracy are critical.
Technical Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Yokogawa Electric Corporation |
| Model | NFA1543-S50/A4S00 |
| Product Type | Analog Input Module |
| Function | Acquires and converts analog signals for DCS/PLC systems |
| Input Type | Analog (Voltage/Current) |
| Number of Channels | 16 channels |
| Input Signal Range | -10 V to +10 V DC / 0–20 mA / 4–20 mA |
| Input Impedance | 250 Ω (current), 1 MΩ (voltage) |
| Resolution | 16-bit analog-to-digital conversion |
| Accuracy | ±0.1% of full scale (typical) |
| Sampling Speed | 100 ms per channel (configurable) |
| Isolation | Channel-to-channel and channel-to-ground isolation |
| Common Mode Rejection Ratio (CMRR) | > 100 dB |
| Power Supply Voltage | 24 V DC nominal |
| Power Consumption | Approx. 6 W |
| Connector Type | Removable terminal block |
| Calibration | Software-assisted auto-calibration |
| Diagnostics | Open-circuit, short-circuit, and signal failure detection |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -20°C to +70°C |
| Humidity | 10%–90% RH (non-condensing) |
| Vibration Resistance | 10–60 Hz, 0.075 mm amplitude |
| Insulation Resistance | ≥ 100 MΩ at 500 V DC |
| Dielectric Strength | 1500 V AC for 1 minute |
| Mounting Type | Module rack mount (standard Yokogawa I/O base) |
| Material | Industrial-grade flame-retardant resin |
| Color | Standard gray |
| Protection Rating | IP20 |
| Dimensions | 130 x 107.5 x 32.8 mm |
| Weight | 0.3 kg |
| Certifications | CE, UL, and RoHS compliant |
| Cooling Method | Natural air convection |
| Field Connection | 16-point terminal connector |
| System Compatibility | Yokogawa CENTUM VP / FA-M3 / CS3000 systems |
Applications
The Yokogawa NFA1543-S50/A4S00 Analog Input Module is designed to provide highly reliable analog data acquisition in a wide range of industrial and process control applications. It plays a critical role in gathering analog signals from sensors, transmitters, and other field devices, converting them into digital values for monitoring and control purposes.
Common applications include:
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Power Generation Plants: Measurement of turbine temperatures, generator voltages, and process parameters.
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Oil and Gas Processing: Monitoring of flow rates, tank levels, and pressure sensors in refinery automation systems.
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Chemical and Petrochemical Industries: Accurate signal acquisition from reactors, distillation columns, and flow systems.
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Pharmaceutical Production: High-precision temperature and humidity control for automated production lines.
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Water and Wastewater Treatment: Reliable input from pH sensors, level detectors, and flow transmitters.
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Food and Beverage Industry: Signal input for temperature and pressure control in automated manufacturing systems.
Advantages
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High Signal Accuracy: Provides 16-bit resolution for precise analog signal processing, ensuring stable and accurate data representation.
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Excellent Noise Immunity: Designed with advanced isolation and filtering techniques to minimize signal distortion and interference.
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Flexible Input Configuration: Supports multiple input types (voltage, current, millivolt), making it suitable for various applications.
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Fast Response Time: Capable of handling rapid analog input sampling for real-time control processes.
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Enhanced Diagnostics: Built-in self-diagnostics allow early detection of wiring errors and signal abnormalities.
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Modular Architecture: Easily replaceable without disturbing field wiring, reducing system downtime.
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Reliable Electrical Isolation: Prevents cross-channel interference and enhances system safety.
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Wide Environmental Tolerance: Operates effectively in industrial temperature and humidity ranges.
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Compact Design: Optimized for space-efficient installation in dense control cabinets.
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Long-Term Stability: Ensures consistent performance over extended operational periods under industrial conditions.
FAQ
1. What types of analog signals can the NFA1543-S50/A4S00 accept?
It supports voltage and current inputs, including 0–20 mA, 4–20 mA, and ±10 V DC ranges.
2. Does this module provide channel isolation?
Yes, it offers both channel-to-channel and channel-to-ground isolation for high reliability.
3. How many analog input channels are available?
The module supports 16 individual analog input channels.
4. What is the resolution of the analog-to-digital conversion?
It features a 16-bit resolution for high-precision signal processing.
5. Can it detect wiring or signal errors automatically?
Yes, it has built-in diagnostic features that detect open circuits, short circuits, and signal loss.
6. Is the module compatible with Yokogawa CENTUM VP systems?
Yes, the NFA1543-S50/A4S00 is fully compatible with CENTUM VP and FA-M3 systems.
7. What is the input impedance of the module?
It has an input impedance of 250 Ω for current inputs and 1 MΩ for voltage inputs.
8. Does the module require external power for analog loops?
No, it does not supply loop power; external loop power must be provided for 4–20 mA transmitters.
9. How is calibration performed?
Calibration can be done via software-assisted automatic calibration routines built into the system.
10. What type of terminal connection does it use?
The module uses a removable terminal block for secure and convenient field wiring.
Recommended Related Models (Same Series)
| Model | Description |
|---|---|
| NFA1541 | Analog Input Module (8 channels) |
| NFA1542 | High-Speed Analog Input Module |
| NFA1544 | Isolated Analog Input Module |
| NFA1550 | Analog Output Module |
| NFA1561 | Digital Input Module |
| NFA1572 | Digital Output Module |
Popular Yokogawa Models (Same Brand)
| Model | Description |
|---|---|
| AAI141 | Analog Input Module (standard type) |
| ADV151 | Digital Output Module |
| PW482 | Power Supply Module |
| CP345 | CPU Processor Module |
| AAP135 | Analog Output Module |
| ALR121 | Relay Output Module |
