Introduction
The Yokogawa NFAI543-S50/A4S00 Analog Output Module is a high-performance industrial signal output unit designed for precise analog control within Yokogawa STARDOM FCN/FCJ and distributed control system (DCS) architectures.
This module is engineered to convert digital control signals into stable analog outputs, enabling accurate actuation of field devices such as control valves, drives, and process regulators. The S50/A4S00 configuration typically indicates a standardized industrial build with a pressure clamp terminal structure, ensuring secure wiring, stable signal transmission, and simplified maintenance.
Built for continuous operation in demanding environments, it is widely used in industries where precise control output and system reliability are critical.
Technical Specifications
| Parameter | Specification |
|---|
| Model | NFAI543-S50/A4S00 |
| Manufacturer | Yokogawa |
| Type | Analog Output Module |
| Output Channels | Typically 8 to 16 channels (system dependent configuration) |
| Output Signal | 4–20 mA DC (standard industrial control output) |
| Resolution | 16-bit high precision |
| Accuracy | ±0.1% of full scale |
| Output Load Resistance | Up to 600 Ω (typical industrial loop condition) |
| Isolation | Channel-to-system isolation (designed for industrial noise immunity) |
| Update Time | Fast cycle control compatible (≈10 ms class response) |
| Communication | STARDOM FCN/FCJ backplane integration |
| Power Supply | System backplane powered |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% – 95% non-condensing |
| Dimensions | Approx. 130 mm × 105 mm × 32 mm |
| Weight | Approx. 0.2 – 0.4 kg |
| Mounting Type | Rack / FCN system base unit |
Applications
The NFAI543-S50/A4S00 module is designed for industrial environments requiring stable and precise analog output control.
Typical applications include:
-
Oil & gas process control systems
-
Petrochemical and refinery automation
-
Power plant turbine and boiler control loops
-
Water treatment and pumping station regulation
-
SCADA and DCS control output systems
-
Industrial valve positioning systems
-
Compressor and motor speed control interfaces
-
Manufacturing process automation systems
Its stable analog output performance makes it suitable for continuous closed-loop control applications.
Advantages
The Yokogawa NFAI543-S50/A4S00 delivers strong performance benefits for industrial automation:
-
High-precision analog output control ensures stable process regulation
-
16-bit resolution output provides smooth and accurate signal generation
-
Industrial-grade noise resistance improves system stability
-
Compact modular design supports high-density system integration
-
Reliable long-term operation in continuous-duty environments
-
Seamless integration with Yokogawa FCN systems
-
Stable loop control performance for critical process applications
-
Reduced wiring complexity with standardized terminal design (A4S00)
Technical FAQs
1. What is the main function of the NFAI543-S50/A4S00 module?
It converts digital control signals into analog output signals for industrial process control.
2. What type of output does it provide?
It provides standard 4–20 mA analog output signals.
3. Is the module used for input or output?
It is an analog output module used for control actions.
4. How many channels does it support?
It typically supports multi-channel output (system configuration dependent).
5. What systems is it compatible with?
Yokogawa STARDOM FCN/FCJ distributed control systems.
6. What is the accuracy level?
Approximately ±0.1% of full scale.
7. What is the operating temperature range?
-20°C to +70°C.
8. What is the mounting style?
Rack-mounted via FCN system base unit.
9. What is the weight of the module?
Approximately 0.2 to 0.4 kg depending on configuration.
10. What does A4S00 indicate?
It refers to a pressure clamp terminal configuration for secure industrial wiring.
A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale
