Yokogawa NFAI543-S50 Analog Output Module

The Yokogawa NFAI543-S50 is a high-precision analog output module designed for industrial process automation and control. It belongs to the Yokogawa FA series, providing reliable analog output signals for distributed control systems (DCS) and process instrumentation.

This module converts digital commands from a control system into precise analog signals, enabling accurate control of actuators, valves, motors, and other industrial devices. Its design emphasizes high signal stability, low noise, and high precision, making it suitable for critical applications in industries such as chemical processing, power generation, oil & gas, water treatment, and pharmaceuticals.

The NFAI543-S50 ensures that process control systems maintain optimum performance and efficiency. Its capabilities allow operators to achieve precise process regulation, quick response to process variations, and enhanced system reliability.

Product Specifications

Product Applications

The NFAI543-S50 Analog Output Module is widely used in various industrial applications where precise analog control is essential:

• Chemical Processing: Accurate control of dosing pumps, flow regulators, and reactor systems.

• Power Plants: Analog control of turbines, boiler feedwater systems, and generator excitation.

• Oil & Gas Refineries: Distributed control of compressors, pumps, and refining reactors with stable analog outputs.

• Water and Wastewater Treatment: Management of aeration systems, pumps, and valves to maintain process efficiency.

• Food & Beverage Industry: Precise control of mixing, filling, and ingredient dosing systems.

• Pharmaceutical Manufacturing: High-precision control of blending, filling, and process systems to ensure product quality and compliance.

Product Advantages

• High accuracy output with ±0.1% of span for precise process control.

• 16-bit resolution ensures smooth and stable analog signals.

• Fast response time (≤10 ms) allows real-time adjustments in process loops.

• Electrical isolation of 500 VAC prevents interference between channels and power supply.

• Flexible output configurations (4–20 mA or 0–20 mA) support diverse control applications.

• Robust design ensures reliable operation in harsh industrial environments.

• Fully compatible with Yokogawa DCS and FA systems for seamless integration.

FAQ

1. What type of output does the NFAI543-S50 module provide?

   The module provides configurable 4–20 mA or 0–20 mA analog outputs suitable for industrial actuators and control devices.

2. How many analog output channels are available?

   It offers 4 independent output channels, allowing control of multiple devices simultaneously.

3. What is the maximum load resistance for each channel?

   The maximum load resistance is 550 Ω per channel, ensuring stable current output even under varying loads.

4. What is the output accuracy of the module?

   The analog output accuracy is ±0.1% of span, providing highly reliable control performance.

5. What is the typical response time?

   The response time is ≤10 ms, enabling rapid signal updates for dynamic process adjustments.

6. Does this module provide electrical isolation?

   Yes, it provides 500 VAC isolation between channels and power supply to prevent interference.

7. What is the operating temperature range?

   The module operates from 0°C to +55°C, suitable for standard industrial environments.

8. What is the resolution of the analog output?

   The analog output resolution is 16-bit, allowing precise and smooth control.

9. Which communication interface does it use?

   It uses a DCS bus interface compatible with Yokogawa FA and distributed control systems.

10. Can this module be used for high-speed actuator control?

    Yes, its fast response time and stable output allow high-speed actuator control in process automation applications.