Yokogawa AAV144-S50/A4S10 Voltage Input Module

The Yokogawa AAV144-S50/A4S10 is an industrial-grade voltage input module designed for seamless integration with Yokogawa’s CENTUM VP and ProSafe-RS control and safety systems. As part of the Field Control Unit (FCU) architecture, this module facilitates accurate acquisition and conversion of analog voltage signals from field devices into digital data for precise monitoring and control in critical process automation environments.

This module offers 8 isolated voltage input channels, robust electrical isolation, wide operating ranges, and high signal accuracy. The AAV144-S50 variant includes enhanced specifications for system-specific deployments, such as power plants, petrochemical facilities, and high-integrity applications that require strict compliance with industrial safety and performance standards.

Product Specifications

Product Applications

The Yokogawa AAV144-S50/A4S10 voltage input module is suitable for use in critical industrial automation systems that demand high reliability and precision. Applications include:

• Distributed Control Systems (DCS): Accurate voltage signal capture from field sensors, transmitters, and actuators

• Safety Instrumented Systems (SIS): Integration with ProSafe-RS to process voltage signals for emergency shutdown systems (ESD)

• Power Generation: Voltage acquisition in turbine monitoring, generator control, and substation equipment

• Oil and Gas: Used in upstream and downstream voltage signal monitoring, such as wellhead controls and compressor stations

• Chemical Processing: Real-time process control involving analog voltage outputs from flow, pressure, and temperature sensors

• Water & Wastewater Management: Capturing voltage signals from analytical instruments and pump controllers for process optimization

Product Advantages

• High Signal Precision: Features 16-bit ADC with ±0.1% full-scale accuracy, supporting detailed signal analysis

• Channel-to-Channel Isolation: Ensures safe and interference-free operation in noisy industrial environments

• Dual Range Compatibility: Accepts both ±10 V and 0–10 V signals, making it versatile across many field instruments

• Reliable Diagnostics: Includes intelligent diagnostic features for real-time monitoring and predictive maintenance

• Hot-Swap Functionality: Can be replaced without shutting down the system, reducing maintenance downtime

• Harsh Environment Tolerance: Operates reliably in wide temperature and humidity ranges typical of industrial facilities

• Compact Form Factor: Slim design saves valuable panel space without sacrificing functionality

• Noise Immunity: Designed for high CMRR and NMRR to handle electrical disturbances and transients

• Easy Integration: Fully compatible with Yokogawa’s control systems and engineering tools for rapid deployment

• Certified for Safety Use: Compliance with international safety standards allows use in SIL-rated safety systems

FAQ

1. What voltage ranges are supported by the AAV144-S50/A4S10 module?

   It supports both 0–10 V DC and ±10 V DC input voltage ranges.

2. Does the module offer per-channel electrical isolation?

   Yes, each input channel is electrically isolated from the others and from the system ground.

3. What is the ADC resolution of this module?

   The module utilizes a 16-bit analog-to-digital converter for precise voltage measurements.

4. Can this module detect an open input signal from a disconnected sensor?

   Yes, it features built-in open channel detection diagnostics.

5. Is the module suitable for safety-critical applications?

   Yes, when used within a ProSafe-RS system, it contributes to SIL-compliant architectures.

6. How is the module powered within the system?

   It is powered directly through the N-IO baseplate, requiring no additional external supply.

7. Does it support redundant configurations?

   Yes, it can be used in systems with controller and I/O redundancy for increased availability.

8. Can the module be hot-swapped during operation?

   Yes, hot-swapping is supported without interrupting the system when configured appropriately.

9. What level of noise rejection does this module offer?

   It offers ≥ 120 dB common-mode and ≥ 60 dB normal-mode rejection ratios.

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

    While not ultra-high-speed, the 20 ms conversion time per channel makes it suitable for most standard process control applications.