The Yokogawa AAV144-S00/A4S00 Voltage Input Module is a high-density analog input module designed for industrial-grade monitoring and control within Yokogawa’s CENTUM VP and CENTUM CS 3000 Distributed Control Systems (DCS). It supports accurate acquisition of DC voltage signals from field instruments, offering isolated multi-channel analog signal input functionality. This model is particularly suited for large-scale process plants requiring robust performance, system reliability, and long-term signal stability.

Engineered for precision and durability, the AAV144-S00/A4S00 module offers 16 fully isolated channels, each capable of independently processing voltage inputs with high resolution. Its seamless integration into Yokogawa control platforms makes it an indispensable part of control system architecture in sectors such as oil & gas, power generation, petrochemicals, chemicals, water treatment, and pharmaceuticals.

Product Specifications

Product Applications

The AAV144-S00/A4S00 module is specifically engineered for critical voltage signal acquisition in complex automation environments. Typical use cases include:

• Oil & Gas Refining: Monitoring of control signals and field sensor voltages in harsh environments.

• Thermal and Nuclear Power Plants: Integration with turbine control systems and electrical subsystems.

• Chemical Production: Continuous voltage monitoring from process analyzers and transmitters.

• Water Treatment Facilities: Signal reception from flow, pressure, and chemical dosage instruments.

• Pharmaceutical Manufacturing: High-accuracy voltage signal tracking for compliance and quality control.

• Pulp & Paper Mills: Analog input interfacing with machinery sensors and environmental monitors.

Product Advantages

• High-Channel Density: Accommodates 16 isolated inputs in a compact form factor, ideal for high-density cabinet installations.

• Full Channel Isolation: Each channel is electrically isolated, reducing risk of signal interference or system fault propagation.

• Accurate Signal Processing: 16-bit A/D conversion ensures precise measurement of analog voltage inputs.

• Advanced Diagnostics: Built-in detection of signal failure and wire disconnection to minimize downtime.

• Robust Integration: Seamlessly compatible with Yokogawa’s CENTUM VP and CS 3000 platforms.

• Strong EMI Immunity: Designed to perform in electrically noisy industrial environments.

• Compliance with Global Standards: Meets CE, UL, CSA certifications for international usage.

• System Redundancy Support: Can be configured in redundant systems for high-availability architectures.

• Modular Installation: Easily inserted and replaced in field control stations without special tools.

• Lifecycle Support: Covered by Yokogawa’s long-term product support and system migration services.

FAQ

1. Can the input range of the AAV144-S00/A4S00 be configured for ranges other than ±10V?

   No, this module is specifically designed for ±10V DC input; for other ranges, different modules must be used.

2. Is each channel individually isolated from others and from the system bus?

   Yes, each input channel is galvanically isolated to prevent signal crosstalk and ensure safety.

3. What is the resolution of the analog-to-digital converter?

   The module uses a 16-bit A/D converter, providing high-resolution voltage measurements.

4. Does the module support signal diagnostic features such as wire break detection?

   Yes, it includes open wire detection and abnormal signal diagnostics.

5. Can the AAV144-S00/A4S00 module operate in redundant configurations?

   Yes, it supports redundancy in compatible Yokogawa control systems.

6. What is the default channel sampling time?

   The conversion time is approximately 50 milliseconds per channel.

7. Does this module support remote calibration?

   Yes, calibration and configuration can be performed through Yokogawa’s engineering tools.

8. What is the typical input impedance for each channel?

   Each channel has a high input impedance of ≥10 MΩ, suitable for precision measurements.

9. How does the module protect against voltage surges?

   It includes internal overvoltage protection circuitry for transient voltage events.

10. Is this module suitable for safety instrumented systems (SIS)?

    While it is reliable, SIS use requires modules specifically certified for safety applications (e.g., SIL-rated models).