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- Yokogawa
- AAV544-S50
- Voltage Output Module (Isolated)
- Japan
- 107.5 × 130 × 32.8 mm
- 0.2 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Yokogawa AAV544-S50 Voltage Output Module is a high-reliability isolated analog output module designed for Yokogawa CENTUM Distributed Control Systems (DCS). It converts digital control signals into precise analog voltage outputs, enabling accurate control of field devices such as actuators, valves, and industrial regulators.
This module is engineered for high-density output applications, electrical isolation, and stable long-term operation, making it suitable for critical process industries including oil & gas, petrochemical, power generation, and chemical processing systems.
The AAV544-S50 supports 16 isolated output channels with -10 to +10 V DC output range, ensuring precise and stable control performance in demanding industrial environments.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Yokogawa |
| Model | AAV544-S50 |
| Product Type | Isolated Voltage Output Module |
| System Compatibility | CENTUM VP / CENTUM CS 3000 |
| Output Channels | 16 channels (isolated) |
| Output Signal Range | -10 to +10 V DC |
| Allowable Load Resistance | ≥ 5 kΩ |
| Accuracy | ±0.3% FS or ±12 mV (whichever is greater) |
| Data Update Period | 10 ms |
| Step Response Time | Approx. 40 ms |
| Temperature Drift | ±0.1% / 10°C or ±10 mV / 10°C |
| Isolation Voltage | 1500 V AC (1 minute, output to system) |
| Power Supply | 5 V DC (via backplane) |
| Current Consumption | Max 860 mA |
| Power Dissipation | Approx. 5.5 W |
| Output Type | Analog voltage output |
| Mounting Type | Rack-mounted I/O module |
| Dimensions (H × W × D) | 107.5 × 130 × 32.8 mm |
| Weight | 0.2 kg |
Function and Working Principle
The AAV544-S50 operates as a digital-to-analog voltage conversion module within a DCS architecture.
Its working process includes:
- Receiving digital control signals from the DCS controller
- Converting digital values into analog voltage signals via DAC circuitry
- Applying isolation between system and field output circuits
- Generating stable -10 to +10 V DC outputs
- Continuously updating outputs in real time for process control
This ensures accurate regulation of industrial devices such as control valves, actuators, and analog-driven instrumentation systems.
Role in Industrial Control Systems
Within Yokogawa DCS architecture, the AAV544-S50 serves as a front-end analog output interface module.
Its key roles include:
- Providing precise analog voltage signals for field device control
- Supporting closed-loop process control systems
- Ensuring stable real-time output for automation loops
- Enabling accurate actuator positioning and regulation
It is essential for maintaining process stability, control accuracy, and operational reliability in industrial automation systems.
Industrial Applications
The AAV544-S50 is widely used in:
- Oil and gas refining systems
- Petrochemical processing plants
- Power generation and turbine control systems
- Chemical manufacturing automation
- Water treatment and utility systems
- Industrial distributed control systems (DCS)
It is especially suitable for continuous process industries requiring high-precision analog output control.
Installation and System Integration
Proper installation ensures optimal performance:
- Installed in Yokogawa CENTUM I/O racks or control cabinets
- Connected via system backplane architecture
- Requires load resistance ≥ 5 kΩ for proper operation
- Shielded cables recommended for noise reduction
- Proper grounding required to maintain signal stability
Configuration and scaling are managed through Yokogawa engineering tools within the DCS environment.
Compatible System Components
The AAV544-S50 typically works with:
- Yokogawa CENTUM VP / CENTUM CS 3000 controllers
- Field actuators and control valves
- Analog voltage-driven industrial devices
- System I/O backplane modules
- Process automation instrumentation systems
Together, these components form a complete distributed process control architecture.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| Yokogawa AAV542-S50 | Voltage Output Module | Non-isolated version | Standard control systems |
| Yokogawa AAI543-S50 | Current Output Module | 4–20 mA output | Industrial process control |
| Yokogawa AAV544-S53 | Enhanced version | Expanded configuration options | Advanced DCS systems |
| Yokogawa AAV541-S50 | Voltage Output Module | Lower channel density | Compact systems |
| Yokogawa AAI141 | Analog Input Module | Measurement side module | Signal acquisition systems |
Key Advantages
- 16-channel isolated high-density voltage output design
- Stable -10 to +10 V DC analog output
- High precision control with ±0.3% accuracy
- Fast 10 ms update cycle for real-time control
- Robust electrical isolation (1500 V AC)
- Compact industrial-grade module design
- Reliable long-term continuous operation
- Seamless integration with Yokogawa CENTUM systems
Technical FAQs
Q1: What is the main function of the AAV544-S50?
It converts digital control signals into analog voltage outputs for industrial process control.
Q2: What is the output range of this module?
It supports -10 to +10 V DC output signals.
Q3: Is the AAV544-S50 isolated?
Yes, it provides electrical isolation between output and system circuits.
Q4: Where is it commonly used?
It is used in oil & gas, petrochemical, chemical, and power generation industries.
Q5: What devices does it control?
It is used to control actuators, valves, and analog field devices.
Conclusion
The Yokogawa AAV544-S50 Voltage Output Module is a high-performance isolated analog output solution designed for industrial DCS systems. With its strong electrical isolation, stable voltage output, and precise control capabilities, it ensures reliable and accurate process regulation in demanding industrial environments.
It is widely used in mission-critical automation systems where output accuracy, system stability, and long-term reliability are essential.