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Product Overview
The Yokogawa AAI543-S03/A4S00 is a high-performance isolated current output module designed for use in CENTUM series control systems. It provides 16 independent channels of 4–20 mA DC analog outputs, ensuring reliable signal transmission to field devices such as control valves and actuators. Featuring robust isolation between output and system, as well as redundancy options, this module is suitable for demanding process automation applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | AAI543-S03/A4S00 |
| Function | 16-channel isolated analog current output |
| Output Signal | 4–20 mA DC |
| Allowable Load Resistance | 0–750 Ω |
| Circuit-Open Detection | Less than 0.65 mA |
| Accuracy | ±48 μA |
| Data Update Period | 10 ms |
| Drift (Ambient Temperature) | ±16 μA/10°C |
| Withstanding Voltage | Between output and system: 1500 V AC for 1 min |
| Maximum Current Consumption | 230 mA (5 V DC), 540 mA (24 V DC) |
| External Connection | Pressure clamp terminal |
| HART Communication | Supported |
| Dimensions | 107.5 × 32.8 × 130 mm |
| Weight | 0.4 kg |
Applications
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Industrial Process Control – Sending control signals to field actuators and devices.
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Redundant Control Systems – Dual-redundant configuration for high availability.
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Valve Positioning – Driving control valves with precise current outputs.
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Automation Systems – Output interface for distributed control systems (DCS).
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Process Optimization – Integration with feedback loops for accurate control.
Advantages
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High Output Accuracy for precise control in critical applications.
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Channel Isolation enhances safety and reduces interference.
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HART Protocol Support for digital communication with smart field devices.
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Fast Response with 10 ms update and quick switchover in redundancy.
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Compact Size for easy integration into existing panels.
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Robust Build suitable for harsh industrial environments.
FAQ
Q1: What is the primary function of the AAI543-S03/A4S00?
A1: It converts control system signals into isolated 4–20 mA DC outputs for field devices.
Q2: How many output channels does it have?
A2: It provides 16 isolated output channels.
Q3: Is HART communication supported?
A3: Yes, it supports HART protocol for enhanced device communication.
Q4: What is the allowable load resistance range?
A4: 0 to 750 Ω per channel.
Q5: Can this module be used in redundant configurations?
A5: Yes, it supports dual-redundant operation for reliability.
Q6: What is the accuracy of the output signal?
A6: ±48 μA.
Q7: What is the size and weight of the module?
A7: 107.5 × 32.8 × 130 mm, 0.4 kg.
Q8: What industries use this module?
A8: Oil & gas, chemical processing, power generation, and manufacturing.
Q9: What is the data update period?
A9: 10 milliseconds.
Q10: What type of external connection does it use?
A10: Pressure clamp terminal block.
Related Models (Same Series or Function)
| Model | Function | Output Type | Channels |
|---|---|---|---|
| AAI543-H | Analog Output with HART | 4–20 mA | 16 |
| AAI835-H | Isolated Current I/O with HART | 4–20 mA | 4 In / 4 Out |
| AAI841-H | Non-Isolated Current I/O with HART | 4–20 mA | 8 In / 8 Out |
| AAB842-H | Voltage/Current In, Current Out with HART | 1–5 V / 4–20 mA In, 4–20 mA Out | 8 In / 8 Out |
| AAV544 | Isolated Voltage Output | -10 to +10 V | 16 |
| AAV542 | Non-Isolated Voltage Output | -10 to +10 V | 16 |
Popular Yokogawa Models
| Model | Function | Key Feature |
|---|---|---|
| AAI141-H | Analog Input with HART | 16-channel, 4–20 mA |
| AAI143-H | Isolated Analog Input with HART | 16-channel, 4–20 mA |
| AAI135-H | Isolated Current Input with HART | 8-channel, 4–20 mA |
| AAI841-H | Analog I/O with HART | 8-channel in/out |
| AAT141 | TC/mV Input Module | Thermocouple and millivolt signals |
| AAR181 | RTD Input Module | 12-channel, Pt100 RTD |
