Overview
Configured for isolated 4-20 mA signal output execution in Yokogawa CENTUM VP and CENTUM CS 3000 Field Control Station systems, the Yokogawa AAI543-H00/K4A00 (AAI543 Analog Output Module) provides direct electrical control output through 16 isolated current channels.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AAI543-H00/K4A00 |
| Brand | Yokogawa |
| Origin | Japan |
| Module Type | Analog Output Module, 16-channel isolated current output |
| System Application | Yokogawa CENTUM VP / CENTUM CS 3000 DCS |
| Output Channels | 16 isolated channels |
| Output Signal | 4-20 mA DC |
| Output Isolation | Between output and system: 1500 VAC for 1 minute |
| Allowable Load Resistance | 0 to 750 ohm |
| Circuit Open Detection | Less than 0.65 mA |
| Accuracy | ±48 uA |
| Data Update Period | 10 ms |
| Ambient Temperature Drift | ±16 uA / 10 deg C |
| Maximum Current Consumption | 230 mA at 5 VDC, 540 mA at 24 VDC |
| Weight | Approx. 0.40 kg |
| External Connection | Pressure clamp terminal, MIL connector cable, dedicated cable (S1) |
| HART Communication | Available |
| Redundant Configuration | Supports dual-redundant configuration |
| Redundant Response | Standard switch-over or fast switch-over options |
4-20 mA HART Loop Protocol and Channel Isolation
The AAI543-H00/K4A00 applies Yokogawa DCS analog output technology for process instrument control loops. It generates 16 independent 4-20 mA output signals and maintains electrical isolation between field output circuits and the system side.
Furthermore, the module supports HART communication, which allows digital communication over compatible current loops. The isolated channel design reduces signal interaction between output points and supports stable analog control execution in CENTUM VP and CENTUM CS 3000 environments.
The module supports dual-redundant operation with selectable switch-over performance. Therefore, users can configure standard or fast redundant response modes according to system requirements.
Frequently Asked Questions
Q: Does the AAI543-H00/K4A00 support redundant operation?
A: Yes. The module supports dual-redundant configuration with standard switch-over and fast switch-over response options depending on the suffix configuration.
Q: What field signals can the module output?
A: The module outputs 16 isolated 4-20 mA DC current signals for analog control applications.
Q: Does this module provide HART communication capability?
A: Yes. The AAI543-H00/K4A00 supports HART communication through compatible analog output channels.
Field Installation Guidelines
- Install the module in the designated Yokogawa Field Control Unit or I/O node location according to system hardware documentation.
- Verify terminal wiring before applying power to prevent incorrect current loop connections.
- Use shielded signal cables for analog current loops where field electromagnetic interference may affect signal quality.
- Connect cable shields according to the site grounding standard to reduce noise coupling.
- Separate analog output wiring from high-voltage power cables and switching circuits.
- Confirm output polarity and loop resistance before commissioning the 4-20 mA field circuit.
- Check redundant configuration settings before system startup when dual-redundant operation is required.
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