Overview
AAI543-H00/K4A00 Yokogawa Analog Output Module
The AAI543-H00/K4A00 is a 16-channel isolated analog output card designed for Yokogawa CENTUM VP DCS platforms. It delivers precise 4 to 20 mA signals to field actuators and control valves with a rapid 10 ms update rate.
Equipped with digital communication via the HART protocol, this module enables continuous field instrument diagnostics and remote parameter tuning. The `/K4A00` option integrates the ATK4A-00 KS Cable Interface Adapter for direct connection to AEA4D terminal boards.
Configuration Breakdown
Model Suffix Code & Option Architecture
- AAI543 — Analog Output Module (16-Channel, 4 to 20 mA, Isolated Output)
- -H — Digital Communication Specification: HART Protocol Enabled
- 0 — Redundancy Response: Standard Switch-Over Response with Explosion Protection
- 0 — System Type Designation: Basic Hardware Configuration
- /K4A00 — Interface Option: Includes ATK4A-00 KS Cable Interface Adapter (For AEA4D Terminal Board)
- -H — Digital Communication Specification: HART Protocol Enabled
Technical Parameters
Performance & Signal Specifications
| Parameter Category | Technical Specification |
|---|---|
| Brand & System Platform | Yokogawa CENTUM VP System |
| Part Number & Suffix | AAI543-H00/K4A00 |
| Number of Channels | 16 channels, fully isolated |
| Output Signal Range | 4 to 20 mA DC |
| HART Communication | Supported on all 16 channels |
| Allowable Load Resistance | 0 to 750 Ω |
| Output Accuracy | ±48 µA |
| Data Update Cycle | 10 ms |
| Circuit-Open Threshold | Detection triggered at less than 0.65 mA |
| Thermal Drift Rate | ±16 µA / 10 °C ambient variance |
| Dielectric Voltage Isolation | 1500 V AC between output and system for 1 minute |
| Current Consumption | 230 mA (5 V DC), 540 mA (24 V DC) |
| External Connections | Pressure clamp terminals, MIL connectors, KS1 cables |
| Module Net Weight | 0.4 kg |
System Diagnostics & Applications
Target Equipment & Diagnostic Capabilities
- Control valve positioners, variable frequency drives, and current-to-pressure converters.
- Continuous process loops in oil refineries, chemical plants, and power generation units.
- Automatic circuit-open detection triggers alarms when loop current drops below 0.65 mA.
- Pass-through HART data enables real-time diagnostic reporting from smart field positioners.
- Bumpless switch-over capability maintains output stability during redundant module failover.
- 1500 V AC dielectric rating shields internal system electronics from ground loop surges.
Oiltech Controls Limited’s Insight
Engineering & Installation Guidance
- The AAI543-H00/K4A00 provides reliable valve control due to its 750 Ω drive capacity and 10 ms update cycle.
- Incorporating the `/K4A00` adapter simplifies cabinet assembly by enabling fast KS cable coupling to AEA4D boards.
- Open-circuit sensing under 0.65 mA alerts operators immediately to field cable breaks or disconnected coils.
- Pass-through HART communication eliminates the need for external multiplexers during instrument maintenance.
Fulfillment, Shipping & Warranty
Procurement Terms
- Backed by a full 12-month replacement warranty.
- Global priority freight options available through FedEx, UPS, and DHL.
- Direct stock inquiries can be sent to info@oiltechcontrols.com or via WhatsApp at +86 158 8020 0923.
Frequently Asked Questions (FAQ)
Technical Selection & Maintenance
Q: How does the AAI543-H00/K4A00 handle field wire disconnection?
A: Its open-circuit detection feature recognizes loop current under 0.65 mA and flags an alarm in the DCS software.
Q: What is the benefit of the `/K4A00` adapter suffix?
A: The adapter allows quick connection to AEA4D terminal blocks using standardized KS interface cabling.
Q: Can HART parameters be adjusted while the loop is running actively?
A: Yes, pass-through HART protocol support allows real-time configuration without disrupting the 4-20 mA control signal.
Q: How do I verify loop power capacity for long cable runs?
A: Ensure total loop resistance, including field device load and wire impedance, does not exceed 750 Ω.
Q: Who can I contact for urgent pricing or technical verification?
A: Reach Oiltech Controls Limited via Email at info@oiltechcontrols.com or message us on WhatsApp at +86 158 8020 0923.
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