Yokogawa AAI543-S50/K4A00 Analog Output Module

Product Overview

The Yokogawa AAI543-S50/K4A00 serves as a high-density analog output interface for the CENTUM VP Distributed Control System (DCS). This module converts digital control commands into 16 channels of isolated 4 to 20 mA signals to drive final control elements such as control valves, actuators, and speed controllers. By utilizing a dedicated KS cable interface adapter, this module streamlines cabinet marshalling and ensures high-integrity signal transmission. We provide this unit as 100% Brand New and Original, ensuring your process loops operate with factory-certified precision.

Part Number Breakdown

Technical Specifications

• Output Channels: 16 channels, fully isolated.

• Output Signal: 4 to 20 mA DC.

• Accuracy: ±48 µA (±0.3% of span).

• Data Update Period: 10 ms (High-speed control response).

• Allowable Load Resistance: 0 to 750 Ω.

• Withstanding Voltage: 1500 V AC between output and system for 1 minute.

• Circuit-Open Detection: Triggers alarm at current levels less than 0.65 mA.

• Interface: KS Cable Interface Adapter for AEA4D Terminal Board connection.

• Weight: 0.4 kg.

Engineering Advantages

• Simplified Marshalling with KS Adapter: The integrated /K4A00 interface adapter replaces traditional pressure clamp wiring with a multi-core KS cable connection. This design allows you to connect 16 channels to an AEA4D terminal board in seconds, drastically reducing wiring errors and commissioning time.

• Superior Loop Isolation: The module provides 1500 V AC galvanic isolation between the field-side outputs and the system backplane. This protects the core DCS processor from field-side surges and ground loops, ensuring that an electrical fault in the plant remains localized to the field loop.

• Optimized for High-Density Racks: By packing 16 isolated channels into a single slot, the AAI543-S50 reduces the number of I/O nodes required. This compact footprint allows engineers to reduce the total number of cabinets and lowers the overall hardware investment per loop.

• Fast Process Recovery: The 10 ms data update cycle provides the rapid response necessary for critical flow and pressure control loops. This high-speed performance ensures the final control element reacts instantly to setpoint changes, maintaining process stability in dynamic environments.

FAQs

• Does the AAI543-S50 support HART communication?

  No. The "S" suffix designates this as a standard analog output module. If your application requires remote valve diagnostics or HART communication, you must select the AAI543-H series.

• Can I use this module in a redundant configuration?

  Yes. The "5" suffix indicates that this module supports standard switch-over response for redundant I/O pairs. When installed in a redundant nest, the standby module takes over control seamlessly if the active unit detects an internal fault.

• What terminal board is compatible with the /K4A00 option?

  The /K4A00 adapter (Model ATK4A-00) is specifically designed to interface with the Yokogawa AEA4D Terminal Board using a KS1 or KS2 cable.

• Is the unit shipped in factory-original packaging?

  We guarantee the AAI543-S50/K4A00 is 100% Brand New. It arrives in the original Yokogawa factory box, featuring the original serial numbers and factory-sealed protective materials.