AAI543-H00/K4A00 | Yokogawa | Analog Output Module

Product Overview

The Yokogawa AAI543-H00/K4A00 drives 16 channels of 4 to 20 mA signals to field devices such as control valves and actuators. This module facilitates advanced asset management by supporting digital communication via the HART protocol. We provide this unit as 100% Brand New and Original equipment, ensuring seamless integration into your CENTUM VP distributed control system.

Part Number Breakdown

• AAI543: 16-Channel Analog Output Module (4 to 20 mA).

• -H: Integrated HART digital communication protocol.

• 0: Standard type (Note: "0" indicates standard switch-over response with explosion protection).

• 0: Basic type specification.

• K4A00: Factory-installed KS Cable Interface Adapter for AEA4D Terminal Board connection.

Technical Specifications

• Output Channels: 16 isolated channels.

• Signal Range: 4 to 20 mA DC.

• Update Period: 10 ms for rapid control loop response.

• Load Resistance: Supports loads from 0 to 750 Ω.

• Dielectric Strength: 1500 V AC isolation between output and system circuits.

• Diagnostic Feature: Circuit-open detection activates when current drops below 0.65 mA.

• Power Draw: 230 mA at 5 V DC and 540 mA at 24 V DC.

Engineering Advantages

The AAI543-H00/K4A00 streamlines complex automation tasks by allowing both analog control and digital diagnostics over the same pair of wires. The 16-channel high-density configuration maximizes I/O rack efficiency, reducing the physical footprint of your control cabinets. Its robust isolation protects the system backplane from field surges, while the integrated K4A00 adapter provides a standardized interface for AEA4D terminal boards. This setup eliminates the risks of manual wiring errors and accelerates the commissioning of final control elements.

FAQs

• What is the primary function of the HART protocol in this module?The HART protocol allows the CENTUM VP system to overlay digital information on the 4-20 mA signal. This enables you to perform remote device configuration, monitor valve status, and access multi-variable data without extra wiring.

• How does the circuit-open detection work?The module constantly monitors the output loop. If it detects a current flow below 0.65 mA, it flags a "Circuit Open" error to the system, helping maintenance teams pinpoint broken wires or failed actuators instantly.

• Can I use this module for redundant configurations?Yes. The AAI543 series supports dual-redundant operation. In this setup, two modules work in parallel to ensure that a hardware failure does not interrupt the control signal to your field devices.

• Does the K4A00 adapter come pre-installed?Yes, the K4A00 designation confirms that the module includes the KS Cable Interface Adapter (Model ATK4A-00) already mounted, allowing for immediate connection to your terminal boards using KS1 cables