Yokogawa AAI543-H50 / K4A00 16-Channel Isolated Analog Output Module

Product Description

The AAI543-H50 / K4A00 analog output module from Yokogawa is designed for distributed control systems requiring precise current signal transmission. This model provides 16 isolated output channels operating in the 4–20 mA DC range, ensuring stable and accurate control of actuators, valves, and other field devices. The H50 suffix indicates HART communication capability, redundancy support, and basic hardware type. The K4A00 option adds compatibility with the KS cable interface adapter (Model: ATK4A-00), enabling connection to the AEA4D terminal board.

Technical Specifications

• Manufacturer: Yokogawa

• Model Number: AAI543-H50 / K4A00

• Type: Isolated Analog Output Module

• Channels: 16 isolated output channels

• Output Signal Range: 4–20 mA DC

• Digital Communication: HART protocol supported

• Redundancy: Standard switch-over response supported

• Withstanding Voltage: 1500 V AC between output and system (1 minute)

• Allowable Load Resistance: 0–750 Ω

• Circuit-Open Detection Threshold: <0.65 mA

• Accuracy: ±48 µA

• Data Update Period: 10 ms

• Temperature Drift: ±16 µA per 10 °C change

• Current Consumption: 230 mA (5 V DC), 540 mA (24 V DC)

• External Connections: KS cable interface adapter (ATK4A-00), pressure clamp terminal, MIL connector cable

• Dimensions (W × H × D): 170 × 120 × 45 mm

• Weight: 0.4 kg (Shipping weight: 1.5 kg)

Suffix Code Breakdown

• H: HART communication support

• 5: Standard switch-over redundancy, no explosion protection

• 0: Basic hardware type

• K4A00: KS cable interface adapter option for AEA4D terminal board

Key Features

• Isolated Channels: Ensures reliable signal integrity

• HART Communication: Enables diagnostics and remote configuration

• Redundancy Support: Fail-safe operation in critical systems

• Flexible Connectivity: KS cable adapter option for terminal board integration

• High Accuracy: ±48 µA precision for stable output signals

Application Scenarios

• Chemical and petrochemical process control

• Power generation and turbine monitoring

• Water treatment and distribution automation

• Industrial machinery requiring precise analog actuation

FAQ

Q: How many channels does the AAI543-H50 / K4A00 provide?  A: It supports 16 isolated analog output channels.

Q: What does the suffix “K4A00” indicate?  A: It specifies compatibility with the KS cable interface adapter (ATK4A-00) for connecting to the AEA4D terminal board.

Q: Is redundancy supported?  A: Yes, the module includes standard switch-over response in redundant setups.