Yokogawa | AAI141-S00/K4A00 | 16-Channel Non-Isolated Analog Input Module

Technical Overview

The AAI141-S00/K4A00 is a high-density current input module designed for integration within the Yokogawa CENTUM VP control architecture. This specific configuration features 16 analog input channels supporting standard 4 to 20 mA DC signals. As a non-isolated module, it utilizes a common ground reference, making it an efficient choice for high-density I/O nests where field signals share a unified potential.

This model is equipped with the K4A00 interface, which includes the ATK4A-00 KS cable adapter. This allows for rapid, secure connection to terminal boards via dedicated system cabling, significantly reducing manual wiring time and minimizing potential connection errors during commissioning.

Detailed Specifications

• Model Identification: AAI141-S00/K4A00

• Input Configuration: 16 channels, non-isolated (Common ground)

• Signal Range: 4 to 20 mA DC

• Interface Adapter: ATK4A-00 (KS Cable Interface)

• Measurement Accuracy: ±16 µA (High-resolution sensing)

• Data Refresh Cycle: 10 ms (High-speed update)

• Maximum Allowable Input: 27 mA DC

• Input Resistance (Power ON): Approximately 250 Ω

• Transmitter Power Supply: 14.8 V or higher (at 20 mA) to 26.4 V or less (at 0 mA)

• Module Type: Standard Basic Type (S00)

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

• Power Consumption: 230 mA (at 5 V DC); 540 mA (at 24 V DC)

• Physical Weight: Approximately 0.2 kg (Base module)

Interface and Connectivity

The K4A00 designation indicates that the module is pre-configured with a KS cable interface adapter (ATK4A-00). This setup is ideal for modular cabinet designs where the I/O module in the field control station (FCS) must connect to remote terminal blocks. By using the KS1 cable system, users benefit from a robust, plug-and-play communication link that supports long-term signal integrity and simplifies module replacement.

Frequently Asked Questions

• What is the primary application for the AAI141-S00/K4A00?

  It is primarily used for monitoring 16 individual 4-20 mA process variables (such as temperature, pressure, or flow) where electrical isolation between channels is not required.

• Does this module support HART communication?

  No. The "S" (Standard) prefix denotes a basic analog module. For HART digital diagnostics, the "H" prefix variant (e.g., AAI141-H00) would be required.

• Is the KS Cable Adapter removable?

  The module is supplied with the ATK4A-00 adapter attached, specifically for use with KS-style system cabling.