Yokogawa AAI141-H00 Analog Input Module

Product Description

Configured for 4-20 mA DC process signal acquisition in a Yokogawa CENTUM control system, the Yokogawa AAI141-H00 (AAI141 analog input module) provides 16 non-isolated analog input channels. The module accepts 2-wire and 4-wire transmitter signals and updates input data at a 10 ms period.

Suffix Breakdown & Model Matrix

Hardware Specifications

4-20 mA Input and DCS Signal Interface

The AAI141 receives 4-20 mA DC signals and converts the input current into digital process data for the control system. Each module provides 16 non-isolated input channels.

The input resistance changes with loop current. The supplied data specifies 400 ohm at 20 mA and 1000 ohm at 4 mA with power ON. The allowable input current is 27 mA.

The module supports both 2-wire and 4-wire transmitter configurations through the applicable channel configuration. Therefore, wiring must match the transmitter arrangement and assigned input channel.

The supplied information does not establish HART functionality for the specific AAI141-H00 variant. The H00 designation should therefore not be interpreted as HART support without confirmation from the applicable Yokogawa ordering documentation.

Frequently Asked Questions

Q: How many analog input channels does the Yokogawa AAI141-H00 provide?
A: The module provides 16 non-isolated analog input channels.

Q: What signal range does the AAI141-H00 accept?
A: It accepts 4-20 mA DC signals from compatible 2-wire or 4-wire transmitter configurations.

Q: What are the specified update and step response times?
A: The data update period is 10 ms, while the specified step response time is 100 ms.

Field Installation Guidelines

Install the Yokogawa AAI141-H00 only in the compatible Yokogawa I/O configuration. Verify the module identity and terminal assignment before connecting field wiring.

Route 4-20 mA signal cables separately from high-voltage and high-current conductors where practical. Avoid unnecessary parallel routing with power cables to limit electrical interference.

Because the input channels are non-isolated, verify the complete transmitter loop and grounding arrangement before energizing the circuit. Do not assume channel-to-channel galvanic isolation.

For 2-wire transmitters, verify loop polarity and transmitter power requirements. For 4-wire transmitters, verify the signal wiring separately from the transmitter power wiring.

Terminate cable shields according to the applicable Yokogawa installation standard. Before commissioning, check channel assignment, polarity, loop continuity, transmitter configuration, and signal integrity.

Other Attributes

• Country of Origin: Japan/Singapore
• Lead Time: In Stock, 2 Working Days

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