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Yokogawa AAV144-S50 16-Channel Isolated Voltage Input Module Item NO.: 2932308

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Product Name	Yokogawa AAV144-S50 16-Channel Isolated Voltage Input Module
Item NO.	2932308
Weight	0.1 kg = 0.2205 lb = 3.5274 oz
Category	YOKOGAWA
Brand	YOKOGAWA
Creation Time	2026-11-13

YokogawaISOLATED VOLTAGE AI

Yokogawa AAV144-S5016-Channel Isolated Voltage Input Module

Product Information

Yokogawa AAV144-S50 is a 16-channel isolated voltage input module for CENTUM VP field I/O. It accepts either 1 to 5 V DC or -10 to 10 V DC input service, with the selected signal range applied together across channels 1 through 16.

The S50 suffix of AAV144-S50 identifies the standard type, non-explosion-protected construction and basic environmental specification. Each channel is isolated, the data update period is 10 ms, and the module permits up to ±30 V at the input within the documented electrical conditions.

AAV144-S50 converts the selected voltage range into process data for the field control station while preserving channel-to-channel and channel-to-system separation. Because one range selection applies across all 16 channels, the connected signal sources must belong to the same voltage-range group.

Yokogawa AAV144-S50 isolated voltage input specifications from the official manual

Product Specifications

Specification	AAV144-S50
Brand	Yokogawa
Product Name	16-Channel Isolated Voltage Input Module
Country	Not specified
Input channels	16 isolated channels
Selectable input ranges	1 to 5 V DC or -10 to 10 V DC
Range assignment	Selected together for channels 1 to 16
Allowable input voltage	±30 V
Input resistance, power on	1 MΩ
Input resistance, power off	200 kΩ
Accuracy at 1 to 5 V	±4 mV
Accuracy at -10 to 10 V	±20 mV
Data update period	10 ms
Withstanding voltage	1500 V AC for 1 minute
Maximum current consumption	500 mA at 5 V DC
Approximate weight	0.2 kg

Operating Characteristics

AAV144-S50 measures isolated voltage channels with one module-wide range choice, making range consistency as important as individual loop continuity.

Sixteen isolated inputs

Each voltage channel is isolated from the system and neighboring channels, limiting the spread of field reference differences.

Two supported ranges

The module supports 1 to 5 V or -10 to 10 V service; the selected range applies collectively rather than as a different choice on every channel.

Defined update and accuracy

A 10 ms update period and range-specific accuracy figures define the module contribution to the measurement path.

Configuration and Programming

Engineering AAV144-S50 begins with the correct module-wide voltage range and then applies channel scaling, alarm limits and tag identity.

Select the common range

Confirm all connected channels belong to the selected 1 to 5 V or -10 to 10 V range before activating the module.

Scale engineering units

Convert each channel voltage to its process unit using the transmitter or signal-source record, not by copying a neighboring tag scale.

Set credible alarms

Apply underrange, overrange and bad-input handling that distinguishes a real process excursion from an open, shorted or incorrectly ranged signal.

Questions & Answers

Q01Can AAV144-S50 mix 1 to 5 V and -10 to 10 V devices on the same module?

AAV144-S50 selects the input range together for channels 1 through 16, so mixed ranges require a different module allocation or external signal arrangement.

Q02Why must ±30 V not be treated as the normal AAV144-S50 measurement range?

The ±30 V value for AAV144-S50 is the allowable input limit, not the configured measurement range. Normal engineering must use 1 to 5 V or -10 to 10 V as documented.

Q03Why does AAV144-S50 show incorrect values on every channel after a project change?

For AAV144-S50, check the module-wide range selection first. Changing between 1 to 5 V and -10 to 10 V affects all 16 channels and can make otherwise correct wiring appear wrong.

Q04What does a stable zero-like value mean on one AAV144-S50 channel?

On AAV144-S50, verify terminal voltage with a meter, channel scaling, cable continuity and the field-source reference. Isolation means a single dead channel often points to its own loop rather than the shared module.

Q05What should be included in an AAV144-S50 replacement handover?

Record AAV144-S50, slot, selected range, channel scaling, terminal interface and pre-change voltage readings so the new module can be checked against the original configuration.

Q06How should AAV144-S50 be distinguished from similarly shaped current-input modules?

Use the full AAV144-S50 label and project record. The enclosure family is shared, while the AAV144 electrical function is isolated voltage input.

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