Yokogawa AAM11 Current/Voltage Input Module

Description

The Yokogawa AAM11 operates as a Current/Voltage Input Module designed for acquisition of DC voltage and current signals, with auxiliary voltage output capability and software‑defined input range settings.

Hardware Specifications

• Model: AAM11

• Brand: Yokogawa

• Origin: Japan

• Weight: Not specified

• Dimensions: Not specified

• Operating Temp: Not specified

• Power Consumption: ≤300 mA at 5.0 V DC

• Input Signal: 0 to 10 V DC

• Input Resistance: 1 MΩ (100 kΩ at power‑down)

• Allowable Input Voltage/Current: -10 to 30 V DC

• Transmitter Power Supply: 25.0 to 25.5 V DC (≤60 mA DC)

• Auxiliary Voltage Output: 1 to 5 V DC; ≤1 Ω output resistance; ≥10 kΩ load resistance

• Signal Grounding: Shared with system

• Square Root Extraction: Available by specification

• Accuracy Rating: Voltage input ±4 mV; Current input ±16 µA; Auxiliary voltage output ±12 mV

• Effect of Ambient Change: 10 deg C variation → Voltage input ±4 mV and ±0.15 % of value; Current input ±32 µA; Auxiliary voltage output ±24 mV

• Data Update Period: 50 ms

• Signal Insulation: Input signals insulated between systems

• Withstanding Voltage: 1500 V AC/min

• Installation: I/O Module Nest

• Wiring: M4 screw terminal connection

• Input Signal Settings: Configurable via software

4-20 mA HART Loop Protocol

The AAM11 supports integration with 4-20 mA HART loop protocol, enabling deterministic current and voltage signal acquisition. Input signals are insulated between systems, with 1500 V AC/min withstand capability. Auxiliary voltage output is designed for stable reference supply, with shared grounding requiring strict adherence to system grounding practices.

Frequently Asked Questions (FAQ)

Q: Can the AAM11 module be hot-swapped? A: Hot-swap capability is not specified. It is recommended to power down the I/O nest before replacement.

Q: How is square root extraction configured? A: Square root extraction is enabled through software specification, allowing direct processing of flow-related signals.

Q: What precautions are required for auxiliary voltage output wiring? A: Ensure load resistance ≥10 kΩ and maintain single-point grounding to prevent interference.

Field Installation Guidelines

• Install the module securely into the I/O Module Nest.

• Connect wiring to terminal blocks using M4 screws with proper torque.

• Maintain shield grounding at one point to avoid ground loops.

• Separate signal wiring from high-voltage cabling to minimize interference.

• Configure input signal ranges via software before commissioning.