YOKOGAWA AAM50 Current Output Module

Product Descripution

The Yokogawa AAM50 is a Current Output Module designed for industrial automation within Yokogawa’s distributed control systems (DCS), such as CENTUM CS, CENTUM CS 3000, and CENTUM VP. It is primarily used to transmit precise analog signals from process controllers to field devices such as control valves, actuators, and indicators.

Specifications

Upgrade items

The figure below shows an image how the existing I/O module is upgraded by the channel. Connection specifications of field wiring (wiring connection types of A, B, and C terminals assigned by the type of signals) are the same before and after upgrading. The A2SAM505 output adaptor for current/voltage output modules can be configured in dual redundant in the same way as AAM51. The short bar used for M4 screw terminal used for dual-redundant configuration, the same product as the existing system can be used.

Before upgrade	After upgrade

YOKOGAWA AAM50 FAQ

Q1: What distinguishes the YOKOGAWA AAM50 in terms of analog current output precision for mission-critical industrial control applications?
A: The YOKOGAWA AAM50 delivers a highly stable 4–20 mA DC analog output with an accuracy of ±48 µA. Its fast 20 ms data update period and 100 ms step response make it well suited for demanding DCS environments requiring precise and responsive signal transmission.

Q2: How does the YOKOGAWA AAM50 maintain signal integrity when connected to varying field load conditions?
A: The YOKOGAWA AAM50 supports an allowable load resistance of 0–750 Ω and provides an output resistance of 500 kΩ or higher. It also limits load-induced deviation to ±16 µA for every 75 Ω change, ensuring consistent analog output performance.

Q3: Why is the YOKOGAWA AAM50 considered a reliable solution for electrically isolated analog output systems?
A: The YOKOGAWA AAM50 features channel-to-system signal insulation and withstands 1500 V AC for one minute, minimizing electrical interference and improving operational reliability in industrial automation systems.

Q4: Which configuration capabilities make the YOKOGAWA AAM50 adaptable to different process control requirements?
A: The YOKOGAWA AAM50 allows the output signal type and output range to be configured through software, eliminating manual hardware adjustments and enabling rapid adaptation to evolving process requirements.

Q5: How is the YOKOGAWA AAM50 installed and integrated into a control system architecture?
A: The YOKOGAWA AAM50 is designed for installation in an I/O Module Nest and connects to the terminal block using M4 screws. It operates from a 5.0 V DC supply with a maximum current consumption of 250 mA, making it easy to integrate into Yokogawa control systems while maintaining dependable performance.

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