Yokogawa ADM55-2 PLC Module

Product Overview

The Yokogawa ADM55-2 is a specialized relay output module designed for integration into Yokogawa's FCN (Field Control Node) and FCJ series programmable logic controller (PLC) systems. This module functions as a critical interface between the digital control logic and physical field devices, utilizing electromechanical relays to switch loads safely and reliably.

Engineered for robust machine control applications, the ADM55-2 provides galvanic isolation between the control circuitry and the field side. Its compact, rack-mounted design allows it to be installed directly into a relay I/O module nest, facilitating easy maintenance and system expansion in industrial automation panels.

Key Features & Benefits

• Versatile Load Switching: Capable of switching both AC and DC loads, making it suitable for a wide range of industrial actuators, indicators, and contactors.

• High Isolation: Offers robust insulation resistance (≥10 MΩ) and high withstanding voltage (1.5 kV), protecting the sensitive PLC logic from field-side electrical noise and surges.

• Fast Response: Features a relay operation and return time of 10 ms or less, ensuring timely control loop execution.

• Secure Wiring: Field connections are made via M4 screws on the relay I/O nest, ensuring secure and vibration-resistant wiring.

• Fail-Safe Design: The relay output format (A-contact and B-contact) allows for flexible logic configuration (Normally Open/Normally Closed) to suit specific safety requirements.

Technical Specifications

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Application Scenarios

The Yokogawa ADM55-2 is widely used in process automation and machine control systems where reliable switching of moderate power loads is required. Typical applications include:

• Factory Automation: Controlling solenoid valves, small motors, and pilot lights.

• Process Control: Interfacing with alarm horns, status indicators, and auxiliary relays.

• Safety Systems: Implementing hard-wired safety interlocks using the relay's physical isolation.