Overview

The Yokogawa ADM55-2 Relay Output Module is designed for digital control applications in distributed control systems (DCS) and programmable logic controllers (PLC). With 16 isolated relay outputs, this module enables precise actuation of field devices across a wide range of voltages and currents. It is ideal for managing on/off control signals for devices such as alarms, motors, valves, and safety interlocks.

Its compact, rack-mounted design allows for seamless integration into Yokogawa control platforms, offering flexibility in various industrial setups. Additionally, the ADM55-2 supports both Form A and Form B relay contact configurations, providing wiring and control logic options to meet different application needs. The module operates reliably in harsh environments, with fast relay response times and low minimum load requirements, making it suitable for industries demanding high-performance and rapid control.

Therefore, the ADM55-2 is widely used in power generation, petrochemical, water treatment, and manufacturing sectors, where robust digital output control is essential.

Technical Data

Typical Applications

• Power Plants: Controls alarms, trip signals, and auxiliary equipment in turbine and generator systems.

• Petrochemical Facilities: Manages solenoids, pumps, and safety interlocks in hazardous process zones.

• Water Treatment Plants: Activates valves, mixers, and emergency shutdown devices.

• Manufacturing Automation: Supports digital output control for conveyors, robotic arms, and packaging lines.

• Building Systems: Interfaces with HVAC, lighting, and fire suppression systems.

For example, in a chemical plant, the ADM55-2 can trigger emergency shutdown valves and activate warning alarms based on process conditions. Its fast relay response time ensures that control commands are executed without delay, contributing to both safety and efficiency.

FAQ

Q1: How many output channels does the ADM55-2 support?
It supports 16 isolated relay output channels.

Q2: What types of relay contacts are available?
The module includes both Form A and Form B relay contact configurations for flexibility.

Q3: What is the maximum output rating?
The ADM55-2 can handle the following outputs:

• 250 V AC @ 1.5 A max

• 125 V DC @ 0.1 A max

• 24 V DC @ 1.5 A max

Q4: Is it suitable for safety-critical applications?
Yes, it is commonly used for alarms, interlocks, and emergency shutdown systems.

Q5: What industries use this module?
Industries that benefit from this module include power generation, petrochemical, water treatment, and manufacturing.