Yokogawa ARM55W Mechanical Relay Wet Contact Output Board

Overview

The Yokogawa ARM55W is an advanced mechanical relay terminal board designed for industrial automation applications. This board effectively interfaces digital output modules with field devices, converting electronic signals into reliable mechanical relay contacts. With 32 contact points, it guarantees flexibility and durability. It supports both single and dual-redundant configurations, ensuring seamless operation in mission-critical environments. Furthermore, it offers M4 screw terminals for easy installation and integration into various industrial systems.

This product is ideal for applications requiring high-reliability switching and flexibility. In addition, the ARM55W accommodates various field devices and integrates easily with modules such as ADV551 and ADV561. As a result, it provides a comprehensive solution for industrial automation systems that demand continuous performance.

Key Features

Flexible Relay Configuration: The ARM55W supports Normally Open (NO) and Normally Closed (NC) relay contacts, providing versatility for various industrial applications. Whether the system requires flexibility in its configuration or needs reliability in switching, this product delivers excellent performance.
High Load Capacity: Each contact point supports up to 0.6 A at 250 V AC and 30 V DC, ensuring dependable performance in heavy-duty applications. Additionally, the relay handles 125 V DC up to 0.1 A per point, making it versatile in handling different industrial demands.
Dual-Redundancy Support: The ARM55W is equipped for dual-redundant configurations, providing extra reliability in systems where uninterrupted operation is a must. In the event of a failure, the redundant system takes over seamlessly to maintain system stability.
Galvanic Isolation: This board offers 2 kV AC isolation between the field device terminals and the case, protecting sensitive components from voltage spikes. Moreover, its 500 V AC isolation between the power terminals and the case ensures safe operation in demanding environments.
Compact and Robust Design: With dimensions of 482.6 mm x 132.5 mm (3U) and a weight of just 2.2 kg, the ARM55W fits standard 19-inch racks and occupies minimal space while offering powerful capabilities.

Technical Specifications

Parameter	Specification
Model Number	ARM55W
Type	Mechanical Relay Wet Contact Output Board
Contact Points	32 points
Relay Type	Wet Contact (Normally Open/Normally Closed)
Terminals	M4 screws for field device connection
Maximum Load	250 V AC: 0.6 A per point
	30 V DC: 0.6 A per point
	125 V DC: 0.1 A per point
Minimum Load	5 V, 10 mA
Power Supply Voltage	24 V DC, Max. 0.65 A
Power Supply for Field Devices	250 V AC: Max. 9.6 A
	30 V DC: Max. 9.6 A
	125 V DC: Max. 1.6 A
Insulation Resistance	At least 10 MΩ (500 V DC)
Withstanding Voltage	2 kV (field device terminals to case)
	500 V (24 V power terminals to case)
	2 kV (24 V power terminals to field device terminals)
Operating Temperature	0 to 50 °C
Operating Humidity	10% to 90% RH
Size	482.6 mm x 132.5 mm (3U)
Weight	2.2 kg
Compatible Modules	ADV551 (DO: 32-point), ADV561 (DO: 64-point)
Signal Cables	AKB331 (for 32-point), AKB337 (for 64-point)
Standards	CE Marking, CSA, C-Tick, KC Marking, EMC standards

Applications

The Yokogawa ARM55W is well-suited for use in industrial control systems where high reliability and flexibility are required. Its applications include:

Heavy-duty Process Control: The ARM55W can handle complex field devices, converting electronic signals to mechanical relay contacts reliably.
Redundant Control Systems: Its dual-redundancy support ensures continuous operation in mission-critical systems.
Automated Systems: Its compatibility with both ADV551 and ADV561 modules makes it suitable for integrating into sophisticated automation systems requiring robust and dependable switching.

Conclusion

In conclusion, the Yokogawa ARM55W mechanical relay output board is a top-tier solution for industrial automation. With its versatile wet contact output, high load capacity, and dual-redundant support, it ensures uninterrupted performance in demanding environments. Additionally, its compact design and high insulation resistance make it a reliable choice for critical control systems.