Yokogawa ARM55C / ARM55C-000 Relay Output Board

Overview

The Yokogawa ARM55C and ARM55C-000 are advanced 32-point mechanical relay output boards designed for use with the CENTUM VP distributed control system. These boards amplify input signals from field devices and provide reliable outputs via dry-contact relays. Each channel supports either Normally Open (NO) or Normally Closed (NC) configurations, offering flexibility for diverse industrial control applications. The ARM55C is built to operate in demanding environments, ensuring seamless integration and dependable performance in process automation systems.

Key Features

32 Output Channels: The ARM55C supports 32 dry-contact relay outputs, providing ample capacity for large-scale control systems.
Flexible Relay Configuration: Each channel allows you to choose between Normally Open (NO) or Normally Closed (NC) configurations to meet specific control requirements.
High Load Capacity: This module can handle up to 250 V AC at 2A, 30 V DC at 2A, and 125 V DC at 0.1A, making it suitable for various heavy-duty industrial applications.
Low Power Consumption: The ARM55C requires only 24 V DC with a maximum current consumption of 0.85 A, ensuring energy efficiency without compromising performance.
Robust Insulation and Dielectric Strength: With insulation resistance greater than 10 MΩ at 500 V DC and a dielectric strength of 2 kV, this module provides exceptional protection for your system.
Easy Integration: The ARM55C mounts easily on a standard 19-inch rack, using M3.5 screws to ensure secure installation.

Technical Specifications

Parameter	Specification
Model Number	ARM55C-000
Type	Mechanical Relay Output Board
Output Channels	32 dry-contact relays, NO or NC selectable
Relay Type	Mechanical relay
Maximum Load per Channel	250 V AC @ 2A, 30 V DC @ 2A, 125 V DC @ 0.1 A
Minimum Load per Channel	5 V DC @ 10 mA
Power Supply	24 V DC, max 0.85 A
Control Voltage	5 V DC, 10 mA
Insulation Resistance	>10 MΩ @ 500 V DC
Dielectric Strength	2 kV between field terminals and case; 500 V between power terminals and case
Mounting	19-inch rack, M3.5 screws
Weight	2.2 kg
Operating Temperature	0 to 50°C
Humidity Range	10% to 90% RH, non-condensing

Applications

The Yokogawa ARM55C and ARM55C-000 mechanical relay output boards are perfect for:

Industrial Control Systems: Ideal for controlling various field devices in process automation systems.
Automation Systems: These boards can easily integrate with the CENTUM VP distributed control system.
Power and Signal Control: The versatile configuration options make these boards suitable for power switching, signal processing, and other industrial control tasks.

Conclusion

The Yokogawa ARM55C and ARM55C-000 offer exceptional flexibility and reliability for industrial control applications. With 32 output channels, a variety of relay configurations, and high load handling capabilities, these modules provide a comprehensive solution for demanding automation environments. Whether you’re working with AC or DC systems, the ARM55C delivers reliable and energy-efficient performance.