Product Overview

The Yokogawa ARM15A-000 is a high-density signal conditioning interface designed for Centum VP and legacy Yokogawa DCS systems. It handles 32 channels of dry contact inputs, bridging the gap between field-side mechanical switches and the system's digital logic. With 1.5 kV galvanic isolation and dedicated terminal blocks, the ARM15A-000 safeguards sensitive control electronics from field-induced electrical noise and voltage spikes.

Technical Specifications

Engineering Advantages

• Robust Signal Isolation: The module uses high-grade mechanical relays to ensure complete electrical separation between field devices and the control system, preventing ground loops and transient interference.

• High-Density Integration: Supporting 32 inputs within a compact 3U frame, it reduces the cabinet footprint and simplifies the wiring of large-scale switchgear or pushbutton arrays.

• Simplified Maintenance: The M4 screw terminal design ensures secure physical connections in high-vibration environments, allowing technicians to perform loop tests and troubleshooting directly at the board without disconnecting system cables.

• Dual-Line Power Redundancy: The circuit architecture supports dual-line power distribution (per 16 points), increasing system availability for critical safety and monitoring loops.

FAQs

• Is this board supplied as 100% Brand New?
  Yes, we supply only 100% Brand New, original Yokogawa ARM15A-000 units in factory-sealed packaging to ensure maximum lifespan and compliance with plant safety standards.

• Can I use the ARM15A-000 with non-Yokogawa systems?
  Yes, while optimized for Centum VP, the ARM15A-000 accepts standard 24 V DC dry contact inputs, making it suitable for various PLC or SCADA integration projects requiring rugged relay isolation.

• What type of cabling is recommended for the M4 terminals?
  Use multi-core shielded industrial cable with ring or spade lugs to ensure optimal contact pressure and long-term signal integrity under thermal cycling.

• How does the board handle power failure?
  The module requires an external 24 V DC supply. In the event of a power loss, the internal relay logic maintains an "Open" state for dry contacts, ensuring a fail-safe signal to the controller.