Yokogawa SARM55D CENTUM VP 32-Point Relay Terminal Board

Product Overview

The Yokogawa SARM55D functions as a high-density interface solution for the CENTUM VP Distributed Control System (DCS). This terminal board bridges the gap between field-side wiring and system I/O modules, facilitating the transmission of analog, digital, and relay signals. It streamlines signal routing across 32 points, ensuring consistent communication for critical process loops. We supply this unit as 100% Brand New and Original, providing a factory-certified connection point that maintains system integrity in complex automation architectures.

Part Number Breakdown

The SARM55D follows Yokogawa's systematic hardware designation for field interface units:

Technical Specifications

The SARM55D utilizes high-grade insulation and robust mechanical terminals to handle high-density signal loads.

• Total Contact Points: 32 points (16 × 2 configuration).

• Signal Compatibility: Analog, Digital, and Relay signals.

• Connection Interface: M4 Screw Terminals.

• Insulation Resistance: ≥100 MΩ at 500 V DC.

• Dielectric Strength: 500 V AC.

• Operating Temperature: 0 to 50°C.

• Unit Weight: 1.8 kg.

• Condition: Guaranteed 100% Brand New and Original.

Engineering Advantages

The SARM55D provides technical solutions for high-density wiring and electrical protection:

• Reinforced Wiring Stability: The M4 screw terminals provide superior mechanical fastening compared to standard tension clamps. This design ensures that heavy-gauge field wiring remains secure even in industrial environments prone to constant machine vibration, preventing intermittent signal loss.

• Optimized Cabinet Footprint: The 32-point high-density configuration allows engineers to consolidate more I/O into a smaller area. This efficiency reduces the total number of terminal blocks required, enabling more compact control panel designs and lowering overall enclosure costs.

• Advanced Electrical Hardening: With insulation resistance reaching 100 MΩ, the board acts as a protective barrier for internal DCS electronics. It effectively isolates sensitive system components from field-side electrical noise and transient surges, maintaining clean data transmission.

• Universal Signal Routing: This module supports diverse signal types on a single board. By accommodating analog, digital, and relay inputs/outputs simultaneously, it simplifies inventory management and allows for more flexible field-to-system mapping without switching hardware.

FAQs

• Does the SARM55D ship in original factory packaging?

  Yes. Every SARM55D unit we supply arrives in its original Yokogawa factory packaging with all manufacturer seals intact. This guarantees the item has never been deployed in a field environment.

• Can this module manage both AC and DC relay signals?

  The SARM55D supports both signal types. However, your specific field-side power supply and the capabilities of your connected CENTUM VP I/O module ultimately determine the voltage limits. Always verify your system's electrical requirements before commissioning.

• What maintenance does the SARM55D require?

  The board requires minimal active maintenance. We recommend routine inspections to verify that the M4 terminals remain tightened to the specified torque. This ensures optimal electrical contact and prevents overheating or signal drift over time.

• Is this board compatible with redundant I/O configurations?

  Yes. The SARM55D integrates seamlessly with redundant I/O setups in the CENTUM VP environment, providing a stable, unified termination point for dual-module signal paths.