Yokogawa SED2D-11 Digital Terminal Board

Product Introduction

The Yokogawa SED2D-11 Digital Terminal Board is a high-performance industrial interface module developed for digital signal transmission within Yokogawa’s CENTUM VP and ProSafe-RS control systems. It functions as a connection interface between I/O modules and field devices, ensuring reliable, isolated, and interference-free digital signal communication.

Designed for both digital input and output applications, the SED2D-11 board provides safe signal handling for field devices such as switches, relays, and solenoids. Its robust build quality and superior electrical isolation make it well-suited for harsh industrial environments where consistent performance and electrical protection are essential.

With LED status indicators, fault diagnostics, and modular wiring options, the SED2D-11 improves maintainability and minimizes downtime. It has become a standard choice for users seeking durable, flexible, and easily integrable digital terminal solutions in automation systems.

Product Specifications

Product Applications

The SED2D-11 is widely used across industrial control and automation systems, ensuring stable signal processing for critical operations.

• Distributed Control Systems (DCS) – Interfaces field equipment with central processors in process automation.

• Safety Instrumented Systems (SIS) – Used in ProSafe-RS systems for discrete safety inputs and outputs.

• Oil & Gas Industry – For emergency shutdown systems and valve position monitoring.

• Power Generation – Supervises and controls breaker signals and turbine control logic.

• Chemical & Petrochemical Plants – Handles interlock and status signal processing.

• Water Treatment Facilities – Controls solenoid valves, switches, and flow indicators.

Product Advantages

• High Signal Reliability – Ensures stable and interference-free communication in electrically noisy environments.

• Built-in Protection – Overvoltage and reverse polarity protection safeguard both module and field devices.

• Modular Structure – Facilitates fast maintenance and system expansion.

• LED Channel Indication – Provides instant visual status of each signal channel.

• Redundant Configuration Support – Ensures continuous operation during module failure.

• Compact Design – Saves panel space while offering high channel density.

• Certified Quality – Compliant with major industrial and environmental standards.

FAQ

1. What type of isolation does the SED2D-11 use?
   The board provides optical or galvanic isolation between the field and logic circuits to prevent electrical interference.

2. Can the SED2D-11 operate with different digital I/O modules?
   Yes, it supports multiple Yokogawa I/O module types within the CENTUM and ProSafe-RS series.

3. Does the board provide status indication for each channel?
   Yes, each channel is equipped with an LED indicator that displays its ON/OFF condition.

4. Is redundancy supported by the SED2D-11?
   Yes, it can be configured for redundant operation when paired with compatible redundant I/O modules.

5. How does the board handle signal faults?
   It automatically detects short circuits or disconnections and reports diagnostic information to the control processor.

6. What is the maximum load current supported by output channels?
   Each output channel can handle up to 0.5 A, depending on the connected output module.

7. Can the board process fast pulse signals?
   Yes, it supports pulse input signals within its specified response time (<5 ms).

8. Is hot-swapping possible during operation?
   Yes, the SED2D-11 can be replaced without system shutdown, provided proper safety procedures are followed.

9. What is the typical power consumption of the unit?
   The board consumes approximately 3 W during normal operation.

10. Does the board include built-in surge protection?
    Yes, integrated surge protection circuits protect against transient voltage spikes and surges.

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FAQ

1. What type of isolation does the SED2D-11 use?
   The board provides optical or galvanic isolation between the field and logic circuits to prevent electrical interference.

2. Can the SED2D-11 operate with different digital I/O modules?
   Yes, it supports multiple Yokogawa I/O module types within the CENTUM and ProSafe-RS series.

3. Does the board provide status indication for each channel?
   Yes, each channel is equipped with an LED indicator that displays its ON/OFF condition.

4. Is redundancy supported by the SED2D-11?
   Yes, it can be configured for redundant operation when paired with compatible redundant I/O modules.

5. How does the board handle signal faults?
   It automatically detects short circuits or disconnections and reports diagnostic information to the control processor.

6. What is the maximum load current supported by output channels?
   Each output channel can handle up to 0.5 A, depending on the connected output module.

7. Can the board process fast pulse signals?
   Yes, it supports pulse input signals within its specified response time (<5 ms).

8. Is hot-swapping possible during operation?
   Yes, the SED2D-11 can be replaced without system shutdown, provided proper safety procedures are followed.

9. What is the typical power consumption of the unit?
   The board consumes approximately 3 W during normal operation.

10. Does the board include built-in surge protection?
    Yes, integrated surge protection circuits protect against transient voltage spikes and surges.

Related Models from the Same Series

Popular Yokogawa Models

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