Yokogawa SDV531-S53 | SIL 3 Extended Temperature DO Module

Product Overview

The SDV531-S53 (Model: SDV531) is a high-integrity digital output module designed for the Yokogawa ProSafe-RS Safety Instrumented System (SIS). Unlike standard high-density modules, the SDV531-S53 (Part Number: SDV531-S53) features 8 isolated channels, making it ideal for safety-critical applications requiring high current capacity and complete module isolation. It serves as a current source type interface to drive actuators, solenoids, and motor starters in emergency shutdown (ESD) and fire and gas (F&G) systems.

This "Standard Type" module is optimized for harsh environments, featuring ISA Standard G3 conformal coating for protection against corrosive gases. With an extended temperature rating and deterministic safety logic, the SDV531-S53 (Model: SDV531-S53) ensures that critical safety functions are executed reliably in oil and gas refineries, chemical processing plants, and power generation facilities.

Detailed Technical Specifications

The SDV531-S53 is engineered for the Field Interface I/O (FIO) architecture with a focus on electrical segregation and fault tolerance.

• Manufacturer: Yokogawa

• Model Number: SDV531-S53

• Product Type: Digital Output Module (Current Source Type)

• System Compatibility: ProSafe-RS Safety Instrumented System

• Number of Channels: 8 Isolated Digital Outputs

• Output Voltage: 24 V DC (Operational range 12V to 30V DC)

• Load Capacity: 0.6 A per channel (Aggregate total up to 5.5 A per module)

• Leak Current: ≤ 1.6 mA (When output is OFF)

• Isolation: Module-to-system and channel-to-channel isolation

• Corrosion Protection: ISA Standard G3 Conformal Coating

• Protection Mechanisms: Short-circuit protection, over-voltage, and thermal shutdown

• Internal Diagnostics: Support for line monitoring and pulse testing

• External Power Supply: 24 V DC (+20% / -10%), minimum 5 A required

• Operating Temperature: -20°C to +70°C (Extended range hardware)

• Operating Humidity: 5% to 95% RH (Non-condensing)

• Dimensions: 130 mm $\times$ 107.5 mm $\times$ 32.8 mm

• Weight: 0.3 kg (Net Unit Weight)

• Origin: Japan