Honeywell FS-SDO-0424 24V DC Safety Output

Honeywell FS-SDO-0424 Fail-Safe Digital Output Module Introduction

The Honeywell FS-SDO-0424 is a fail-safe digital output module designed for high-reliability safety applications. It provides robust 24V DC switching with integrated safety diagnostics and fault detection capabilities.

Core Technical Specifications

• Manufacturer: Honeywell
• Product Number: FS-SDO-0424
• Product Type: Fail-Safe Digital Output Module
• Safety Certification: TÜV certified for SIL 3 according to IEC 61508:2010
• Number of Channels: 4 independent fail-safe outputs
• Output Voltage: 24 Vdc
• Max Continuous Current: 2.0 A per channel

Electrical & Safety Characteristics

• Output Type: Solid-state with short-circuit and overload protection
• Switching Capacity: 48 W per channel (24Vdc × 2.0A)
• On-State Voltage Drop: ≤ 1.5 V at 2.0 A load
• Leakage Current (Off-state): ≤ 0.5 mA
• Response Time: ≤ 8 ms (worst-case scenario)
• Diagnostic Coverage (DC): > 95%
• Safe Failure Fraction (SFF): > 90%
• Module Power Requirements: 24 Vdc ±15%, 200 mA maximum
• Internal Power Dissipation: ≤ 4.5 W maximum

Physical & Environmental Specifications

• Module Dimensions: 40 mm × 120 mm × 110 mm (W × H × D)
• Mounting: 35 mm DIN rail (EN 60715) with locking mechanism
• Terminal Type: Removable screw terminals with captive screws
• Wire Size Range: 0.5 - 2.5 mm² (AWG 20-14) solid or stranded
• Tightening Torque: 0.6 Nm ± 0.1 Nm
• Operating Temperature: -20°C to +65°C (full performance range)
• Storage Temperature: -40°C to +85°C
• Relative Humidity: 5% to 95% non-condensing at 40°C
• Protection Degree: IP20 (front panel)
• Weight: 280 g (approximately)

Safety & Diagnostic Features

• Fault Detection: Continuous monitoring for short-circuit, open-circuit, and overload conditions
• Cross-Circuit Detection: Detects wiring errors between channels
• Thermal Monitoring: Overtemperature protection with automatic shutdown
• Status Indication: Dual-color LED per channel (green/red) for operational status
• Watchdog Function: Integrated watchdog timer for processor monitoring
• Safe State: Outputs default to OFF (de-energized) state on fault detection

Application & System Integration

• Controls 24V DC safety devices including solenoid valves, motor contactors, and safety relays
• Ideal for Emergency Shutdown (ESD), Fire & Gas (F&G), and Burner Management Systems
• Integrates with Honeywell Safety Manager SC and Experion HS platforms
• Supports redundant configurations (1oo2, 2oo3) for high availability systems
• Compatible with Safety Builder software version 4.2 or higher

Installation & Configuration Guide

• Mount on DIN rail ensuring proper ventilation and spacing
• Connect 24V DC field supply to output terminals
• Verify wiring using Safety Builder commissioning tools
• Configure output response time and diagnostic parameters
• Test fail-safe operation during commissioning phase
• Document safety function parameters as per IEC 61511 requirements

Packaging & Shipping Information

• The Honeywell FS-SDO-0424 is packaged in ESD-protective sealed packaging
• Includes module, safety manual, and configuration documentation
• Shipped via FedEx, DHL, or UPS with full insurance coverage
• RoHS and REACH compliant documentation provided

Frequently Asked Questions (FAQ)

• What is the current rating per channel? 2.0 A continuous current per channel
• What safety level does it support? SIL 3 certified by TÜV
• How many output channels? 4 fail-safe digital output channels
• What is the fail-safe state? Outputs default to OFF (de-energized) state
• What diagnostics are included? Short-circuit, open-circuit, overload, and thermal diagnostics

For technical support or to order the Honeywell FS-SDO-0424, contact us.
Email: sales@nex-auto.com
Phone: +86 153 9242 9628

Partner NexAuto Technology Limited :
https://www.nex-auto.com/

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