Triconex DO3401S2

Description

Basic Product Specifications

• Manufacturer: Triconex (Schneider Electric Industrial Automation)
• Product Series: Trident TMR Safety Instrumented System
• Product Type: Digital Output Discrete Control Module
• Output Channels: 16 Independent Opto-Isolated Sink Output Channels
• System Architecture: Full TMR Triple Modular Redundancy 2oo3 Voting Architecture
• Compatible Baseplate: Triconex 2401 Digital Output Baseplate
• Compatible System: Trident main chassis and expansion chassis
• Installation Mode: Standard slot plug-in, hot-swappable online installation
• Origin: USA

Electrical Technical Specifications

• Nominal Field Output Voltage: 24 VDC
• Operating Output Voltage Range: 15 VDC ~ 30 VDC
• Absolute Maximum Output Voltage: 33 VDC
• Absolute Maximum Reverse Voltage: -0.6 VDC
• Typical Continuous Output Current per Channel: 3.0 A
• Maximum Self-Limiting Switching Current per Channel: 4.8 A
• Typical Degraded Mode Output Current: 1.5 A
• Minimum Self-Limiting Degraded Mode Current: 0.7 A
• On-State Voltage Drop per Channel: ＜1.0 VDC
• Off-State Load Leakage Current: ＜1 mA
• Output Logic Threshold: ON ≥ 15 VDC; OFF ≤ 5 VDC
• Optical Isolation Voltage (Field to Logic): 1500 VDC
• Functional-to-Protective-Earth Isolation Voltage: 500 VDC
• Maximum Diagnostic Glitch Duration: ＜2 ms; Typical Glitch Duration: 500 μs
• Total Channel Loop-Back Scan Time: ＜1 ms
• Built-in Full Channel Short-Circuit Protection & Overcurrent Self-Limiting Protection
• Internal Logic Power Supply: 5 VDC System Backplane Power
• Module Total Power Consumption: ＜3.5 W

Environmental Specifications

• Operating Ambient Temperature: -40 °C ~ +70 °C
• Storage Temperature: -40 °C ~ +85 °C
• Operating Relative Humidity: 5% ~ 95% Non-Condensing
• Anti-Vibration Standard: IEC 60068-2-6 Industrial Grade
• Anti-Shock Standard: IEC 60068-2-27 Industrial Grade
• Safety Certification: IEC 61508 SIL 3 Safety Certification, CE Certified, UL Certified

Mechanical Specifications

• Module Dimensions: 160 mm × 160 mm × 120 mm
• Module Net Weight: 0.8 kg
• Shell Structure: Industrial anti-corrosion flame-retardant metal composite shell
• Terminal Configuration: Independent anti-loosening field wiring terminals
• Mounting: Hot-swappable plug-and-play slot installation

Functional Characteristics

1. Full TMR Fault-Tolerant Safety Architecture

   Three independent output execution channels perform synchronous output and 2oo3 majority voting logic. Single channel fault completes automatic isolation without system shutdown, eliminates single-point failure risk and maintains continuous safe control operation.
2. 16 Independent Opto-Isolated Sink Output Channels

   Each channel adopts complete optical isolation design, fully isolates field harsh electromagnetic interference and fault voltage from internal safety system, prevents fault propagation between channels and improves output stability.
3. Advanced Loop-Back Real-Time Diagnosis Function

   Integrates full-channel output loop-back detection, short-circuit fault detection, field power loss detection, channel open-circuit detection and module self-diagnosis. All fault statuses are displayed by front-panel LEDs and uploaded to Trident controller in real time for alarm and safety interlock actions.
4. Self-Limiting Overcurrent Protection Design

   Built-in automatic current limiting circuit for all channels, prevents load short-circuit damage to module and system equipment, maintains stable output in fault conditions.
5. Ultra-Fast Response & Stable Output Control

   ＜1ms channel loop-back scan time, 500μs typical glitch duration, realizes fast and stable discrete safety control output.
6. Hot-Swappable & Maintenance-Friendly Design

   Supports online module replacement without powering down the entire safety system, greatly reduces system downtime and maintenance difficulty.
7. Intuitive Status Visual Indication

   Front panel integrated MODULE OK, FAULT, ACTIVE, FIELD POWER LED indicators and individual channel status indicators, realizes intuitive on-site status monitoring and rapid fault troubleshooting.

Application Scenarios

1. Oil & Gas Industry

   Wellhead emergency shutdown (ESD) valve control, pipeline safety interlock actuator control, gas compressor safety shutdown output, oil-gas gathering station solenoid valve sequence control.
2. Petrochemical & Refining Industry

   Reactor emergency shutdown output control, furnace burner management system (BMS) actuator control, distillation column safety interlock valve control, flare system safety output control.
3. Fire & Gas Detection System (FGS)

   Fire alarm interlock output control, hazardous gas leakage emergency shutdown control, fire fighting equipment actuator safety control.
4. Power Generation Industry

   Boiler safety interlock output control, steam turbine auxiliary equipment shutdown control, generator protection system emergency output control, water pump/fan safety shutdown control.
5. Chemical Processing & Metallurgy Industry

   Smelting furnace emergency shutdown control, production line safety interlock valve output control, pressure relief valve safety actuation control, hazardous chemical equipment safety control.
6. General High-Hazard Process Industry

   All SIL 3 safety-level discrete safety control occasions, including solenoid valve control, relay actuation, emergency stop output, and all critical safety interlock control systems requiring high-reliability 24VDC digital output.