TRICONEX 3806E

Description

1. Product Description

2. Product Parameters

Parameter	Specification
Input Channels	16 isolated digital inputs
Input Voltage	24V DC (11–30V DC tolerant)
Contact Type	Dry contacts or solid-state switches
Isolation	500V RMS channel-to-chassis
Debounce Time	Programmable (1–500 ms)
Redundancy Support	TMR architecture (triple redundancy)
Communication	Triconex Triplex Backplane (internal)
Power Supply	24V DC (±15%)
Operating Temperature	-40°C to +70°C
Certifications	IEC 61508 (SIL 3), ATEX, CSA

TRICONEX 3806E

3. Advantages and Features

• Triple Redundancy: Built into Triconex’s TMR platform, the 3806E provides hardware redundancy, ensuring single-fault tolerance and continuous operation even during component failures.
• Electrical Isolation: 500V RMS isolation per channel protects against voltage surges and noise, enhancing signal integrity in noisy industrial environments.
• Programmable Debounce: Adjustable debounce time minimizes false triggers from transient signals, improving input reliability.
• SIL 3 Certified: Meets the highest safety integrity levels, making it suitable for safety instrumented systems (SIS) and critical control applications.

4. Application Areas and Cases

• Application Areas: Widely used in oil & gas production, petrochemical plants, power generation, and marine systems. Common applications include emergency shutdown (ESD) systems, machine safety interlocks, and status monitoring of valves/pumps.
• Application Case: In a offshore oil platform’s ESD system, the Triconex 3806E was deployed to monitor digital signals from emergency stop buttons and fire detection sensors. Its TMR redundancy and noise immunity ensured reliable signal processing during critical events, enabling rapid activation of safety protocols to prevent hazardous incidents.

5. Comparison with Similar Products

Compared to standard digital input modules, the 3806E distinguishes itself through its TMR architecture and SIL 3 certification, offering unmatched reliability for safety-critical scenarios. Its wide operating temperature range (-40°C to +70°C) and robust isolation exceed typical industrial modules, making it a preferred choice for applications requiring high availability and compliance with strict safety standards.

TRICONEX 3806E

6. Selection Advice

• System Compatibility: Ensure the module is compatible with your Triconex controller and backplane to leverage full TMR capabilities.
• Input Requirements: Verify voltage levels, contact types, and channel count match your field devices (e.g., proximity switches, limit switches).
• Safety Needs: Prioritize the 3806E for applications requiring fault tolerance and SIL 3 compliance, such as SIS or safety-critical control loops.

7. Precautions

• Wiring Practices: Follow Triconex’s guidelines for shielded cabling and proper grounding to minimize EMI/RFI interference.
• Configuration: Use approved software (e.g., TriStation) to program debounce settings and enable redundancy features.
• Maintenance: Regularly review module diagnostics for channel health and replace faulty components promptly to maintain system integrity.