TRICONEX 3806E Output Module

Product Description

The Triconex 3806E is an Enhanced Analog Output (EAO) Module built by Schneider Electric for Tricon Safety Instrumented Systems (SIS). Utilizing advanced Triple Modular Redundant (TMR) architecture, this high-integrity module provides 8 total output channels divided into two distinct current loop profiles: 6 standard channels running 4-20mA and 2 high-current channels running 20-320mA.

Technical Specifications

• Manufacturer: TRICONEX (By Schneider Electric / Invensys)

• System Series Compatibility: Tricon V9 and V10 Fault-Tolerant Architectures

• Model Number Designation: 3806E

• Device Classification: Triple Modular Redundant (TMR) Enhanced Analog Output (EAO)

• Total Active Signal Output Channels: 8 points

• Channel Range Distribution:

• Channels 1 through 6: 4 to 20 mA standard industrial current loops

• Channels 7 and 8: 20 to 320 mA specialized high-power current loops

• Circuit Isolation Configuration: Non-isolated, commoned return path layout (DC-coupled)

• Digital-to-Analog (D/A) Conversion Resolution: 12-bit precision binary mapping

• Full Scale Range (FSR) Accuracy:$< 0.25\%$ variance across the 0.2 to 1.2 mA monitoring envelope

• External Loop Power Safeguards: Reverse voltage protected; +24 VDC nominal (+42.5 VDC maximum continuous)

• Hardware Failover Switch Time:$< 10$ ms typical following an internal execution leg failure

• Operational Temperature Window: 32°F to 140°F (0°C to 60°C)

• Integrated Status Diagnostic LEDs: PASS, FAULT, ACTIVE, LOAD, PWR1, PWR2

• Total Gross Shipping Weight: Approximately 1.2 kg to 1.5 kg (Depending on protective packaging)

Industrial Application Scenarios

Unlike standard analog cards that solely regulate 4-20mA loops, the TRICONEX 3806E is deployed where standard loops meet high-current demands in the same automation rack. It is widely used in turbomachinery control systems (TMC) and critical safety interlock systems. The 6 low-current channels typically drive standard pneumatic positioners or speed governors, while the 2 high-current (20-320mA) channels directly power specialized, heavy-duty hydraulic actuator coils, large steam turbine throttle valves, or variable high-torque fuel metering valves that require raw electrical energy to overcome high physical friction.