TRICONEX 3807 Bipolar Analog Output Module

Product Description: The 3807 is a Triconex Tricon 9000 series TMR bipolar analog output module, specially designed for turbine and servo control applications. It provides four independent -60mA ~ +60mA bipolar current outputs to drive electro-hydraulic servo valves. It adopts triple modular redundant architecture, three isolated control legs output synchronously with 2oo3 voting logic, and built-in coil feedback diagnosis for servo coil circuit health check. It is widely used for steam turbine governing valve, fuel valve and IGV position closed-loop control in power plant turbomachinery control racks.

• Platform: Triconex Tricon 9000 series SIS / Turbine control system
• Channels: 4 channels bipolar analog output, range -60mA ~ +60mA
• TMR triple redundant design, per-channel DAC and readback loop diagnosis
• Built-in servo coil detection inputs to monitor coil open/short fault
• Output accuracy: ±0.25% full scale, resolution 13-bit
• Hot-swappable design, online replacement without system shutdown
• LED indicators for module health, channel status and fault alarm
• Matched with dedicated AO termination panel for servo valve wiring
• Note: It is mainly used for continuous turbine control loops, not for safety trip functions

Applications:

• Thermal power steam / gas turbine servo valve closed-loop governing control
• Compressor anti-surge valve and IGV inlet guide vane position regulation
• Oil & gas turbomachinery control system spare replacement
• Legacy Tricon 9000 turbine control retrofit and overhaul projects

FAQ:

Q: What is the difference between 3807 and 3806E?
A: 3807 is ±60mA bipolar for servo coil; 3806E is high-current unipolar 20~320mA AO. They have different output circuits and terminal wiring, not interchangeable directly.

Q: Can it replace standard 4-20mA AO module 3805E?
A: No. 3805E is 4-20mA unipolar, different output range and diagnosis function.

Q: Can it work on Tricon CX platform?
A: No, it belongs to legacy Tricon 9000 hardware, incompatible with CX rack backplane and firmware.

Q: Is TRICONEX 3807 still in production?
A: Tricon 9000 series is discontinued. Available supply is NOS surplus or fully tested refurbished spare modules.