Description
Technical Specifications
- Product Model: 3625A
- Brand: TRICONEX
- Warranty: One Year
- Input Voltage: 24 V DC (16-32 V DC range; 36 V DC max)
- Operating Temperature: -40°C to +70°C
- Storage Temperature: -40°C to +85°C
- Response Time: <1 ms
- Protection Class: IP20
- Accuracy Class: SIL 3 capable TMR digital output
- Output Frequency: N/A (digital steady-state)
- Rated Current Range: 1.7 A per point max; 7 A surge (10 ms); 10 mA min load
- Communication Interface: Tricon backplane; TPN/Modbus/Ethernet/IP
- Supported Protocols: TMR supervised/non-supervised DO; redundant network
- Overload Capacity: Self-protecting; voltage drop <2.8 V @ 1.7 A
- Dimensions: 2.2 x 40.8 x 40 cm; 2.06 kg
Product Overview
The TRICONEX 3625A is a 32-channel TMR digital output module for Tricon safety systems, delivering supervised or non-supervised 24 V DC control to valves, solenoids, and actuators in SIL 3 ESD, Fire & Gas, and HIPPS applications. Triple modular redundancy processes commands across three channels with 2oo3 voting, ensuring output integrity despite single failures while supporting 1.7 A continuous (7 A surge) per point. Process engineers in oil & gas, refining, and power benefit from its <1 ms response, self-protection circuitry, and comprehensive diagnostics (PASS/FAULT/ACTIVE LEDs). Commoned outputs with 10 mA minimum load handle diverse field devices, while TPN/Modbus/Ethernet/IP connectivity integrates with DCS/SCADA. Rugged -40°C to +70°C operation and hot-swap capability maintain 99.999% availability in harsh cabinets, powering safety interlocks without compromising TMR logic paths. (152 words)
Key Functions
TMR Supervised Output
32 commoned points with triple-channel voting deliver reliable 24 V DC switching; supervision detects opens/shorts. Single channel faults auto-isolate without process upset.
High-Current Capability
1.7 A continuous per point (7 A 10 ms surge) drives solenoids directly; <2.8 V drop maintains voltage at load. Self-protecting design eliminates external fusing.
Fast Response Processing
<1 ms switching supports tight safety timing; minimum 10 mA load ensures reliable state detection across pilot lights to heavy coils.
Multi-Protocol Integration
TPN primary with Modbus/Ethernet/IP options feeds DCS historians; diagnostics report load status for predictive maintenance.
Application Scenarios
ESD Solenoid Arrays
Refineries control 32 isolation valves per card; TMR rejects processor glitches while supervision confirms coil health during bypass tests.
Fire & Gas Deluge
Platforms drive deluge pumps and vent solenoids; high surge capacity handles inrush while hot-swap supports continuous F&G coverage.
Turbine Trip Circuits
Power plants actuate high-energy trip solenoids; 7 A surge margin overcomes coil inrush without contactors.
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