High-Density Digital Output for Tricon TMR Safety Systems
The Triconex 3601 digital output module provides high-integrity control for critical safety applications within the Tricon Triple Modular Redundant (TMR) architecture . This module delivers sixteen non-commoned AC outputs for driving field devices like solenoids and alarms . It features advanced voter circuitry that guarantees continuous operation despite single or multiple component faults .
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Triconex (Schneider Electric) |
| Model | 3601 |
| Series | Tricon TMR Safety Instrumented System |
| Product Type | Digital Output (DO) Module |
| Architecture | Triple Modular Redundancy (TMR) |
| Number of Outputs | 16 (non-commoned) |
| Nominal Output Voltage | 115 VAC |
| Voltage Range | 80-155 VAC |
| Current per Channel | 2A continuous, 12A surge |
| Frequency Range | 47-63 Hz |
| Voltage Drop | < 3V typical |
| Load Leakage | 2 mA maximum @ 60 Hz |
| Isolation | 1,500 VDC / 2,500 VDC |
| Fuses | 3A fast-acting (one per output) |
| Operating Temperature | -40°C to +70°C |
| Weight | 3.75 – 4.8 kg |
| Dimensions (HxWxD) | 49 cm × 45.3 cm × 6.8 cm |
Triple Modular Redundancy for Maximum Fault Tolerance
The Triconex 3601 employs a fully triplicated architecture that eliminates single points of failure in safety-critical systems . Special quadruplicated voter circuitry on the module produces a single voted output from three processor signals . This design guarantees safe operation and high system availability for Emergency Shutdown (ESD) and Fire & Gas applications .
Advanced Diagnostic and Supervision Features
This module utilizes voltage-loopback circuits to verify each output switch independently of load presence . If detected field voltage fails to match commanded output state, a LOAD/FUSE alarm indicator activates immediately . Individual LED indicators provide PASS, FAULT, and ACTIVE status for each channel . The module continues operating properly in the presence of a single fault or certain multiple faults .
Robust Output Design and Configuration
The Triconex 3601 provides sixteen non-commoned outputs, ensuring maximum signal independence . Each output includes a 3A fast-acting fuse for protection against overcurrent conditions . The module supports hot-spare capability and requires a separate external termination panel (ETP) connected via cable interface to the Tricon backplane . Mechanical keying prevents improper installation in configured chassis .
Application Environments
This module operates reliably across a temperature range from -40°C to +70°C . It suits demanding applications in oil and gas, chemical processing, and power generation industries . The high integrity design also supports applications requiring IEC 61508 SIL 3 certification.
Details
| Weight | 2.85 kg |
|---|---|
| Dimensions | 41.2 × 17.8 × 6.2 mm |

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