The Triconex 3401 functions as a high-reliability digital output module for Triconex safety-critical control systems. This unit delivers secure digital signal switching for final elements in emergency shutdown and process safety applications. Consequently, it ensures robust and fail-safe control of solenoids, actuators, and alarms in harsh industrial settings.
Core Technical Specifications
We engineered the Triconex 3401 for maximum integrity in demanding safety environments requiring advanced diagnostics. The table below details its essential electrical and diagnostic parameters:
| Parameter | Specification |
|---|---|
| Manufacturer | Triconex (Schneider Electric) |
| Model Number | 3401 |
| Product Type | Digital Output Module |
| Output Channels | 16, common ground configuration |
| Nominal Output Voltage | 24 V DC |
| Operational Voltage Range | 15 – 30 V DC |
| Absolute Max Output Voltage | 33 V DC |
| Reverse Input Voltage (Max) | -0.6 V DC |
High Current Capacity with Self-Limiting Protection
| Parameter | Value |
|---|---|
| Switching Current (Typical) | 3.0 A |
| Switching Current (Self-Limiting) | < 4.8 A |
| Degraded Mode Current (Typical) | 1.5 A |
| Degraded Mode Current (Self-Limiting) | > 0.7 A |
Comprehensive Diagnostic Coverage
| Diagnostic Feature | Specification |
|---|---|
| Diagnostic Functions | Open circuit, short circuit, power fault, output readback |
| Glitch Duration (Max) | < 2 ms |
| Glitch Duration (Typical) | 500 µs |
| Fault Detection | Stuck-on/off switch, drive circuitry monitoring |
| Loop-back Scan Time | < 1.0 ms for all 16 points |
High-Current 16-Channel Outputs
The 3401 provides 16 independent digital output channels, each capable of switching up to 3.0 Amps typically. You can directly drive solenoids, motor starters, and alarm devices without interposing relays. Therefore, the Triconex 3401 simplifies safety system design and reduces component count.
Wide Operational Voltage Range
This module operates across a broad 15 to 30 V DC range, accommodating fluctuations in field power supplies. It withstands absolute maximum voltages up to 33 V DC and protects against reverse polarity. Consequently, it maintains reliable operation even with unstable or varying power sources.
Advanced Self-Limiting Current Protection
The 3401 features built-in self-limiting current protection on all output channels. It limits switching current to below 4.8 A and degraded mode current to above 0.7 A. As a result, it protects both the module and field wiring from damage during fault conditions.
Comprehensive Continuous Diagnostics
Advanced diagnostics continuously monitor each output channel for open circuits, short circuits, and power faults. The module performs output readback and stuck-on/off switch detection every scan cycle. Hence, it detects failures immediately and reports them to the safety system for appropriate action.
Fast Fault Detection for High Integrity
The module completes a full loop-back scan of all 16 points in less than 1.0 millisecond. It detects and filters glitches shorter than 2 milliseconds, ensuring only valid faults trigger alarms. Therefore, the Triconex 3401 provides the fast, reliable fault coverage required for SIL-rated applications.
Rugged Construction for Harsh Environments
Triconex designed this digital output module for reliable operation in extreme industrial conditions. Its rugged construction withstands vibration, temperature extremes, and electrical noise. Consequently, you can deploy the 3401 in the most demanding onshore and offshore safety applications.
Details
| Weight | 2.85 kg |
|---|---|
| Dimensions | 41.2 × 17.8 × 6.2 mm |
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