1. General Information
- Model: DI3301
- Product Type: Safety-Certified Digital Input Module (advanced variant for high-density or high-speed signal acquisition)
- Manufacturer: TRICONEX (a business unit of Schneider Electric)
- Core Function: Receives industrial-standard discrete signals (primarily 24 VDC), converts analog electrical signals into standardized digital data for SIS/DCS logic computation, and provides real-time self-diagnosis to mitigate safety risks. Complies with SIL 2/3 (Safety Integrity Level) requirements per IEC 61508, ensuring compliance with global safety standards for critical control loops.
2. Electrical Specifications
- Power Supply:
- Input Voltage: 24 VDC ±10% (supports redundant power input— a standard feature of TRICONEX safety modules—to eliminate single-point power failures and minimize system downtime).
- Power Consumption: ≤8 W under rated load (excludes power consumed by external field devices connected to input channels, ensuring low energy consumption for dense installation).
- Digital Input Specifications:
- Input Channels: 16/32 independent galvanically isolated channels (a key upgrade from entry-level DI modules; channel-to-channel isolation [typically 500 VDC] prevents cross-signal interference, limits fault propagation, and enhances system robustness).
- Input Signal Type: 24 VDC sinking or sourcing (configurable via on-module DIP switches or TRICONEX TriStation 1131 software, enabling compatibility with diverse field device wiring configurations).
- Input Voltage Range:
- Off-State Voltage: ≤5 VDC (maximum, to suppress false triggers caused by electrical noise or voltage fluctuations in industrial environments).
- On-State Voltage: 18–30 VDC (typical, compliant with IEC 61131-2 industrial standards for consistent signal detection across different field devices).
- Input Current:
- On-State Current: 3–8 mA per channel (at 24 VDC, optimized for low power draw to avoid overloading field sensors while ensuring stable signal recognition).
- Off-State Current: ≤0.5 mA per channel (minimizes standby power loss and reduces the risk of false alarms from leakage current).
- Response Time: ≤0.5 ms per channel (enhanced speed compared to basic DI modules, enabling real-time capture of fast-transient signals—such as emergency stop triggers or critical safety interlocks—to meet strict SIS latency requirements).
3. Physical & Environmental Ratings
- Dimensions: Standard 19-inch rack-mount form factor (compatible with TRICONEX SIS chassis; typical: Width ≈ 177 mm, Height ≈ 54 mm, Depth ≈ 260 mm—confirm exact dimensions with the official datasheet to ensure chassis fit).
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- Weight: Approximately 0.6–1.0 kg (net weight, excluding mounting hardware, wiring terminals, and external cables; designed for easy installation and maintenance in dense rack configurations).
- Protection Class: IP20 (suitable for indoor control cabinet installation; dust-protected, but not water-resistant—requires environmental control [e.g., temperature/humidity regulation] in harsh industrial areas with high dust, moisture, or corrosive fumes).
- Operating Temperature Range: -5°C to 65°C (extended temperature range compared to standard modules, enabling stable operation in environments with moderate temperature fluctuations, such as outdoor control shelters or refinery process areas).
- Storage Temperature Range: -40°C to 85°C (safe for long-term storage during transportation, warehouse stock, or system decommissioning, without compromising component performance).
- Humidity Resistance: 5%–95% RH (non-condensing; moisture ingress is strictly prohibited to prevent circuit board corrosion, short circuits, or signal degradation over time).
- Vibration Resistance: 5–500 Hz, 0.5 g acceleration (per IEC 60068-2-6; tested to withstand vibration from rotating machinery—such as turbines, pumps, or compressors—ensuring no signal loss or module damage).
- Shock Resistance: 20 g acceleration (11 ms duration, per IEC 60068-2-27; capable of withstanding transient mechanical impacts during installation, module replacement, or equipment startup/shutdown).
DI3301 TRICONEX PDF
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