TRICONEX 2401

Digital Output Module (16‑Channel, TMR, 24VDC)

Official Specification & User Manual (English)

1. General Description

2. Part Number & Type

• Model: 2401

• Type: Digital Output Module (DO), TMR

• Series: Trident (Triconex / Schneider Electric)

• Safety Level: SIL 3 (IEC 61508)

• Approvals: TÜV Rheinland, FM, CSA

3. Key Features

• 16 Isolated Digital Output Channels

  Sinks/sources 24 VDC to field devices.

• Triple Modular Redundancy (TMR)

  Three independent output circuits per channel; 2oo3 voting ensures single‑point fault tolerance.

• High Current Rating

  Max 2 A per channel / 8 A per module (resistive load).

• Short‑Circuit & Overload Protection

  Electronic current limiting per channel; fault auto‑shutdown.

• Hot‑Swappable

  Replace module online without system shutdown.

• Comprehensive Diagnostics

  Open/load detection, short‑circuit alarm, and SOE time stamping (≤ 40 ms).

4. Technical Specifications

4.1 Output Channels

• Number: 16 channels, isolated per channel

• Signal Type: 24 VDC digital output (sink/source)

• Voltage Range: 18–30 VDC (nominal 24 VDC)

• Current: 2 A max per channel (resistive)

• Response Time: ≤ 10 ms (on/off)

4.2 Safety & Redundancy

• Architecture: Triple Modular Redundant (TMR), 2oo3 voting

• Safety Integrity Level: SIL 3

• Fault Coverage: > 99%

• System Availability: 99.999%

4.3 Environmental

• Operating Temperature: 0°C to +60°C

• Storage Temperature: −40°C to +85°C

• Humidity: 5%–95% non‑condensing

• Vibration: 5–200 Hz, 1g

• Protection Class: IP20 (module)

4.4 Power

• Backplane Power: 5 VDC / 1.5 A (from Trident chassis)

• Field Power: 24 VDC (user‑supplied, 18–30 VDC)

4.5 Physical

• Dimensions: 133 mm × 114 mm × 32 mm (5.25” × 4.50” × 1.25”)

• Weight: ~0.3 kg

• Mounting: Trident baseplate, 19” rack compatible

5. Functional Overview

• On/Off Control

  Drives 24 VDC solenoids, emergency shutdown valves, relay coils, and motor contactors.

• Triple Voting & Drive

  Three independent output drivers per channel; majority‑voted command ensures correct state.

• Diagnostics & Alarms

  Detects open load, short circuit, overload; reports to TriStation with channel‑specific fault.

• SOE Logging

  Time‑stamps output state changes and faults for safety event analysis.

6. LED Indicators

• PWR (Green): Module power OK

• RUN (Green): Module active, communicating

• FAULT (Red): Channel or module fault

• CH 1–16 (Yellow): Channel ON state

7. Installation & Configuration

1. Insert 2401 into an empty Trident baseplate slot.

2. Connect field devices (solenoids, valves) to the 16‑channel terminal block.

3. Apply 24 VDC field power to the output loops.

4. Use TriStation 1131 to:

   • Enable/disable channels

   • Set fail‑safe state (ON/OFF on fault)

   • Configure fault thresholds (overload/short)

5. Verify LED status: PWR + RUN green, no FAULT red.

8. Typical Applications

• Emergency Shutdown (ESD) valve control

• Burner Management Systems (BMS) fuel valves

• Safety interlock solenoids

• Fire & gas suppression system triggers

• HIPPS valve actuation

9. Maintenance

• Hot‑swap faulty 2401 without shutdown.

• Inspect wiring, terminals, and 24 VDC field power.

• Review SOE and fault logs via TriStation.

• Update firmware as needed.

10. Ordering Information

• Model: 2401

• Description: Triconex Trident 16‑Channel TMR Digital Output Module (24 VDC)

• Compatible with: Trident Chassis, 2101/3700A MP Modules, TriStation 1131