2. Key Features

• 16 guarded AC outputs, grouped as two isolated banks of 8 channels each.

• Fault‑tolerant parallel operation: Dual modules can work in parallel for uninterrupted load control.

• Hot‑swappable: Online replacement without system shutdown.

• 100% self‑diagnostics: Comprehensive fault detection with LED and display indicators.

• Front‑panel accessible fuses: Simplifies maintenance.

• 2500 Vrms isolation: Between field and logic circuits for EMI protection.

• TÜV certified (Risk Class 5): Compliant with IEC 61508 for safety integrity.

3. Technical Specifications

• Model: T3464

• Manufacturer: Rockwell ICS Triplex

• System Compatibility: Regent/Trusted T3 series TMR systems

• Input Voltage: 24 VDC ±10% (logic power)

• Output Voltage: 110 VAC (user‑supplied field power)

• Output Current: 4 A per channel; 32 A total

• Isolation Voltage: 2500 Vrms (field‑to‑logic)

• Power Consumption: 3 W (max)

• Operating Temperature: −40°C to +70°C

• Storage Temperature: −40°C to +85°C

• Humidity: 5%–95% non‑condensing

• Dimensions: 120 mm × 140 mm × 30 mm

• Weight: 0.5 kg

• Certifications: TÜV (Risk Class 5), CE, UL

4. Installation & Wiring

4.1 Mechanical Installation

• Mount in a standard ICS Triplex T3 series rack (slots 0–15).

• Ensure chassis grounding for ESD protection.

• Maintain ≥25 mm clearance around the module for ventilation.

4.2 Wiring

• Backplane Connector: Connects to system backplane for 24 VDC logic power and I/O Safetybus communication.

• Field Terminals:

  • Two 110 VAC power inputs (for 8‑channel banks).

  • 16 output channels (CH1–CH16) for field loads (valves, relays, contactors).

• Cable Requirements: 16–20 AWG stranded copper wire; torque terminals to 0.8–1.0 N·m.

• Fuses: Install 5 A fuses per bank (front‑panel accessible).

5. Operation

5.1 Power‑Up & Self‑Test

• Apply 24 VDC logic power; the module runs a 5‑second initialization sequence:

  1. Display test (8.8.8.8)

  2. RAM/PROM self‑tests

  3. Normal mode (blinking decimal points indicate processor activity)

• “PWR” LED (green) lights; “FAULT” LED (red) remains off if healthy.

5.2 Normal Operation

• Output Control: Triplicated commands from the system processor are voted by two independent microcontroller sections; outputs activate only if both sections agree.

• LED Indicators:

  • Green: Channel ON.

  • Off: Channel OFF.

  • Red: Channel fault (overload/short circuit).

• Display: Shows channel status and diagnostic codes (e.g., “AFO” for RAM failure).

5.3 Fault Handling

• Channel Fault: Module disables the faulty channel; “FAULT” LED lights. Check wiring, load, or fuses.

• Module Fault: Communication loss or internal error. Verify backplane connection or replace the module (hot‑swap supported).

6. Maintenance

• Monthly Inspection: Check LED status, wiring tightness, and fuse condition.

• Cleaning: Use a dry cloth to remove dust; avoid harsh chemicals.

• Self‑Test: Trigger via system software quarterly to validate diagnostics.

• Replacement: Hot‑swap procedure: remove faulty module, insert new one, and confirm operation via system diagnostics.

7. Safety Precautions

• ESD Protection: Wear a grounded wrist strap when handling the module.

• Power Isolation: Disconnect both 24 VDC logic power and 110 VAC field power before wiring.

• Load Ratings: Do not exceed 4 A per channel or 32 A total current.

• Fault Response: Address “FAULT” LED alerts immediately to maintain safety integrity.