Technical Specifications

• Part Number: 51304427-100 (51304427100)

• Module Type: MU-TDOR22 (Digital Output Relay FTA)

• Channel Configuration: 16 × SPDT relay outputs

• Contact Rating: 240 VAC / 125 VDC, 5 A resistive per channel

• Isolation: 1500 VAC rms channel‑to‑backplane isolation

• Input Logic: 24 VDC from UCN controller (HPM/APM)

• Power Supply: 24 VDC ±10%, 1.0 A (backplane‑powered)

• Fuse: 6 A SB (system board fuse)

• Operating Temperature: -20°C to +60°C

• Storage Temperature: -40°C to +85°C

• Humidity: 5%–95% RH, non‑condensing

• Dimensions (H×W×D): 307 × 120 × 50 mm (12‑inch size B)

• Weight: ~2.0 kg

• Certifications: Non‑CE, non‑conformally coated

• Status Indicators: 16 channel LEDs + Power/Fault LEDs

Interface & Communication Configuration

• DCS Interface: UCN backplane via edge connector (1 Mbps)

• Field Interface: Compression‑type screw terminals (16 channels, common + NC + NO)

• Redundancy: Does not support redundant controller inputs

• Diagnostics: On‑board self‑diagnostics with fault reporting to DCS

Core Functions

1. Relay Output Switching: 16 independent SPDT relays for direct field load control.

2. Field Termination: Centralizes wiring for digital output signals from DCS IOPs.

3. Electrical Isolation: Protects DCS from field‑side voltage spikes, noise, and ground loops.

4. Status Monitoring: Per‑channel LEDs for quick visual verification of output state.

5. Rack Integration: Standard TDC3000 rack‑mount design for easy installation.

Application Scenarios

• Process Industries: Chemical, petrochemical, oil & gas, power generation, pulp & paper.

• Field Device Control: On/off control of valves, pumps, fans, motors, and solenoids (up to 5 A).

• Alarm Systems: Driving audible/visual alarms for process events.

• Interlock Circuits: Non‑safety interlocks (non‑SIL rated) for process control.

Key Difference vs. 51304423-100 (MU-TDOD12)

• 51304427-100 (MU-TDOR22): 16‑channel FTA relay module (field termination focus, non‑redundant, non‑CE).

• 51304423-100 (MU-TDOD12): 12‑channel relay output module (higher density, redundant‑capable, CE/UL certified).