1. Product Overview

2. Basic Information

• Part Number: 51304728125 (51304728-125)

• Model: MU-GDID13

• Type: Digital Input FTA, 32-channel, 24VDC, Redundant

• Compatible Systems: Experion PKS, C300, C200, TDC3000

• Mounting: Standard 19-inch UCN I/O rack

• Weight: Approx. 0.85 kg

• Dimensions: 318 × 29 × 278 mm

3. Technical Specifications

• Channels: 32 isolated digital input channels (grouped as 2×16)

• Input Voltage: 24VDC nominal (18–30VDC range)

• Input Type: Dry contact, sink/source (NPN/PNP)

• Input Current: 10mA per channel (at 24VDC)

• Isolation: 500Vrms channel-to-chassis, 250Vrms channel-to-channel

• Response Time: ≤1ms (ON/OFF)

• Power Supply: 24VDC from backplane

• Power Consumption: ≤8W

• Operating Temperature: 0°C to +60°C

• Storage Temperature: −40°C to +85°C

• Humidity: 5%–95% RH, non-condensation

• Coating: Conformal coating for G3 harsh environments

• Certifications: CE, RoHS, UL, EMC compliance

4. Key Features

1. 32-Channel High Density: Compact design saves rack space.

2. Redundant Support: Matches redundant DI IOP for high availability.

3. Wide Voltage Range: 18–30VDC accommodates fluctuating field power.

4. Sink/Source Compatible: Works with both NPN (sink) and PNP (source) sensors.

5. Fault Detection: Channel open/short circuit diagnosis.

6. Hot Swappable: Replace without system shutdown.

7. LED Status Indicators: Per-channel ON/OFF and module health.

8. Noise Immunity: Galvanic isolation suppresses EMI/RFI.

5. Application Scope

6. Installation Instructions

1. Power Off: Disconnect rack power before installation/removal.

2. Rack Insertion: Slide into designated UCN slot; secure with screws.

3. Field Wiring: Use shielded twisted-pair (22–24 AWG) for each channel.

4. Cable Separation: Keep signal cables ≥30cm from high-voltage power lines.

5. Shield Grounding: Single-point ground at FTA end; avoid ground loops.

6. ESD Protection: Wear anti-static gloves/wrist strap during handling.

7. LED Indicator Description

• PWR (Green): On = Normal 24VDC power.

• RUN (Green): Flashing = Active communication with IOP.

• FLT (Red): On = Module fault; Flashing = Channel fault.

• CH01–CH32 (Yellow): On = Input ON; Off = Input OFF.

8. Maintenance

1. Periodic Inspection: Check wiring tightness and LED status monthly.

2. Cleaning: Use dry lint-free cloth only; no liquids/abrasives.

3. Fault Response: If FLT is on, check wiring/field device; replace FTA if needed.

4. Spare Parts: Use only original Honeywell 51304728125 replacements.

9. Safety Precautions

1. Power-Only Work: Wiring/maintenance must be done with rack power off.

2. Environmental Limits: Do not exceed rated temperature/voltage/humidity.

3. No Modification: Do not open or modify internal components; voids warranty.

4. Hazardous Areas: For IS applications, use approved cables and barriers.