1. Product Overview

2. Basic Information

• Part Number: 51304728175 (51304728-175)

• Model: MC-GDID13

• Type: DI FTA, 32-channel, 24VDC, Galvanic Isolation (GI), Conformal Coating (CC), CE Certified

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

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

• Weight: Approx. 0.9 kg

• Dimensions: 318 × 29 × 278 mm

3. Technical Specifications

• Channels: 32 isolated digital inputs (2×16 groups)

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

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

• Input Current: 10mA per channel @24VDC

• Isolation: 500Vrms channel-to-chassis, 250Vrms channel-to-channel (galvanic)

• Response Time: ≤1ms (ON/OFF)

• Power Supply: 24VDC from backplane

• Power Consumption: ≤9W

• 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 cabinet space.

2. Galvanic Isolation (GI): 500Vrms isolation blocks noise and ground loops.

3. Conformal Coating (CC): Withstands humidity, dust, and corrosive gases.

4. Sink/Source Universal: Works with NPN/PNP sensors and dry contacts.

5. Fault Diagnosis: Detects channel open/short and module errors.

6. Hot Swappable: Replace without system shutdown.

7. LED Status: Per-channel and module health indicators.

8. Redundant Compatibility: Matches redundant DI IOP for high availability.

5. Application Scope

6. Installation Instructions

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

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

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

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

5. Shield Grounding: Single-point ground at FTA end to avoid 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 IOP communication.

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

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

8. Maintenance

1. Monthly Inspection: Check wiring tightness and LED status.

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

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

4. Spare Parts: Use only original Honeywell 51304728175 units.

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 use, follow approved wiring and barrier standards.