Honeywell 51304640‑375 (51304640375)
Description
Technical Specifications
Part Number: 51304640‑375 (51304640375)
Alternative ID: MU‑GDID87, 32‑Ch DI FTA, GI/IS, 24VDC, Galvanic Isolator, CE, Crimp Terminals, Conformal Coated (CC)
Module Type: Field Termination Assembly (FTA), Digital Input Isolation (GI/IS)
System Compatibility: Honeywell UCN, TDC3000, TPS, C300 Controller, Experion PKS
Input Channels: 32 isolated channels (24 VDC, sink/source configurable, dry contact or wet 24 VDC)
Isolation Rating: 1500 VAC (channel‑to‑backplane), optical isolation per channel; IS‑rated for hazardous areas (Class I, Div. 2)
Input Voltage: 24 VDC ±10% (field side); 5 VDC (backplane logic)
Input Current: 10 mA nominal per channel (on‑state)
Response Time: <10 ms per channel (typical)
Diagnostics: Channel‑level status LEDs; remote fault logging via UCN/C300
Power: 24 VDC ±10%, 200 mA (external or backplane‑fed)
Operating Temperature: 0°C to +60°C (GI/IS‑rated, CC‑enhanced for harsh conditions)
Storage Temperature: ‑40°C to +85°C
Humidity: 5%–95% RH, non‑condensing
Dimensions (H×W×D): 152 × 178 × 25 mm (7‑inch FTA, high‑density)
Weight: ~0.45 kg
Coating: Conformal Coated (CC, for dust/moisture/corrosion resistance)
Certifications: CE, RoHS, UL 508, ATEX/IECEx (IS‑compliant)
Termination: Crimp‑style field terminals (32 positions, GI/IS‑rated)
Revisions: Common Rev E/F (hardware/firmware, CE/IS/CC‑enhanced)
Status: Active (new surplus/repair available; backward compatible with 51304640‑125/175/225/325)
Interface & Communication Configuration
Host Interface: UCN/TDC3000/C300 backplane (proprietary, 1 Mbps I/O Link)
Field Interface: 32 × crimp terminals (GI/IS‑rated, isolated per channel, 24 VDC common)
Protocol Support: UCN digital input protocol; compatible with all Honeywell UCN/C300 digital controllers
Diagnostics: 32 channel LEDs (On/Off); 2 global LEDs (Power, Fault); remote alarm via UCN/C300
Hot Swap: Yes (replace without system shutdown; auto‑reconnect in <5 seconds)
Compatibility: Drop‑in replacement for 51304640‑125/175/225/325; works with MU‑GAOX12, MC‑TAIH15, and other UCN FTAs; non‑redundant design
Core Functions
High‑Density 32‑Channel Input: Optimized for large I/O systems, saving cabinet space.
GI/IS Dual Rating: Suitable for both general industrial and hazardous area (intrinsically safe) installations.
24 VDC Galvanic Isolation: Optical isolation protects system from field noise, voltage spikes, and ground loops.
Crimp Terminal Design: Robust, vibration‑resistant connections for high‑vibration environments.
Conformal Coating (CC): Protects against dust, moisture, and corrosion for harsh industrial settings.
Wide Signal Compatibility: Accepts dry contact closures or wet 24 VDC signals from switches, pushbuttons, and sensors.
Channel‑Level Diagnostics: Individual LEDs enable quick fault isolation; remote monitoring enhances maintainability.
Application Scenarios
Harsh & Hazardous Industrial Control: Oil/gas, chemical, petrochemical, and heavy manufacturing (Class I, Div. 2 hazardous areas; dusty/moist/corrosive environments).
High‑Vibration & Harsh Conditions: Machinery, skids, outdoor installations, or coastal/industrial zones with dust/moisture.
High‑I/O Density Monitoring: Large‑scale discrete signal monitoring (limit switches, level sensors, pushbuttons).
24 VDC Signal Systems: Facilities using standard 24 VDC field devices for digital input.
Compatibility Note
System Compatibility: Honeywell UCN, TDC3000, TPS, C300 Controller, Experion PKS (requires UCN/C300 digital controller card)
Replacement Cross‑Reference:
51304640‑125: 32‑ch, GI, 0–60°C, screw terminals, CE, non‑CC
51304640‑175: 32‑ch, GI/IS, 0–60°C, screw terminals, CE, CC
51304640‑225: 16‑ch, GI, 0–60°C, screw terminals, CE, non‑CC
51304640‑325: 32‑ch, GI/IS, 0–60°C, crimp terminals, CE, non‑CC
51304640‑375: 32‑ch, GI/IS, 0–60°C, crimp terminals, CE, CC
Key Difference (375 vs 325): The 375 adds conformal coating (CC) for dust/moisture/corrosion resistance; the 325 is non‑CC.
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