Product Overview

Basic Information

• Part Number: 51304831100 (51304831-100)

• Module Type: TP DG I/O Board (Digital I/O Interface Board)

• Compatible System: Honeywell TDC3000 DCS

• Manufacturer: Honeywell

• Country of Origin: USA

• Installation: Standard TDC3000 I/O Rack

• Coating: Conformal coating (optional)

• Certification: CE, RoHS, UL

Technical Specifications

• I/O Channels: 16 digital inputs / 16 digital outputs

• Input Signal: 24 VDC dry contact / voltage pulse

• Output Type: Relay contact output

• Relay Rating: 2 A @ 250 VAC; 1 A @ 24 VDC

• Isolation: 1500 VAC between channels

• Power Supply: 5 VDC (backplane) + 24 VDC (field)

• Power Consumption: 8–25 W

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

• Storage Temperature: -40°C to +85°C

• Humidity: 5%–95% RH, non-condensing

• Environmental Rating: IP20 (dust-protected)

Key Features

• High-Density Digital I/O: 16DI/16DO integrates field switching signals and relay control.

• Strong Isolation Performance: 1500 VAC channel-to-channel isolation reduces crosstalk.

• Hot-Swappable: Supports online replacement without system shutdown.

• Industrial-Grade Reliability: Conformal coating for dust, moisture, and chemical resistance.

• Self-Diagnosis & LED Indicators: Power, run, and fault LEDs for real-time status.

• Compact Design: Saves cabinet space with standard rack mounting.

Application Scope

• Industries: Power, chemical, oil & gas, pharmaceuticals, water treatment.

• Field Devices: Limit switches, pushbuttons, relay coils, solenoid valves, motor starters.

• System Role: TDC3000 DCS digital signal interface for on/off control and status monitoring.

Installation & Wiring

1. Power Off First: De-energize the rack before insertion/removal.

2. Rack Installation: Insert into a standard TDC3000 I/O slot and secure.

3. Signal Wiring: Use shielded twisted-pair cables for 24 VDC signals; separate from high-voltage lines.

4. Grounding: Single-point grounding to avoid ground loops; ensure chassis ground is reliable.

5. ESD Protection: Wear anti-static wristbands during handling.

Indicator Description

• PWR (Green, steady): Power supply normal.

• RUN (Green, flashing): Module operating normally.

• FLT (Red, on): Module fault, channel error, or communication failure.

Maintenance Requirements

• Periodic Inspection: Check connections and terminals for looseness or corrosion.

• Cleaning: Wipe surface dust with a dry soft cloth; avoid liquid cleaners.

• Replacement: Use only original Honeywell parts; do not disassemble the board.

• Fault Handling: Address red FLT alarms promptly to avoid process impact.

Safety Notice

• All wiring and maintenance must be performed with power disconnected.

• Do not exceed rated voltage, current, or temperature limits.

• Unauthorized modification or disassembly is prohibited.

• Comply with site safety rules and ESD procedures.