Product Description

Model Definition

• 5130: Indicates TDC 3000/UCN DCS series.

• 4728: Denotes Digital Input FTA with 16‑channel isolation.

• 375: Specifies conformally coated PCB, 24 VDC input, screw terminals, and redundant compatibility.

  Also known as MU‑TDIA16 (16‑channel Digital Input FTA, GI/IS, coated).

Technical Specifications

• Channels: 16 differential digital input channels.

• Signal Type: 24 VDC dry contact or active high/low signals.

• Isolation: 1500 VAC RMS galvanic isolation between field and system sides.

• Terminals: Gold‑plated screw terminals (field wiring) and 50‑pin ribbon cable connector (system side).

• Input Voltage: 24 VDC nominal, 18–30 VDC operating range.

• Current Draw: ≤10 mA per channel.

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

• Storage Temperature: -40°C to +70°C.

• Humidity: 5%–95% non‑condensing.

• PCB Coating: Conformal coated (for harsh environments).

• Certifications: CE, UL, CSA, RoHS.

• Form Factor: Size B, weight approx. 1.2 kg.

Interface and Communication Configuration

• System Side: Connects to digital input IOPs (e.g., MC‑PDI02, 51304446‑150) via a dedicated 50‑pin ribbon cable.

• Field Side: 16 pairs of screw terminals for 24 VDC digital inputs (switches, relays, proximity sensors).

• Isolation: Complete galvanic isolation blocks ground loops and transient voltages.

• Redundancy: Supports dual‑module redundancy for high‑availability systems.

• Protocol: Passive FTA; no independent communication protocol. All signal processing and diagnostics are handled by the connected IOP and DCS.

Core Functions

• Provides 16‑channel isolated digital input termination for 24 VDC field devices.

• 1500 VAC isolation protects DCS from electrical noise, ground loops, and voltage spikes.

• Conformal coating ensures reliability in humid, dusty, or corrosive environments.

• Internal filtering and surge protection enhance signal stability and device longevity.

• Gold‑plated terminals resist oxidation and vibration, ensuring consistent connections.

• Drop‑in compatible with TDC 3000/TPS/UCN/Experion PKS; supports hot‑swap replacement.

Application Scenarios

• Systems: Honeywell TDC 3000, TPS, UCN, Experion PKS DCS.

• Industries: Oil & gas, chemical, petrochemical, power generation, pharmaceutical, pulp & paper, mining.

• Field Devices: Limit switches, pressure switches, level switches, proximity sensors, relay contacts.

• Installation: DCS control room cabinets, local control panels, and harsh industrial environments (high humidity, dust, corrosive gases).

Usage and Maintenance Instructions

Usage

• Mount the FTA in a standard DCS cabinet with adequate space for wiring and ventilation.

• Connect the 50‑pin ribbon cable to the corresponding digital input IOP; ensure full insertion and locking.

• Wire field devices to the designated terminals, observing polarity; tighten terminals to 0.8–1.0 N·m torque.

• Power on the DCS, verify no fault alarms, and confirm input status accuracy via the system interface before operation.

Maintenance

• Keep the environment clean, dry, and well‑ventilated.

• Inspect terminals and cables quarterly for tightness, corrosion, or damage; replace worn components promptly.

• Clean the PCB and terminals with a dry, soft cloth only; do not use liquids or abrasives.

• Store spare units in anti‑static bags in a cool, dry area.

• Use anti‑static wristbands and mats during handling to prevent ESD damage.

• Do not disassemble the unit; repairs must be performed by authorized personnel.