Honeywell FTA‑T‑14

Technical Specifications: Supported signal type: 4‑20 mA analog current signal Channel quantity: Matched to corresponding safety‑analog‑input module channel count Terminal form: Screw‑locking field‑wiring terminal block Maximum applicable wire gauge: AWG14 Communication interface: Dedicated multi‑pin interconnection‑cable connector for connecting to safety‑main module Operating temperature: ‑20 °C ~ +65 °C Protection class: IP20 Certifications: CE, UL, CSA Mounting way: Cabinet rack‑mount installation

Functional Features: Analog‑signal field‑wiring terminal distribution for safety‑instrument‑system Isolation‑matching circuit for field transmitter signal loop Screw‑locking terminals guarantee reliable field‑cable connection Dedicated interconnection‑cable interface for docking with safety‑system analog‑input main module Support field‑loop fault‑diagnosis signal transmission back to main module Channel‑by‑channel independent wiring loop, avoid cross‑channel crosstalk Suitable for SIL‑grade safety‑system field‑signal termination application

Application Scenarios: Safety‑instrument‑system analog‑input field‑transmitter signal termination Petrochemical SIS system pressure‑transmitter, temperature‑transmitter wiring interface Chemical emergency‑shutdown system analog‑signal distribution cabinet Oil‑gas processing plant safety‑control cabinet field‑signal wiring Power‑plant safety‑protection system analog‑signal field termination

Material Composition: Housing: Flame‑retardant engineering plastic Terminal block: Reinforced nylon with tin‑plated copper screw terminals Internal circuit‑board: FR‑4 flame‑retardant circuit board Back‑side connector: Gold‑plated multi‑pin industrial connector

Structural Characteristics: Standard rack‑mount modular unit, install inside control cabinet Front‑panel screw‑terminal area for field‑transmitter cable access Rear‑side multi‑pin connector for connecting safety‑main‑module interconnection cable Independent wiring‑loop layout for each signal channel No moving mechanical components inside assembly

Working Principle: Field‑site 4‑20 mA analog transmitter signal enters FTA‑T‑14 front‑panel screw terminals. Internal circuit routes each analog‑signal loop to rear‑side multi‑pin connector. Dedicated interconnection‑cable transmits analog‑signal to safety‑system analog‑input main module. FTA internal circuit maintains integrity of each signal loop, enabling main‑module to realize field‑loop open‑circuit and short‑circuit fault diagnosis. Each channel keeps signal‑loop independence to prevent signal‑crosstalk between channels.

Installation Requirements: Install inside IP20‑rated industrial control cabinet. Connect rear‑side multi‑pin connector with matched interconnection‑cable to corresponding safety‑analog‑input main module. Field‑transmitter shielded twisted‑pair cable connects to front‑panel screw terminals, tighten terminals to specified torque. Signal‑cable shall lay separately from high‑power power‑cable. Complete cabinet protective‑ground connection. Ambient temperature must stay within ‑20 °C ~ +65 °C operating range.

Usage Notes: Do not exceed allowable signal‑loop current range. Verify interconnection‑cable model matches FTA‑T‑14 and main‑module. Do not disconnect interconnection‑cable when safety‑system is online. Periodically inspect terminal‑screw tightening condition. Prevent dust and moisture accumulation inside cabinet. Do not apply in corrosive‑gas environment without cabinet‑protection measures.