Honeywell FTA-T-14 FTA Digital Input Terminal Board
- Product Code: FTA-T-14
- Availability: In Stock
Purchase Attributes：Original, Brand New / Used
Service Attributes：In Stock, Fast Delivery, 12 Months Warranty
Application Attributes：Honeywell FTA-T-14 FTA Digital Input Terminal Board
Honeywell FTA-T-14 4-Channel Discrete Digital Input Field Termination Assembly For FSC Fail-Safe Safety Control System
Manufacturer: Honeywell Process Solutions
Model: FTA-T-14 Field Termination Assembly (FTA Digital Input Terminal Board)
Product Type: DIN rail mounted passive signal termination terminal board, matched FSC safety controller I/O backplane
Core Matching System: Honeywell FSC Fail-Safe Safety Control System, safety interlock & emergency shutdown DCS platform
Core Function: 4-channel multi-voltage discrete digital signal field wiring conversion, galvanic channel isolation, built-in short-circuit/overvoltage/reverse polarity protection, channel status LED diagnosis, safe signal transmission for safety interlock, emergency trip, equipment status feedback signals in petrochemical, power plant safety systems
1. Product Overview
FTA-T-14 is a dedicated field termination terminal board developed by Honeywell for the FSC fail-safe safety control system, used as the physical wiring interface between safety controller main I/O modules and on-site field discrete signal devices. It adopts passive signal conditioning circuit design with independent isolation circuits for each input channel to eliminate industrial ground loop interference and improve safety signal stability in high-EMI cabinet environments.
The module supports dual field voltage input standards: 24VDC low-voltage industrial signals and 120VAC alternating voltage interlock signals, with a maximum withstand voltage of 220V to cope with grid voltage fluctuation interference. Each channel is equipped with independent signal status LED indicators and fault alarm LEDs, allowing on-site maintenance personnel to quickly locate open circuit, short circuit and abnormal signal faults without special testing tools.
Standard 35mm DIN rail installation structure, compact size suitable for dense safety cabinet layout. It cannot independently execute logic processing and must be connected to the FSC main controller I/O backplane via dedicated rear connectors to realize signal transmission. Widely deployed in thermal power boiler safety interlock, petrochemical refinery emergency shutdown systems, oil & gas pipeline safety monitoring and chemical plant safety protection logic loops as the front-end wiring termination carrier of safety digital input signals.
This series belongs to Honeywell legacy safety control spare parts, mainly used for maintenance and replacement of existing FSC system equipment.
2. Complete Technical Specifications
• Channel Quantity: 4 independent discrete digital input channels
• Supported Field Voltage: 24VDC / 120VAC dual-mode signal input, max withstand 220V transient voltage
• Input Electrical Parameters: Rated input current 10mA, channel input resistance 10kΩ, frequency response up to 30kHz
• Signal Isolation: Per-channel galvanic isolation, suppress ground loop noise and cross-channel crosstalk
• Built-in Protection: Short-circuit self-protection, overvoltage clamping, reverse polarity anti-reverse connection protection, ESD surge suppression
• Diagnostic Indicators: Independent power LED, per-channel signal ON/OFF LED, channel fault alarm LED
• System Connection: Dedicated rear male connector matched with FSC I/O backplane bus
• Power Supply: 24VDC ±10% auxiliary power from safety cabinet backplane, typical power consumption 2.1W
• Mounting Standard: EN 60715 35mm standard DIN rail clip-on installation
• Operating Temperature: Industrial safety grade -20℃ ~ +65℃ continuous operation
• Storage Temperature: -40℃ ~ +105℃; Relative Humidity: 5% ~ 95% RH non-condensing
• Mechanical Dimension: 94mm(H) × 95.3mm(W) × 57.2mm(D), net weight 0.25kg
• Enclosure Protection: IP20 front panel dustproof, insulated plastic shell flame retardant V0 grade
• Safety Certifications: CE, UL safety certification, IEC 61508 SIL 2 safety suitability for safety instrumented systems
• Compatible Host Controller: Honeywell FSC Fail-Safe Safety Controller full series I/O rack modules
3. Core Hardware Advantages
1. Dual voltage signal compatibility design, one terminal board adapts to both DC and AC field interlock signals to reduce spare part types
2. Independent isolation and multi-level protection circuit for each channel, effectively avoid safety signal distortion caused by cabinet electromagnetic interference
3. Full LED visual diagnosis design, rapid fault identification without offline testing equipment, shorten maintenance downtime of safety systems
4. Compact DIN rail small-size layout, save safety cabinet internal installation space for multi-group safety loop wiring expansion
5. SIL2 safety level compliant design, meets the safety instrument system standards of petrochemical and power industry safety shutdown logic
4. Typical Application Scenarios
• Thermal power plant boiler & turbine safety interlock discrete signal input wiring terminal board
• Petrochemical refinery emergency shutdown (ESD) system safety digital signal termination assembly
• Oil & gas pipeline safety monitoring system valve position feedback and safety interlock signal interface
• Chemical plant reaction vessel safety protection logic loop field signal wiring module
• Industrial safety instrumented system (SIS) FSC controller front-end isolated digital input terminal board
Honeywell © FTA-T-14 4-Channel Discrete Digital Input Field Termination Assembly For FSC Safety Control System