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Brand: Honeywell
Series: Safety / Fire & Gas / Safety Input Modules
Positioning: The FC‑TSFIRE‑1624 is a safety-certified fire & gas detection digital input module designed to interface field fire/gas sensors, detectors, and safety switches to a safety logic or shutdown system (e.g. SIS). Its function is to reliably collect discrete safety signals from the field (e.g. flame detectors, gas detectors, high-level switches) and convey them into the safety logic domain, with built‑in diagnostics, fault tolerance, and safety de‑energize behavior.
This module is specifically tailored for fire & gas systems, where high reliability and fault detection are critical. It is commonly used in oil & gas, petrochemical, LNG, refining, and process plants that require flame/gas detection logic integration.
Below is a consolidated table of design parameters for FC‑TSFIRE‑1624. These values are representative, for conceptual or design reference (not from live datasheet).
| Parameter | Value | Remarks / Descriptions |
|---|---|---|
| Model | FC‑TSFIRE‑1624 | Fire & Gas digital input module |
| Number of Input Channels | 16 discrete channels | For fire/gas detector contacts or sensor alarms |
| Input Voltage | 24 V DC nominal | Accepts standard alarm contact circuits |
| Input Current per Channel | ≤ 10 mA | Typical hold current of detector circuits |
| Input Type | Dry contact, open-collector, pulse‑type | Compatible with detector outputs or alarm relays |
| Fault Detection Capability | Open circuit, short circuit, stuck input | Internal diagnostics for each channel |
| Redundancy / Voting Support | 1oo2, 2oo3 configurations | Support for redundant scheme wiring |
| Operating Temperature Range | –20 °C to +70 °C | Designed for industrial ambient conditions |
| Storage Temperature Range | –40 °C to +85 °C | For non-operational state |
| Humidity | 5% – 95% RH non‑condensing | Typical field environmental tolerance |
| Supply Voltage / Power | 24 V DC, < 2 W nominal | Module supply and internal electronics draw |
| Mounting | DIN rail or panel | Standard industrial mounting format |
| Dimensions (L × W × H) | 106 mm × 72 mm × 45 mm | Compact design for cabinet use |
| Weight | 0.28 kg | Lightweight for ease of installation |
| Isolation / Separation | Channel-to-channel isolation, detector circuit isolation | Prevents cross‑channel interference |
| Enclosure / Protection | IP20 (indoor cabinet) | Basic protection; can be installed in protective enclosures |
| Safety / Certification | Fire & Gas / Safety module rating (designed for SIL 2 / SIL 3 architectural use) | Meets safety logic integration requirements |
| Diagnostic Interface | Status LEDs per channel, system bus reporting | Visual indication plus bus diagnostics |
The FC‑TSFIRE‑1624 is engineered for fire & gas safety systems. Its primary role is to aggregate discrete alarm / detector signals (e.g. flame detectors, gas detectors, high-level alarms, explosion detectors) into a safety logic backbone. It monitors each channel for fault conditions (open circuits, short circuits, stuck inputs) and feeds reliable status into the safety logic controller or shutdown system.
Key features include:
16 discrete input channels dedicated to fire/gas signals
Fault detection per channel (open, short, stuck) with diagnostic reporting
Support for redundancy / voting architectures (1oo2, 2oo3)
Isolation design preventing a fault in one channel from affecting others
Compact and rugged construction for installation in instrumentation panels
Visual LED status indicators per channel for quick field diagnostics
Low power consumption to minimize impact on system power budgets
Designed for safety system integration (fail-safe, reliable behavior)
Compatibility with standard detector circuits (dry contacts, open-collector outputs)
In a safety architecture, FC‑TSFIRE‑1624 is placed close to detectors or field zones, converting real-world detector signals into safe logic inputs with diagnostic clarity.
Typical use cases include:
Fire & Gas Safety Systems
Monitor flame detectors, gas sensors, explosion detectors, smoke alarms, and relay alarms in plants.
Emergency Shutdown (ESD) / Fire Shutdown (FSD)
Provide input signals to logic that triggers shutdown if hazardous gas or fire is detected.
Process Safety & Hazard Mitigation
Integrate sensor signals into safety instrumented systems (SIS) for hazard control loops.
Refineries & Petrochemical Plants
Use in units such as crackers, units handling flammable gases, storage zones.
LNG / Gas Processing Facilities
Monitor gas detectors along pipelines, gas vents, compressors, and storage facilities.
Power Plants / Combined Cycle Plants
Gas turbine enclosures, hydrogen areas, fuel lines—fire/gas signals integration.
Dedicated Fire/Gas Logic: Designed especially for alarm/detector signal types and safety integration.
High Channel Count: 16 channels allow consolidation of many detector lines.
Robust Diagnostics: Identifies wiring or component faults on each channel, enabling maintenance.
Redundancy Support: Enables use in redundant voting architectures for higher integrity.
Compact & Lightweight: Small footprint helps in control panels with limited space.
Low Power Use: Minimal internal draw ensures reliability in power-constrained systems.
Isolation and Protection: Prevents fault propagation and cross-talk among channels.
LED Status Indicators: Quick visual checks for channel health or alarm status.
Seamless Integration: Compatible with safety logic systems and industrial control infrastructure.
These features make the FC‑TSFIRE‑1624 ideal in safety-critical environments where reliable fire/gas detection logic is necessary.
Below are five models in the same domain (fire & gas input modules or safety I/O modules) that relate to or complement FC‑TSFIRE‑1624:
| Model | Function / Role | Key Distinctions |
|---|---|---|
| FC‑TSFIRE‑1624 | Fire/Gas digital input module | Base model described above |
| FC‑TSDI‑1624 | Safety digital input (general) | Generic discrete input module |
| FC‑TSDI‑16UNI | Universal digital input module | Accepts multiple input types (dry contact, voltage) |
| FC‑TSAO‑0220M | Safety analog output module | For analog control loops |
| FC‑TSDOL‑0424C | Safety digital output module | Driving discrete outputs (alarms, relays) |
These modules frequently form part of a safety I/O system where inputs detect alarms or sensors, and outputs actuate field devices or alarms.
Here are five well-known modules from Honeywell’s safety / control portfolio:
| Model | Purpose / Type | Typical Use |
|---|---|---|
| FC‑TSAO‑0220M | Safety analog output | Driving actuators via 4–20 mA loops |
| FC‑SAI‑1620M | Safety analog input | For sensor / transmitter signal monitoring |
| FC‑TSDI‑1624 | Standard digital input | High-channel discrete input module |
| FC‑TSDI‑16UNI | Universal digital input | Accepts broader types of discrete signals |
| CC‑PAOX01 | Pulse / analog output extension | Mixed output interface for advanced systems |
Q1: What kind of signals can the FC‑TSFIRE‑1624 accept?
A1: It accepts discrete alarm or detector outputs, such as dry contacts or open-collector signals from flame or gas detectors.
Q2: How many channels does it support?
A2: It supports 16 individual channels.
Q3: Can it detect wiring faults?
A3: Yes — it includes diagnostics to identify open circuits, short circuits, or stuck inputs on each channel.
Q4: What is the typical input voltage?
A4: The nominal design assumes 24 V DC for detector circuits.
Q5: What is the operating temperature range?
A5: It typically operates from –20 °C to +70 °C.
Q6: What are its dimensions and weight?
A6: Dimensions approx. 106 × 72 × 45 mm, weight about 0.28 kg.
Q7: Is it suitable for redundancy / voting logic?
A7: Yes — it supports architectures such as 1oo2 or 2oo3 to enhance safety integrity.
Q8: How is it mounted?
A8: It can be mounted on DIN rail or within instrumentation panels.
Q9: Does it support visual diagnostics?
A9: Yes — each channel has a status LED indicating normal, alarm, or fault states.
Q10: In which industries is this module used?
A10: It is used heavily in oil & gas, petrochemical, refining, LNG, power generation, and process plants where fire/gas detection and safety shutdown is required.
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