HONEYWELL FC-USI-0002

Description

Product Description

Product Parameters

• Brand/Model: HONEYWELL FC-USI-0002
• Core Input Parameters
  • Number of Channels: 8 configurable universal safety input channels
  • Supported Signals:
    • Analog: 4-20mA DC, 0-10V DC, thermocouple (J/K/T/E/R/S/B/N), RTD (Pt100/Pt1000)
    • Discrete: 24V DC (sinking/sourcing, configurable per channel)
  • Resolution (Analog): 16-bit (4-20mA/0-10V), 16-bit (thermocouple/RTD)
  • Accuracy (Analog): ±0.05% full scale (4-20mA/0-10V), ±0.5°C (thermocouple), ±0.2°C (RTD)
  • Response Time (Discrete): ≤1ms (filtered), ≤0.1ms (unfiltered)
  • Isolation: Channel-to-channel isolation (1500V AC), channel-to-backplane isolation (2500V AC)
• System & Safety Parameters
  • Compatible Systems: Honeywell Safety Manager, FSC, Experion PKS (SIS integration)
  • Safety Certification: IEC 61508 SIL 3, ATEX/IECEx Zone 2, FM/CSA approved
  • Diagnostic Functions: Open/short circuit detection, signal drift monitoring, sensor power loss alerts, self-test, channel fault diagnostics
  • Communication Protocol: Honeywell proprietary SafetyBUS p, Ethernet/IP
  • Configuration Software: Honeywell Safety Builder, FSC Configurator
• Environmental & Physical Parameters
  • Operating Temperature: -40°C ~ +70°C
  • Storage Temperature: -40°C ~ +85°C
  • Vibration Resistance: 5g (10-2000Hz, IEC 60068-2-6 standard)
  • Shock Resistance: 30g (11ms half-sine wave)
  • Power Supply: 24V DC (18-32V) redundant input, power consumption ≤ 12W
  • Protection Grade: IP20 (cabinet installation)
  • Installation Method: Honeywell FSC/Safety Manager rack mounting (DIN 35mm rail compatible)
  • Dimensions: 140mm × 120mm × 45mm

Advantages & Features

1. SIL 3 Certification for Maximum Safety: HONEYWELL FC-USI-0002 is certified to IEC 61508 SIL 3, making it suitable for the most critical safety applications (e.g., emergency shutdown systems, fire/gas detection, pressure relief monitoring) where signal integrity is non-negotiable.
2. Universal Channel Flexibility: Each channel of HONEYWELL FC-USI-0002 can be independently configured for analog or discrete signals via software, eliminating the need for separate dedicated input modules and reducing hardware complexity in safety systems.
3. Advanced Diagnostics & Fail-Safe Design: The module provides real-time alerts for sensor faults (open circuits, drift, power loss) and supports configurable fail-safe states, enabling proactive maintenance and preventing unsafe operating conditions in safety-critical processes.
4. Redundancy Support & Hazardous Environment Compliance: HONEYWELL FC-USI-0002 integrates with Honeywell’s redundant SIS architectures and is certified to ATEX/IECEx Zone 2, allowing installation in explosive atmospheres (e.g., refinery process units) without additional enclosures.

Application Fields & Cases

1. Oil Refinery Emergency Shutdown System (ESD): A major oil refinery deployed HONEYWELL FC-USI-0002 modules in its Safety Manager ESD system to acquire signals from pressure transmitters (4-20mA), emergency stop buttons (24V DC discrete), and temperature probes (Pt100 RTD) in a crude distillation unit. The SIL 3 certification ensured compliance with API 556 standards, while diagnostic capabilities detected a drifting pressure transmitter before it caused a false ESD trigger.
2. Chemical Plant Reactor Safety Monitoring: A petrochemical plant integrated HONEYWELL FC-USI-0002 into its FSC system to monitor reactor temperature (K-type thermocouple), level (4-20mA), and safety interlocks (24V DC discrete) for polymerization reactors. The module’s universal channel design reduced hardware count by 50% compared to using separate analog/discrete input modules.
3. Power Plant Fire & Gas Protection System: A combined-cycle power plant used HONEYWELL FC-USI-0002 to acquire gas detector signals (4-20mA) and fire alarm contact inputs (24V DC discrete) in its turbine hall. The module’s Zone 2 certification allowed installation in the hazardous gas environment, while fast discrete response time (<0.1ms) ensured immediate activation of fire suppression systems.

Competitor Comparison

Selection Suggestions & Precautions

1. Selection Suggestions: HONEYWELL FC-USI-0002 is ideal for Honeywell Safety Manager/FSC users requiring SIL 3-certified universal safety inputs (analog + discrete) for critical SIS applications (e.g., ESD, fire/gas systems). For Siemens S7 F-system users, Siemens FAI 8AI Module is preferred (analog only); Allen-Bradley 1756-IF16H suits GuardLogix systems (analog only, SIL 2).
2. Precautions:
   • Configure channel signal types (analog/discrete) and ranges via Safety Builder/FSC Configurator to match connected safety sensors—incorrect settings may compromise safety signal integrity.
   • Use shielded twisted-pair cables for analog signals and dedicated discrete wiring to minimize EMI interference, especially in high-noise industrial environments (e.g., near motors or switchgear).
   • Ensure redundant power supply connections (24V DC from two independent sources) to maintain fail-safe operation during power supply failures.
   • Perform quarterly diagnostic checks via the configuration software to verify channel integrity and replace degraded components proactively—critical for SIL 3 safety compliance.
   • Verify ATEX/IECEx certification matches the hazardous zone classification (Zone 2 only; not suitable for Zone 1 areas).

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