Honeywell FS-SDO-0824

Product Name: Safe Digital Output Module (Safety Manager Series)
Product Introduction: A high-integrity SIL 3 capable solid-state digital output module for Honeywell Safety Manager and Experion SIS platforms, engineered to drive critical field devices (solenoids, alarms, shut-off valves) with deterministic fail-safe behavior.

Category: Honeywell

Description

Technical Specifications:
- Output Channels: 8 independent source outputs
- Nominal Voltage: 24 V DC
- Max Channel Current: 550 mA (derated to 350 mA at 70 °C)
- Voltage Drop: < 2.0 V DC at 500 mA
- Off-State Leakage: < 0.1 mA
- Logic Power: 5 V DC @ 25 mA; Internal 24 V DC @ 25 mA; External 24 V DC @ 70 mA (excl. load)
- Operating Temp: -40 °C to +70 °C
- Form Factor: 4 TE x 3 HE (rack mount)
Functional Features:
- Advanced Diagnostics: Watchdog (WDG) monitoring, short-circuit protection, crosstalk testing, and suppression diode verification.
- Fail-Safe Design: Forces outputs to a safe de-energized state upon watchdog timeout or internal fault.
- Non-Conformal Coated: Version optimized for standard controlled environments (FS suffix).
Structure & Working Principle: Plugs into the Safety Manager rack backplane; uses isolated solid-state switches (MOSFET/Transistor) to source current to field loads, with continuous self-test circuits verifying output path integrity.
Application Scenarios: Emergency Shutdown (ESD) systems, fire & gas logic, turbine protection, and high-risk process safety loops.
Installation & Notes: Install in grounded Safety Manager chassis; ensure external 24 V DC supply is isolated. Do not exceed maximum load capacitance of 1 µF to prevent output instability.

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