Jaquet FTFU 3024- E02 377Z-03982 with input card -E02

The Jaquet FTFU 3024-E02 (Part Number: 377Z-03982) is a high-integrity, safety-critical speed monitoring motherboard. It operates as the core measurement channel within the renowned Jaquet FT 3000 Overspeed Protection System.

Specifically, this variation is populated with the factory-configured -E02 input card, which provides isolated, potential-free signal conditioning designed to interface with specific sensor applications—such as those operating within negative voltage ranges (e.g., 0 to -24V).

Unique Product Description

The Jaquet FTFU 3024-E02 (377Z-03982) is an industrial-grade speed monitoring module that bridges the gap between raw rotational sensors and safety-critical trip logic. Unlike generic frequency relays, the FTFU 3024-E02 is engineered for microsecond-level diagnostic precision and extreme reliability in high-consequence environments.

Featuring the onboard -E02 input card, this module is potential-free and provides up to 500V galvanic isolation from the system's rack frame and electronic chassis. It processes frequency signals in the range of 0 to 30 kHz, making it highly adaptable for complex proximity sensors, electromagnetic pickups, and custom target wheel profiles.

Technical Specifications & Features

Application Cases

The FTFU 3024-E02 motherboard is typically deployed where unplanned machinery overspeed would result in catastrophic equipment failure or severe safety hazards:

Steam and Gas Turbines: Monitoring single or multi-shaft aero-derivative and industrial turbines for rapid acceleration or overspeed conditions.

Petrochemical Compressors: Providing SIL 3-rated trip protection for high-speed process compressors.

Hydroelectric Power Generators: Tracking rotational velocity and generator shaft speed in high-vibration hydro-plant environments.

Heavy Marine Propulsion: Reliable speed tracking on large marine diesel engines, thrusters, and gearbox systems.

Product Advantages and Features

Sub-10ms Emergency Response: Employs fast-acting hardware limit comparators, ensuring shutdown signals are triggered within 10 milliseconds of threshold breach.

Galvanic Isolation: The E02 card provides 500V isolation, protecting delicate system bus electronics from harsh ground loops or field wiring surges.

Smart Diagnostics: Features continuous sensor, power supply, and system watchdogs that can detect short circuits or broken wires instantly.

Hot-Swappable Redundancy: Supports hot module exchange, allowing you to swap out motherboard modules during live operations without shutting down the system (when structured in a redundant 2oo3 voting architecture).

Other Models in the Same Series

The FT 3000 architecture utilizes variations of the FTFU 3024 motherboard with differing input cards, along with auxiliary cards to expand system functionality:

FTFU 3024-E01 (377Z-03981): The standard version configured with the E01 input card for traditional electromagnetic, ferrostat, or active proximity sensors (50mV to 80V RMS).

FTFU 3024-E03 (377Z-03983) & E04 (377Z-05855): Alternative input card layouts optimized for distinct sensor configurations.

FTW 3013 (377Z-03984): Auxiliary frequency-to-current converter module that outputs a proportional 0/4–20 mA signal.

FTV 3090 (377Z-03985): Relay voting card providing extra contact configurations for 2oo3 hardware trip chains.

FTBU 3034 (377Z-05030): Trip Chain Control card that combines local trips with remote emergency stops.

Installation and Maintenance

Installation Guidelines

Rack Mounting: The FTFU 3024-E02 is designed for insertion into standard 19-inch FT 3000 subracks. Ensure the rack chassis is properly grounded to maintain safety class 1 protection.

Sensor Alignment: For magnetic or proximity sensors feeding the E02 card, optimize the physical sensor gap with the target wheel. This maintains reliable signal amplitude even at low-RPM start-ups.

Configuration: Hook up a PC running the FT 3000 software suite to calibrate gear tooth count, specific speed thresholds, and hysteresis.

Maintenance and Field Testing

On-Line Verification: Utilize the module's three built-in test generators to simulate overspeed events and verify the signal path without physically revving the machinery.

Replacement Lifecycle: For systems serving SIL-certified safety loops, follow your facility's defined proof-test intervals. As an obsolete (but widely supported) series, ensure replacement cards are stored in ESD-safe packaging within normal temperature boundaries (-25°C to +85°C).