Jaquet Relay card (Auxiliary module) FTV 3090 377Z-03985

The Jaquet FTV 3090 (Part Number: 377Z-03985) is a highly reliable relay card designed as an auxiliary plug-in module for the Jaquet FT 3000 Multi-Channel Overspeed Protection and Monitoring System. Designed specifically for critical rotating machinery like steam and gas turbines, this module plays an essential role in system voting logic (e.g., 2oo3 voting architectures) to prevent catastrophic overspeed events.

1. Product Introduction / Overview

The Jaquet FTV 3090 acts as an expansion relay module that slots directly onto the FT3000 motherboard (such as the FTFU 3024). When integrated into a standard 19-inch subrack system, it adds high-capacity relay capabilities. The FTV 3090 is commonly utilized in heavy industrial environments—such as power generation plants, chemical processing facilities, and marine propulsion—to physically trigger machinery trips or sound critical alarms when safety limits are breached.

2. Technical Parameter List

The core hardware specifications and contact ratings for the FTV 3090 auxiliary card include:

3. Product Features / Core Advantages

Voting Logic Integration: Crucial for setting up 1oo2. 2oo2. or 2oo3 (two-out-of-three) voting loops. This prevents false trips while guaranteeing a shutdown if a genuine fault occurs.

Galvanic Isolation: Features potential-free contacts to isolate critical control logic loops from high-power external circuitry.

Configurable Fail-Safe Modes: Relays can be set to normal (energized) or inverse (de-energized on trip) modes to suit fail-safe system preferences.

High System Availability: Operates within the SIL 3 certified FT3000 ecosystem.

Live Status Diagnostics: Features front-panel LED indicators that allow maintenance engineers to immediately verify which relays are active, saving valuable troubleshooting time.

4. Model Classification

Within the Jaquet FT3000 platform, the FTV 3090 is classified alongside other specialized cards:

FTFU 3024 Series (Motherboards): Core speed measurement and sensor watchdogs (e.g., FTFU 3024-E01. P/N 377Z-03981).

FTV 3090 (Relay Card): Dedicated multi-contact safety tripping and voting.

FTW 3013 (Analog Card): Converts frequency to isolated, scalable current outputs (0/4–20 mA).

FTBU 3034 (Trip Chain Card): Used to route up to six trip commands into a single hardware safety chain.

5. Environmental Tolerance Conditions

Operating Temperature: 0°C to +60°C (designed to handle peak temperatures up to +70°C for a maximum of 2 hours).

Storage Temperature: -25°C to +85°C.

Relative Humidity (rH): Up to 75% average annually; up to 90% maximum non-condensing over any 30-day period.

6. Installation Method

The FTV 3090 card is designed strictly as an internal plug-in module for the FT3000 19″ rack assembly:

Power Down: Ensure the entire subrack power supply (such as FTZ 3064 or FTZ 3061) is disconnected before installing or replacing cards.

Alignment: Align the card along the designated motherboard guide rails of the corresponding FTFU 3024 channel.

Insertion: Slide the card firmly back into the chassis until the rear multi-pin DIN connector is fully seated into the backplane.

Securing: Fasten the front panel screws to ensure solid grounding and vibration resistance.

7. Operating Instructions

System Programming: Parameters (such as non-latching, mono-stable, or latching modes) must be configured prior to operation using the Jaquet FT3000 Windows Configuration Software connected via the FTK 3072/3073 communication module.

Resetting Latched Relays: If a relay is programmed to latch upon a limit violation, it will remain tripped even after speed drops below the threshold. A manual reset command must be sent via binary inputs on the motherboard or via the PC software interface.

Periodic Proof-Testing: In high-integrity installations, perform proof-testing at regular intervals. Use a multi-channel frequency generator (e.g., IST-101) to simulate overspeed conditions on the respective channels and verify that all 4 relays on the FTV 3090 trip in accordance with the programmed voting logic