Bently Nevada 3500/34 Triple Modular Redundant Relay Output Module

Description

The Bently Nevada 3500/34 TMR Relay Module is designed for high-integrity applications requiring fault-tolerant relay outputs, using triple modular redundancy and voting logic to ensure reliable alarm and trip control.

Specifications

• Model: 3500/34

• Module Type: TMR (Triple Modular Redundant) Relay Module

• Relay Configuration: 2-out-of-3 voting logic

• Relay Outputs: 8 to 16 relays per module (depending on configuration)

• Contact Type: Form A or Form C (based on configuration)

• Contact Rating: 2A @ 30 VDC / 0.5A @ 125 VDC

• Response Time: Typically <50 milliseconds

• Power Supply: 24 VDC via 3500 rack backplane

• LED Indicators: Relay status and fault indication

• Installation: Rack-mounted in 3500 Series chassis

• Dimensions: 120.4 mm × 24.6 mm × 241.8 mm

• Weight: 0.34 kg

• Operating Temperature: –30 °C to +65 °C

• Storage Temperature: –40 °C to +85 °C

• Humidity Range: 0% to 95%, non-condensing

Features

• Triple Modular Redundancy: Uses three independent relays to drive a single output for fault tolerance

• 2-out-of-3 Voting Logic: Ensures high availability and safety-critical decision making

• Alarm Drive Logic: Configurable using AND/OR logic for alerts, dangers, and other conditions

• System Integration: Works with TMR Rack Interface Module and three monitor modules

• Fast Response: Relay switching typically occurs in under 50 milliseconds

• Visual Indicators: LED lights show relay status and fault conditions

• Flexible Output Options: Supports both Form A and Form C relay contacts

• Industrial Reliability: Designed for continuous operation in power, petrochemical, and rotating machinery environments