Bently Nevada 125704-01 | 3500/34 TMR Relay I/O Module

Overview

The Bently Nevada 3500/34 TMR Relay I/O Module is designed to drive three independent alarm contact signals for each of its four relay channels. It operates based on user-programmed Alarm Drive Logic, which is configured using the 3500 Rack Configuration Software.

This Triple Modular Redundant (TMR) Relay Module enhances system reliability by using three separate data paths to receive alarm signals, ensuring accurate decision-making for machine protection applications.

Key Features

• TMR Architecture: Three independent alarm signals per relay channel for enhanced redundancy.
• 2-out-of-3 Voting Mechanism: Ensures reliable alarm relay activation.
• Independent Alarm Contact Signals: Each relay channel receives signals from three separate monitors.
• Status Monitoring:
  • OK LED: Indicates proper functioning.
  • TX/RX LED: Flashes to show communication with other modules.
  • CH ALARM LEDs: Illuminate when a relay channel enters an alarm state.

Specifications

Inputs

• Power Consumption: 9.6 Watts (typical).

Outputs

• Relay Type:
  • Three double-pole, double-throw (DPDT) relays per channel, connected in a single-pole, single-throw (SPST) configuration.
  • Arc Suppressor: Not supported.
• Contact Life: 100,000 cycles at 1.5 A, 24 VDC or 1 A, 120 VAC.
• Relay Operation: Each channel is normally energized.

Environmental Limits

• Operating Temperature: -30°C to +65°C (-22°F to +150°F).
• Storage Temperature: -40°C to +85°C (-40°F to +185°F).
• Humidity: 95% non-condensing.
• Sealing: Epoxy-sealed for durability.

Physical Dimensions

• Height: 241 mm (9.50 in)
• Width: 24.4 mm (0.96 in)
• Depth: 99.1 mm (3.90 in)
• Weight: 0.5 kg (1.0 lb)

Applications

• Machinery Protection – Ensures accurate relay triggering for critical equipment.
• Redundant Safety Systems – Provides fail-safe relay activation using a 2-out-of-3 voting mechanism.
• Industrial Alarm Systems – Designed for use in high-reliability environments where redundant monitoring is crucial.

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• Email: uma@meloauto.com
• WhatsApp: +8615915488782
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