Bently Nevada 3500/32-01-00 149986-02

Product Introduction: This module is an upgraded 4-channel relay control module designed for the Bently Nevada 3500 series machinery protection and condition monitoring system. As the main board (PWA 149986-02) of the 3500/32M module, it provides four independent relay output channels with enhanced features including SIL 2 functional safety and ATEX/IECEx hazardous area certifications. The module supports expanded input compatibility for Not-OK and PPL signals alongside standard alarm inputs.

Category:

Description

Bently Nevada 3500/32-01-00 149986-02

Technical Specifications:

  • Module Type: Full-height 4-channel relay control module main board
  • Channels: 4 independent relay output channels
  • Power Consumption: 5.8 watts typical
  • Relay Type: Single-pole, double-throw (SPDT)
  • Contact Life: 100,000 cycles at 5 A, 24 VDC or 240 VAC
  • Minimum Switched Current: 100 mA at 12 VDC
  • Maximum Switched Current: 2 A at 0-30 VDC, 0.75 A at 48 VDC, 0.2 A at 125 VDC
  • Maximum Switched Power (AC): 450 VA
  • Operating Temperature: -30°C to +65°C (-22°F to 150°F)
  • Storage Temperature: -40°C to +85°C
  • Humidity: 95%, non-condensing
  • Environmental Sealing: Epoxy-sealed
  • Arc Suppressor: Up to 250 Vrms
  • Dimensions: 241 mm × 24.4 mm × 242 mm
  • Weight: 0.7 kg

Functional Features:

  • Four independent programmable relay output channels
  • Alarm drive logic with AND/OR programming capability
  • Supports alarming inputs including Alert, Danger, Not-OK, and individual PPLs
  • Voting logic for high-reliability protection strategies
  • Enhanced features including SIL 2 functional safety certification
  • ATEX/IECEx/cNRTLus hazardous area approvals
  • Expanded input compatibility compared to legacy versions
  • LED status indicators for each channel

Application Scenarios:

  • Turbomachinery vibration and pressure monitoring
  • Reciprocating compressor abnormal pressure pulsation detection
  • Power generation generator cooling system monitoring
  • Oil and gas pipeline compressor protection
  • Petrochemical reactor vessel temperature analysis
  • Marine and offshore propulsion system shaft alignment detection

Performance Parameters:

  • Logic Programming: AND/OR logic with voting capability
  • Relay Response: Real-time alarm response
  • Communication Integration: EtherCAT option available for controller communication
  • Compliance: API 670 and API 618 standards

Material Composition:

  • Housing: Industrial-grade metal enclosure
  • Circuit Board: Multi-layer printed circuit board with relay drive circuits
  • Relays: High-reliability industrial-grade SPDT relays
  • Connectors: Front panel relay output terminals

Structural Characteristics:

  • Full-height module design occupying one front slot
  • Front panel LEDs for OK, TX/RX, and channel alarm indication
  • Modular plug-in design for rack installation
  • Compatible with 3500/32M I/O module 184631-02

Working Principle: The module receives alarm status signals from monitoring modules through the rack backplane. Internal logic circuits evaluate the alarm conditions based on user-programmed AND/OR logic. When alarm conditions are met, the module drives the corresponding relay outputs to trigger external alarm devices, shutdown systems, or control circuits.

Installation Requirements:

  • Install in any full-height slot to the right of the Transient Data Interface module
  • Requires compatible I/O module (184631-02) for rear connection
  • Use 3500 Rack Configuration Software Rev 4.5 or higher
  • Requires 3500/22 TDI module with Rev 1.71+ firmware
  • Ensure compatible display module firmware

Use Precautions:

  • This module is not interchangeable with legacy 125712-01 modules
  • Requires specific software and firmware versions for proper operation
  • Relay contact ratings must not be exceeded
  • Install arc suppression devices for inductive loads
  • Verify hazardous area certification requirements for intended installation location