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




