Description
Bently Nevada 3500/32-01-00 184631-02
Technical Specifications:
- Module Type: Rear I/O module for 3500/32M relay module
- Compatibility: 3500/32M main board (149986-02)
- Function: Relay output terminal block and field wiring interface
- Operating Temperature: -30°C to +65°C
- Storage Temperature: -40°C to +85°C
- Humidity: 95%, non-condensing
- Dimensions: 241 mm × 24.4 mm × 99 mm (rear I/O module)
- Weight: Approximately 0.4 kg
Functional Features:
- Provides physical relay output terminals for 4-channel relay module
- Accepts relay drive signals from 3500/32M main controller
- Contains relay devices providing machinery trip contacts
- Internal termination design eliminating need for external terminal blocks
- Epoxy-sealed construction for harsh environments
- Direct backplane connection to main relay module
Application Scenarios:
- Field wiring interface for 4-channel relay output modules
- Machinery trip contact connections
- Alarm signal routing to external control systems
- Shutdown circuit interface for critical rotating equipment
Performance Parameters:
- Relay Contact Rating: Matches main module specifications (2 A at 0-30 VDC)
- Isolation: Backplane isolation from field wiring
- Signal Integrity: Maintains relay drive signal quality
Material Composition:
- Housing: Industrial-grade metal enclosure
- Circuit Board: Multi-layer printed circuit board with relay terminals
- Connectors: Internal termination blocks for field wiring
- Relays: Industrial-grade relay contacts
Structural Characteristics:
- Full-height rear slot module design
- Internal termination blocks for direct field wiring
- Backplane connector mating with main relay module
- Compact design for efficient rack space utilization
Working Principle: The I/O module receives relay drive signals from the 3500/32M main board through the rack backplane. It routes these signals to the physical relay contacts, providing the interface between the internal electronic logic and external field devices such as alarm horns, shutdown solenoids, and PLC input modules.
Installation Requirements:
- Must be installed in the rear slot corresponding to the 3500/32M main board
- Field wiring must observe relay contact current and voltage ratings
- Use appropriate wire gauge for load currents
- Ensure proper grounding of cable shields to rack ground point
- Verify terminal block connections are secure
Use Precautions:
- This I/O module is specifically designed for 3500/32M main board (149986-02)
- Not interchangeable with legacy 125720-01 I/O modules
- Field wiring must comply with relay contact ratings to prevent contact welding
- Do not mix internal and external termination types in same configuration
- Regular inspection of terminal connections recommended




