Description
Bently Nevada 3500/20-01-01-00 125744-02
Technical Specifications:
- Rack Interface Type: Standard RIM for standard monitoring applications
- I/O Module Type: RS232/RS422 serial communications interface
- Power Consumption: 4.75 watts typical
- Data Rate: 38.4 k baud for RS232/RS422 serial communications
- 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
- Dimensions: 241.3 mm × 24.4 mm × 241.8 mm (full-height front slot)
- Weight: Approximately 0.44 kg
Functional Features:
- Primary interface for rack configuration and machinery data retrieval
- Supports proprietary Bently Nevada protocol
- Compatible with external communications processors such as TDXnet, TDIX, and DDIX
- Front panel RS232 configuration port for local rack configuration
- Rack Interface I/O module supports daisy chain configuration using RS232 and RS422 protocols
- Data Manager I/O module connects two Bently Nevada Communication Processors to the rack
- LED indicators display operating status
- Not part of the critical monitoring path, ensuring monitoring integrity
Application Scenarios:
- Steam and gas turbine machinery protection systems
- Centrifugal compressor monitoring racks
- Power generation rotating equipment monitoring
- Petrochemical critical equipment protection
- Any 3500 series rack requiring standard communication interface
Performance Parameters:
- Communication Protocols: RS232, RS422, internal modem
- Data Rate: 38.4 k baud maximum for serial communications
- Rack Position: Slot 1 (next to power supplies)
- I/O Module Data Rate: 14.4 k baud for internal modem communications
Material Composition:
- Housing: Industrial-grade metal enclosure
- Circuit Board: Multi-layer printed circuit board with surface-mount technology
- Connectors: Standard RJ45 and industrial-grade serial communication terminals
Structural Characteristics:
- Full-height module design occupying one front slot
- Front panel LEDs indicating operating status
- Hardware switches for configuration
- Split front/rear modular design separating external wiring from rack backplane circuits
- Modular design supporting field replacement
Working Principle: The RIM acts as the unified master communication hub of the 3500 modular vibration protection rack system. It bridges the internal rack backplane bus and external industrial monitoring peripherals without interrupting critical machinery protection measurement loops. The front module contains the main processor and communication ports, while the rear I/O module transmits internal backplane bus signals to the front RIM.
Installation Requirements:
- Must be installed in slot 1 of the 3500 rack
- I/O module occupies one full-height rear slot
- Data Manager I/O module occupies one full-height rear slot if used
- Ensure rack grounding is properly established
- Use appropriate cables for RS232/RS422 connections
Use Precautions:
- One RIM is required per rack
- For Triple Modular Redundant (TMR) applications, a TMR version of the RIM is required
- The TMR RIM performs monitor channel comparison and voting logic
- Firmware IC must match the PWA revision level
- Replace modules only with compatible versions to ensure proper functionality
