Description
Bently Nevada 3500/33-02-00 149992-02
Technical Specifications:
- Channels: 16 relay output channels
- Relay Type: Single-pole, double-throw (SPDT)
- Contact Rating: Maximum 5 ampere switching current
- Power Rating: 70 watts at 24 VDC, 10 watts at 48 VDC, 9 watts at 60 VDC
- Maximum Switching Voltage: 30 VDC
- Operating Temperature: -30°C to +65°C
- Storage Temperature: -40°C to +85°C
- Humidity: Up to 95%, non-condensing
- Dimensions: Full-height module, 241.3 mm × 24.4 mm × 241.8 mm
- Weight: Approximately 1.0 kg
Functional Features:
- 16 independent programmable relay output channels
- Fail-safe design ensures relays switch to safe position upon power loss or module failure
- Each relay contains alarm drive logic programmable with AND and OR logic
- Supports alarm inputs including Alert and Danger states, Not-OK status, individual measurement variables, or any monitor channel combination
- Configurable as single-pole double-throw or double-pole double-throw
- Programmed using 3500 Rack Configuration Software
- Full-height module design with predictable rack layout
- Relay output wiring in same plane as other 3500 modules
Application Scenarios:
- Steam turbine, compressor, and generator shutdown contactor drive
- Alarm signal lamp and horn input drive
- Trip circuits requiring fail-safe protection schemes
- Per-channel alarm outputs, voting outputs, and machine-level shutdown outputs
- Direct interface with PLC inputs
Performance Parameters:
- Logic Programming: AND and OR logic combinations
- Response Time: Meets machinery protection system requirements
- Contact Material: Silver alloy or equivalent high-performance material
- Electrical Life: 100,000 operations at rated load
- Mechanical Life: Exceeds 10 million operations
Material Composition:
- Housing: Industrial-grade metal enclosure
- Relays: High-quality electromagnetic relays with arc suppression
- Circuit Board: Multi-layer printed circuit board
- Connectors: Industrial-grade terminal blocks
Structural Characteristics:
- Full-height module design occupying one front slot
- Front panel status LEDs
- Relay contacts brought out through front panel terminals
- Modular design supporting field replacement
Working Principle: The module receives alarm status and measurement data from monitoring modules through the rack backplane. Internal logic circuits evaluate input signals based on user-programmed AND/OR logic conditions. When alarm conditions are satisfied, the corresponding relay is energized. The fail-safe design ensures that in the event of module power loss or internal failure, relays automatically return to the predetermined safe position, preventing protection function failure due to module malfunction.
Installation Requirements:
- Install in any slot to the right of the Transient Data Interface module
- Relay output wiring connects through front panel terminals
- External load wiring must observe contact ratings to avoid overload
- Install arc suppression devices for inductive loads
- Ensure proper rack grounding
Use Precautions:
- Requires 3500 Rack Configuration Software version 3.3 or higher
- Requires 3500 Data Acquisition Software version 2.40 or higher
- Requires 3500 Data Display Software version 1.40 or higher
- Relay output wiring must use appropriate wire gauge for current capacity
- Inspect relay contact condition regularly, replace module if contact erosion is found
- In hazardous areas, confirm explosion protection certification meets site requirements
- Fail-safe module wiring logic must be consistent with system safety philosophy
