3500/22M-01-01-00 146031-01 Bently Nevada

3500/22M-01-01-00 146031-01 Bently Nevada Relay Input Module  

Product  Description：

Bently Nevada Relay Input Modules serve as fundamental monitoring and safety interface components within machinery protection systems, most notably the 3500 and 3300 series protection racks. These modules process incoming field signals from proximity probes, velocity transducers, accelerometers, and temperature sensors to evaluate machinery condition against preset safety thresholds.

When monitored vibration, position, or speed metrics breach defined alert or danger limits, the relay input module processes these logic signals to trigger output relays. These outputs initiate automated protective actions—such as alarms, emergency machinery shutdowns (trips), or control system interlocks—to prevent catastrophic mechanical failure in critical industrial turbomachinery.

Product Parameters

• Input Channel Configuration: Typically supports 4, 8, or 16 independent channel inputs per module depending on rack architecture.

• Relay Output Channels: Configurable relay channels supporting Single Pole Double Throw (SPDT) or Double Pole Double Throw (DPDT) configurations.

• Relay Contact Ratings: Up to 5A at 250V AC or 5A at 30V DC resistive continuous load capacity.

• Voting Logic Options: Programmable voting logic configurations including 1-out-of-1, 1-out-of-2, 2-out-of-2, or 2-out-of-3 logic combinations.

• Response Speed: Alarm contact activation response time typically less than 20 milliseconds upon threshold detection.

• Contact Material: Silver alloy or gold-clad contacts designed for low-current signal integrity and high-current durability.

• Isolation Voltage: 1500V RMS galvanic isolation between field inputs, internal rack logic circuits, and output relay contacts.

• Operating Temperature Range: -30°C to +65°C (-22°F to +149°F).

• Power Consumption: Low-power design drawing power directly from the 3500 system backplane power supplies.

Product Advantages

• High-Speed Protective Tripping: Rapid processing speeds ensure near-instantaneous relay contact state changes to shut down failing machinery before structural damage occurs.

• Flexible Logic Configuration: Fully programmable voting logic via Bently Nevada configuration software allows engineers to minimize false trips while maintaining safety compliance.

• Fail-Safe Operation: Supports both Normally Energized (fail-safe) and Normally De-energized modes, ensuring system trips occur if power to the protection rack is lost.

• Redundant Architecture: Seamlessly integrates with redundant power supplies and dual-channel monitoring modules to guarantee continuous protection in high-reliability applications.

• Comprehensive Self-Diagnostics: Built-in hardware test routines continuously check internal logic circuits, coil integrity, and bus communication to immediately flag internal module faults.

Important Precautions

• De-Energize Prior to Servicing: Always disconnect external power sources wired to the relay contact terminals before installing, removing, or servicing the module to prevent electrical shock.

• Verify Relay Contact Load Limits: Ensure external loads do not exceed maximum rated voltage and current limits to prevent contact welding or premature degradation.

• Configure Inductive Load Suppression: When driving inductive loads such as heavy-duty solenoids or contactor coils, install external arc suppression devices to prevent voltage spikes from damaging contacts.

• Careful Logic Verification: Double-check voting logic configurations during commissioning to prevent unwanted automatic trips or failure to trip during genuine machinery faults.

• Maintain Electrostatic Safety: Always wear a grounded electrostatic discharge (ESD) wrist strap when handling the module board during maintenance or replacement.

Product Applications

• Turbine-Generator Sets: Protecting power generation steam, gas, and hydro turbines from catastrophic vibration, thrust displacement, or overspeed events.

• Oil and Gas Compressors: Providing automated shutdown protection for large centrifugal, axial, and reciprocating compressors on offshore platforms and refineries.

• Heavy Industrial Pumps: Monitoring boiler feed pumps, main crude oil pumps, and high-pressure chemical injection pumps.

• Draft Fans and Blowers: Safely interlocking large induced draft and forced draft fans in utility boilers and cement production plants.

• Refinery Expanders and Gearboxes: Processing vibration inputs to protect high-speed gearboxes and turbo-expanders across continuous process industries.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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JUSTWELL PTE. LTD

Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.