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BENTLY 3500/60 Relay Module
Product Overview
The BENTLY 3500/60 is a high-reliability Relay Module designed as a critical component of Bently Nevada’s 3500 Series Machinery Protection System, a leading platform for rotating equipment health monitoring. Engineered to provide fail-safe alarm and shutdown capabilities, this module converts monitoring system outputs into electrical relay signals, triggering protective actions in turbines, compressors, and generators. As part of the 3500 Series, the 3500/60 integrates seamlessly with other 3500 modules (e.g., vibration monitors, keyphasor modules), forming a comprehensive protection ecosystem for industrial applications in oil & gas, power generation, and manufacturing.
Featuring a rugged industrial design, the BENTLY 3500/60 includes 8 independent relay channels, each capable of switching 250 V AC/30 V DC loads up to 5 A. Its dual redundant power supply and fail-safe relay configuration ensure reliable operation even during transient faults, meeting the highest safety integrity standards (SIL 3). The module’s hot-swappable architecture allows replacement without powering down the system, minimizing downtime during maintenance. With built-in diagnostic capabilities and LED status indicators, the 3500/60 provides real-time feedback on relay status and fault conditions, enhancing operational visibility and reducing troubleshooting time.
In automation ecosystems, the 3500/60 serves as the interface between monitoring systems and field actuators, translating vibration, displacement, or temperature alarms into physical actions (e.g., valve closures, motor shutdowns). Its compatibility with BENTLY’s 3500 Series software enables intuitive configuration of relay logic, including latching, non-latching, and time-delay functions. By delivering reliable relay outputs for critical protection functions, this module helps prevent catastrophic equipment failures and ensures compliance with industry safety standards like API 670.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 3500/60 |
| Manufacturer | Bently Nevada |
| Product Type | Relay Module |
| Relay Channels | 8 independent channels |
| Contact Rating | 250 V AC/30 V DC, 5 A resistive load |
| Relay Type | Form C (SPDT) contacts |
| Power Supply | 24 V DC ±10% (dual redundant inputs) |
| Physical Dimensions | 10.16 cm (H) × 16.51 cm (W) × 22.86 cm (D) |
| Weight | 1.5 kg |
| Operating Temperature | -40°C to +70°C |
| Mounting | Rack-mounted in 3500 Series enclosure |
| Redundancy | Dual power supply, fail-safe relay operation |
| Certifications | CE, UL, API 670, IEC 61508 (SIL 3) |
Key Features and Advantages
High-Density Relay Configuration: The 3500/60 offers 8 relay channels in a compact form factor, maximizing rack space efficiency while supporting multiple protection functions. Each channel can be individually configured for alarm, warning, or shutdown signals, providing flexible protection logic.
Fail-Safe and Redundant Design: With dual redundant power supplies and fail-safe relay operation (normally closed in power loss), the module ensures protective actions remain active during power disruptions. This design meets the most rigorous safety requirements for critical applications.
Hot-Swap Capability: The module can be replaced without interrupting the 3500 Series system, allowing maintenance in live environments. This feature is essential for 24/7 industrial operations where downtime is costly.
Comprehensive Diagnostics: Built-in diagnostics monitor relay health, power supply status, and contact wear, with LED indicators providing real-time status. The module communicates fault information to the 3500 Series rack, enabling proactive maintenance and reducing mean time to repair (MTTR).
Flexible Relay Logic: Supports configurable relay functions (latching, non-latching, time-delay) via BENTLY’s 3500 configuration software, adapting to diverse protection requirements. This flexibility allows customization for specific machinery and process needs.
Rugged Industrial Performance: Engineered to withstand extreme temperatures, vibration, and electromagnetic interference, the 3500/60 ensures reliable operation in harsh environments, including offshore platforms, refineries, and power plants.
Application Areas
The BENTLY 3500/60 is essential for safety-critical applications across industries where equipment protection is non-negotiable:
- Oil & Gas: Triggers emergency shutdowns (ESD) in compressors, pumps, and turbines at refineries, pipelines, and offshore rigs, preventing leaks, overpressures, or mechanical failures.
- Power Generation: Controls turbine trip systems, generator protection, and auxiliary equipment in thermal, hydro, and nuclear plants, maintaining grid stability and preventing catastrophic failures.
- Manufacturing: Manages safety interlocks in high-speed rotating machinery (e.g., motors, fans, extruders) in automotive, chemical, and food processing facilities, ensuring production continuity and operator safety.
- Marine and Aerospace: Used in ship propulsion systems and engine test stands to monitor vibration and trigger protective actions, adhering to strict safety standards.
Specific applications include:
- Turbine Overspeed Protection: Activates shutdown relays when turbine speed exceeds safe limits, preventing mechanical damage.
- Bearing Temperature Alarms: Triggers warning relays for elevated bearing temperatures, enabling proactive maintenance before failure.
- Vibration-Based Shutdowns: Initiates emergency stops when vibration levels indicate severe mechanical issues, such as misalignment or bearing failure.
Related Products
- 3500/61 Relay Module: A 16-channel variant of the 3500/60, offering higher relay density for large-scale protection systems.
- 3500/62T Triple Redundant Relay Module: Provides triple modular redundancy (TMR) for SIL 3 applications, suitable for the highest safety-critical environments.
- 3500/42M Vibration Monitor: Works in tandem with the 3500/60 to analyze vibration data and generate relay triggers for protection actions.
- 3500/22M Keyphasor Module: Supplies rotational reference signals to the 3500/60, enabling phase-locked relay activation for dynamic machinery protection.
- 3500/32M Relay Module: A lower-density (4-channel) variant, ideal for smaller protection systems or distributed installations.
- 3500/92 Communication Gateway: Integrates the 3500/60 with SCADA systems, enabling remote monitoring and control of relay status.
Installation and Maintenance
Pre-installation Preparations:
Before installing the BENTLY 3500/60, ensure the 3500 Series rack is properly grounded and powered. Verify the module’s 24 V DC power supply compatibility and install redundant power cables for reliability. Mount the module in the rack using the provided hardware, ensuring adequate spacing for heat dissipation. Connect field wiring to the module’s terminal blocks, using shielded cables for signal integrity. Configure relay logic and trip thresholds using BENTLY’s 3500 configuration software, matching protection requirements for the specific machinery.
Before installing the BENTLY 3500/60, ensure the 3500 Series rack is properly grounded and powered. Verify the module’s 24 V DC power supply compatibility and install redundant power cables for reliability. Mount the module in the rack using the provided hardware, ensuring adequate spacing for heat dissipation. Connect field wiring to the module’s terminal blocks, using shielded cables for signal integrity. Configure relay logic and trip thresholds using BENTLY’s 3500 configuration software, matching protection requirements for the specific machinery.
Maintenance Suggestions:
- Routine Inspections: Quarterly visual checks of LED indicators to verify relay status and power supply health. Use the 3500 Series software to review relay operation history and identify potential issues.
- Contact Maintenance: Annually inspect relay contacts for wear or arcing, replacing modules if excessive degradation is detected. Clean terminal blocks to prevent corrosion and ensure reliable connections.
- Redundancy Testing: Simulate power supply failures annually to verify redundant power operation, ensuring the module maintains functionality during faults.
- Firmware Updates: Periodically update the module’s firmware via the 3500 Series rack to incorporate bug fixes and new features, following BENTLY’s recommended procedures.
Product Guarantee
Our company provides a 12-month quality warranty for the BENTLY 3500/60, covering hardware defects under normal use. In the event of relay contact failure, power supply issues, or functional anomalies, we offer prompt replacement services to minimize downtime. For legacy or urgent requirements, our global supply chain ensures rapid delivery of the 3500/60 and related spares. Our technical support team assists with installation, configuration, and troubleshooting, ensuring your machinery protection system operates reliably to safeguard critical assets.
For inquiries, contact us via WhatsApp at +86 18859254943 or email at sales@ygplc.com.
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