📘 Bently Nevada 78462-01 V Alarm Relay Output Module — Product Overview
The Bently Nevada 78462-01 V Alarm Relay Output Module is a precision industrial module designed to provide reliable alarm and trip outputs within the 3300 Series Machinery Protection System. This module is engineered for use in critical rotating equipment monitoring, converting processed signals from vibration, axial position, and speed sensors into actionable relay outputs for machine protection and safety systems. Its robust construction ensures dependable performance in harsh industrial environments such as power generation, oil & gas, petrochemical plants, and heavy machinery facilities.
The 78462-01 module is a rack-mounted interface component that works seamlessly within the 3300 Series monitoring platform. It functions as the final stage in the signal chain, translating condition monitoring data into digital relay actuations. This allows operators and automated control systems to respond quickly to alarm or danger thresholds, preventing catastrophic machinery failures.
🔧 Key Features
- Alarm & trip output functionality: Provides isolated relay outputs for Alert and Danger conditions
- Plug-in module design: Fits standard 3300 Series rack slots for easy installation
- Redundant relay circuits: Ensures continued protection in case of module fault
- High durability: Designed for industrial ambient conditions, –20°C to +65°C
- Isolation & signal integrity: Provides galvanic isolation between input channels and relay outputs
- API 670 compliant: Meets industry standards for machinery protection
- Visual status indicators: LEDs display relay actuation and fault conditions
- Maintenance-friendly: Hot-swappable in powered-down racks; minimal calibration required
📊 Product Parameters & Datasheet Table
| Parameter | Specification / Description |
|---|---|
| Model Number | 78462-01 V |
| Module Type | Alarm Relay Output Module |
| Rack Compatibility | 3300 Series Monitoring System |
| Input Signal Source | Processed vibration, axial position, speed, or temperature signals |
| Relay Type | SPDT / DPDT (configurable per channel) |
| Number of Relays | 4–8 per module depending on configuration |
| Output Rating | 2 A @ 30 VDC / 0.5 A @ 125 VAC (typical) |
| Isolation | Channel-to-channel galvanic isolation |
| Operating Temperature | –20°C to +65°C |
| Compliance | API 670, CE, IEC industrial standards |
| LED Indicators | Alarm, trip, module fault |
| Power Supply | Supplied via 3300 Series backplane |
| Dimensions | Standard 3300 Series rack slot size |
| Applications | Turbines, compressors, pumps, blowers, motors, gearboxes |
| Maintenance Notes | Visual inspection of LEDs, relay test using simulated input conditions |
🛠 Installation & Maintenance Overview
Installation of the 78462-01 module involves inserting the card into an available 3300 Series rack slot and connecting output relays to the machinery protection circuits. The module is designed to be hot-swappable in powered-down racks, reducing downtime during replacement or maintenance. Maintenance involves visual inspection of LEDs for operational status, periodic relay testing using simulated inputs, and ensuring clean backplane connections. The module requires minimal calibration and is engineered for long-term reliability.
🔗 Helpful Links
- System components, parts, and replacements:
https://www.stardcsplc.com/ - Related industrial automation modules:
https://www.stardcsplc.com/
📦 Recommended Similar Models
| Model | Description |
|---|---|
| Bently Nevada 78463-01 | High-density alarm relay output module for 3300 Series |
| Bently Nevada 78464-01 | Redundant relay output module with extended trip functionality |
| Bently Nevada 3500/42M | High-performance monitor module with relay output options |
| Bently Nevada 3300/22M | Vibration monitor module with configurable alarm outputs |
| Bently Nevada 78465-01 | Compact alarm relay module for single-machine applications |
This module is an essential component for robust machinery protection systems, ensuring immediate response to critical operating conditions and extending the life of rotating assets.
