Description
Bently Nevada 3500/15 114M5335-01 Low Voltage DC Power Input Module: Full Technical Profile
Product Introduction
The Bently Nevada 3500/15 114M5335-01 is a half-height low-voltage DC Power Input Module (PIM) purpose-built for the Bently Nevada 3500 Series Machinery Protection System. As a core power delivery unit for the 3500 rack, it accepts 20–30 Vdc industrial input power and converts it into tightly regulated, noise-isolated output rails to power all monitoring, interface and relay modules installed in the chassis.
Designed for deployment in harsh, high-reliability industrial environments, this module supports both single and dual redundant power configurations, and features a true hot-swappable form factor that allows on-site engineers to replace the unit without powering down the entire rack or interrupting active machinery protection functions. Its compact half-height footprint occupies only one standard 3500 series slot, leaving more rack space available for additional monitoring channels to expand system measurement capacity.
114M5335-01
Key Technical Specifications
| Specification | Technical Details |
|---|---|
| Module Form Factor | Half-height, single-slot 3500 rack mount design |
| DC Input Voltage Range | 20–30 Vdc nominal, 18–32 Vdc absolute operating limit |
| Maximum Continuous Output Power | 75 W, sufficient to support a fully populated 14-slot 3500 rack |
| Output Regulation Accuracy | ±1% across full input voltage and load variation range |
| Operating Temperature | -25°C to +70°C (-13°F to +158°F) |
| Vibration Tolerance | 10–2000 Hz, 2g peak, compliant with API 670 machinery protection standards |
| EMC Immunity | Meets IEC 61000-4 ESD, surge, fast transient burst and radiated RF requirements for industrial zones |
| Module Dimensions (H×W×D) | 120.7 mm × 25.4 mm × 215.9 mm (4.75 in × 1.0 in × 8.5 in) |
| Net Weight | 340 g (0.75 lbs) |
| Front Panel Status Indicator | Solid green = normal operation; Flashing red = input under/over voltage; Off = no valid input power |
| Protection Features | Built-in overcurrent, overvoltage and overtemperature shutdown with automatic fault recovery |
Typical Industrial Applications
This module is the preferred power solution for sites where 24 Vdc is the standard control system power distribution infrastructure, and zero unplanned protection system outage is a non-negotiable operational requirement:
- Oil & Gas Upstream & Midstream: Offshore platform rotating equipment, onshore pipeline pump stations and LNG compressor trains, where 24 Vdc is the native safety-rated power supply for all hazardous-area instrumentation.
- Manufacturing & Process Plants: Large-scale centrifugal fans, blowers and process compressors in chemical, pharmaceutical and food processing facilities, supporting continuous vibration and position monitoring without reliance on AC utility feeds.
- Power Generation Auxiliaries: Boiler feed pumps, induced draft fans and circulating water pumps in thermal power plants, paired with UPS-backed 24 Vdc power systems to maintain protection functionality during AC utility disturbances.
- Heavy Industrial Machinery: Steel mill process rolls, mining conveyor drive gearboxes and large reciprocating compressors, where rugged, wide-input DC power tolerance eliminates downtime caused by transient voltage dips on plant DC networks.
Critical Technical Pitfalls to Avoid
- Cross-Model Compatibility Errors: The 114M5335-01 low-voltage DC PIM cannot be directly substituted for high-voltage DC or universal AC power modules in the 3500/15 family. Mismatched module installation will trigger immediate input fuse clearing and may damage the 3500 rack backplane.
- Overloading Output Capacity: When configuring a fully loaded rack with 12+ monitoring modules, always calculate total system power draw in the 3500 configuration software. Exceeding the 75 W maximum output rating will cause uncommanded module resets during peak load conditions.
- Improper Redundancy Wiring: For dual redundant power setups, never connect both PIM units to the same 24 Vdc power source. Separate, electrically isolated DC feeds are required to deliver true fault tolerance against single power supply failures.
- Ignoring Degradation Warning Events: A slow, gradual drift in output voltage recorded in the 3500 system event log is an early indicator of internal component aging. Delaying preventive replacement can lead to sudden, unannounced power loss during critical production cycles.
- Unfiltered Input Power Connection: Directly connecting the module to an unconditioned 24 Vdc motor control bus without a dedicated EMI filter will introduce electrical noise into the system, causing intermittent false vibration readings on nearby monitoring channels.
Related Product Recommendations
- 114M5330-01 24 Vdc Low Voltage DC Power Supply Unit: The matching upstream power supply for the 114M5335-01, purpose-calibrated to deliver clean, regulated 24 Vdc input with full overvoltage protection, forming a complete end-to-end DC power chain for the 3500 rack.
- 3500/22M 146031-02 Transient Data Interface Module: When paired with the 114M5335-01, this TDI module ensures high-speed transient vibration data capture remains fully operational even during brief AC power outages, eliminating missing critical fault waveform records during machinery trips.
- TRICONEX 3009 TMR Main Processor Module: For sites integrating 3500 protection data into a triple modular redundant safety system, the 114M5335-01’s 24 Vdc native input design allows seamless, low-noise power integration with the Triconex safety controller’s DC power architecture.
Start Chat
