The 114M5335-01 Low Voltage DC Power Input Module is a core power component of the 3500 Series Machinery Protection System from Bently Nevada, a Baker Hughes business. The 3500 Series is a globally recognized, critical system widely used in industrial applications, particularly for condition monitoring and protection of rotating machinery (such as turbines, compressors, pumps, motors, etc.). By continuously monitoring key parameters like vibration, displacement, speed, and temperature, this system provides predictive maintenance and catastrophic failure protection for large critical assets, ensuring plant safety, stability, and operational efficiency.
Within such a high-reliability monitoring system, a stable, clean, and uninterruptible power supply is the cornerstone for the proper functioning of all monitoring modules, sensors, and communication units. The 114M5335-01 is designed precisely for this purpose. As the input component for the 3500/15 Low Voltage DC Power Supply, it is responsible for safely and reliably introducing external DC power into the rack, providing the energy foundation for the entire monitoring system.
1.2 Product Role and Importance
The 114M5335-01 is not a standalone power supply but a Power Input Module (PIM). Its core functions are:
Interface and Adaptation: It provides standardized physical and electrical interfaces to connect external low-voltage DC power cables to the low-voltage DC power supply module inside the 3500 rack.
Primary Protection: It incorporates protective components (e.g., fuses) as the first line of defense on the power input path, effectively preventing damage to subsequent expensive monitoring modules caused by external power anomalies such as overvoltage or surges.
Signal Indication Pathway: It works in conjunction with the power supply module to ensure power status (e.g., "Supply OK") is correctly reflected on the power supply module's front panel LED.
Structural Integration: Its design allows the power input section to be neatly and safely integrated into the rear of the 3500 rack, maintaining the overall compactness and professionalism of the system.
In simple terms, if the entire 3500 system is likened to an organism with the power supply module as its "heart," then the 114M5335-01 PIM is the "aortic valve" connecting the heart to the external energy source, ensuring energy input while providing crucial isolation and protection.
1.3 Product Version and Compatibility Statement
The datasheet explicitly states that the 114M5335-01 belongs to the new generation 3500/15 power system components and is NOT compatible with the legacy 3500 Low Voltage DC power supplies and PIMs. This is critical information that users must pay close attention to during selection, upgrades, or spare parts procurement. Confusing new and legacy versions may prevent module installation, cause electrical interface mismatches, or even damage equipment.
This product must be paired with the 114M5330-01 Low Voltage DC Power Supply Module to form a complete, new-generation low-voltage DC power solution.
2. System Integration and Compatibility
2.1 Configuration within the 3500 Rack
The power supply design of the 3500 rack embodies high availability and flexibility:
Mounting Slots: The left side of the rack provides two dedicated half-height standard slots (arranged vertically) for power supply modules. Each power supply module slot has a corresponding PIM mounting location directly behind it.
Redundant Configuration: One or two power supply modules (and their corresponding PIMs) can be installed. When two are installed, the supply in the lower slot acts as the primary, and the one in the upper slot acts as the backup. If the primary supply fails or is removed, the backup automatically and seamlessly takes over to power the entire rack, enabling "hot-swap" redundancy and significantly improving system availability. The 114M5335-01, as part of a low-voltage DC power unit, plays an equally vital role in a redundant configuration.
Mixed Configuration Support: The two power supplies in a rack can be any AC/DC combination (e.g., one Universal AC supply + one Low Voltage DC supply). This offers great flexibility for users based on available power sources on-site.
2.2 Associated Components and Related Parts
A complete, functional low-voltage DC power channel requires the协同 work of the following components:
Power Supply Module: 114M5330-01 Low Voltage DC Power Supply Module. This is the core for power conversion.
Power Input Module (PIM): 114M5335-01. The subject of this introduction, responsible for input connection and protection.
Fuse: The PIM contains a replaceable fuse. The datasheet lists dedicated replacement fuse part numbers (e.g., 01720045 for both legacy and new Low Voltage DC PIMs). Regular inspection and replacement of fuses is part of maintenance.
Connector: 118M0915-02 is the replacement connector for DC Power Input Modules, used for repair if the input port is damaged.
Hardware:
131150-01: Power Supply Blank Front Panel (for covering an empty slot when no power module is installed).
128085-01 and 04310251: Power Supply Rear Input Connector Cover and its mounting screws, used to protect the rack's rear opening when a PIM is not installed.
2.3 Critical Incompatibility Reiteration
The datasheet issues clear warnings in multiple sections:
114M5335-01 (New Low Voltage DC PIM) is physically and electrically incompatible with Legacy Low Voltage DC power supplies and PIMs (e.g., part number 133300-01).
Similarly, its 114M5330-01 (New Low Voltage DC Power Supply Module) is also incompatible with legacy low-voltage DC power supply modules.
During expansion or replacement, users must verify whether their existing system uses the new or legacy architecture and procure components of the corresponding version uniformly.
3. Installation, Configuration, and Operation Guide
3.1 Summary of Installation Steps
Planning and Power Down: Confirm the rack layout and power supply configuration plan. Perform safe power-down procedures for the rack to be worked on.
Install the PIM: From the rear of the rack, align the 114M5335-01 module with its dedicated slot (located directly behind the intended power supply module slot) and slide it in smoothly until it fully engages with the backplane connector. Secure with screws if applicable.
Connect Input Cables: Connect the external DC power cables, which meet specifications (20-30Vdc, sufficient capacity), correctly to the PIM's input terminals. Ensure correct polarity (positive/negative) and a secure connection.
Install the Power Supply Module: From the front of the rack, insert the 114M5330-01 power supply module into the corresponding half-height slot (aligned front-to-back with the PIM). Push it in until its front panel is flush with the rack surface.
Power Up and Check: First, energize the external power source. Then, observe the "Supply OK" LED indicator on the power supply module's front panel. A steady illumination (typically green) indicates正常 operation of both the power supply and PIM, and that the system is powered.
3.2 Status Monitoring and Diagnostics
System operational status is primarily monitored via the power supply module's front panel:
"Supply OK" LED: This is the most important status indicator. A steady light indicates input and stable output from that power path. If off, it indicates a fault or no input on that path.
In a redundant configuration, even if one power supply fails (LED off), the entire rack will continue to operate as long as the other supply is functional. However, the faulty power unit (including checking its corresponding PIM, input power, and fuse) should be repaired promptly.
3.3 Maintenance Key Points
Regular Inspection: During planned maintenance, visually inspect the status indicators on PIMs and power supply modules, and check the tightness of input cable connections.
Fuse Replacement: If a power path fails and overvoltage is suspected, after disconnecting all power and eliminating the external fault cause, attempt to replace the fuse inside the PIM following the manual's instructions (using the correct specification spare part, e.g., 01720045). Perform a power-up test afterward.
Cleaning and Dust Prevention: In dusty environments, regularly clean module vents and connector areas with a dry cloth or soft brush to prevent dust accumulation from affecting heat dissipation or causing poor contact.
4. Safety Certifications, Compliance, and Application Fields
4.1 International Standards and Regulatory Compliance
As a Baker Hughes product, the 114M5335-01 module adheres to stringent design and testing standards to meet global market access requirements:
Electromagnetic Compatibility (EMC): Complies with the EU EMC Directive 2014/30/EU and meets standards EN 61000-6-2 (Immunity for Industrial Environments) and EN 61000-6-4 (Emission for Industrial Environments). Ensures stable operation in complex industrial electromagnetic environments without causing interference to other equipment.
Electrical Safety: Complies with the EU Low Voltage Directive 2014/35/EU, designed according to standard EN 61010-1 (Safety requirements for electrical equipment for measurement, control, and laboratory use).
Environmental Directive: Complies with the EU RoHS Directive 2011/65/EU, restricting the use of hazardous substances.
Federal Communications Commission (FCC): Complies with FCC Rules, Part 15, concerning radio frequency radiation limits for digital devices.
4.2 Hazardous Area Certifications
For industries such as oil & gas and chemicals with potentially explosive atmospheres, this module (when installed with its power supply module as specified) holds important explosion-proof certifications:
ATEX / IECEx: Certified as Ex ec nC ic IIC T4 Gc. This signifies it is suitable for use in Zone 2 (where an explosive gas atmosphere is not likely to occur in normal operation and, if it does occur, will exist for a short time only) hazardous areas. It is suitable for Group IIC (gas) environments (e.g., hydrogen, acetylene), with a maximum surface temperature class of T4 (≤135°C), and protection types "Increased Safety" and "Non-sparking" combined.
North American Certification: Complies with requirements for Class I, Division 2, Groups A, B, C, D (Gases) and corresponding standards for Class I, Zone 2 (AEx/Ex ec nC ic IIC T4 Gc).
Critical Installation Condition: The validity of these explosion-proof certifications is strictly dependent on correct installation according to specific drawings provided by Baker Hughes (e.g., drawing numbers 149243 or 149244). Users must adhere strictly.
4.3 Marine Certifications
The module design also considers the demanding requirements of the marine environment, receiving approval from major classification societies such as:
DNV GL: Complies with DNV GL rules for classification of Ships, Offshore Units, and High Speed & Light Craft.
American Bureau of Shipping (ABS): Complies with ABS Rules for Conditions of Classification (Steel Vessels) and (Offshore Units and Structures).
These certifications enable the 114M5335-01 and its 3500 system to be widely used for monitoring power equipment on critical maritime facilities like offshore drilling platforms, FPSOs, LNG carriers, and large cruise ships.
4.4 Typical Application Industries
Oil & Gas: Upstream oilfield compressors, pipeline pumps; downstream refinery centrifugal compressors, steam turbines, gas turbines.
Power Generation: Large steam turbine generators, gas turbine sets, feedwater pumps, fans in power plants.
Chemical & Petrochemical: Various high-speed rotating equipment in process industries.
Marine & Shipbuilding: Main propulsion turbines, generator diesel engines, large pump sets.
Basic Industries: Large critical rotating machinery in metallurgy, paper, water treatment, and other sectors.
In these applications, the reliable DC power system formed with the participation of the 114M5335-01 provides the 3500 monitoring system with 24/7 uninterruptible "guardian energy," acting as one of the unsung heroes safeguarding overall plant safety and profitability.
5. Ordering Information and Technical Support
5.1 Part Numbers and Ordering Codes
Standalone Part Number for this Module: 114M5335-01.
Representation in System Ordering: When ordering a 3500/15 power supply module, the agency approval type is selected via the "CC" portion of the ordering code. For example, when specifying "07 Low Voltage DC Supply" for the bottom slot (B) in a configuration, the system shipment list will include both the 114M5330-01 power supply module and the 114M5335-01 power input module.
5.2 Technical Support and Resources
Technical Documentation Library: Users can log in to bntechsupport.com to access the Bently Nevada Media Library for the latest product manuals, installation drawings, certification guides (e.g., 108M1756 Approvals Quick Reference Guide), and firmware updates.
User Guide: Part number 129767 is the *3500/15 Power Supply User Guide*, providing detailed installation, operation, and maintenance instructions.
Official Support: Contact technical support via the US headquarters phone (+1.775.782.3611) or by visiting Bently.com/support.
