Liebert LDM user manual Large Interface Board LIB, Branch Circuit Monitoring Sensor Module BSM

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Major Components

3.3Large Interface Board (LIB)

The LIB provides the voltage attenuators for Square D I-Line panelboard voltages. The LIB monitors the current for the I-Line panelboard. The panelboard input CTs are connected to the LIB board. There are 42 CT inputs provided. The current inputs require the use of 1A secondary CT.

! WARNING

Before connecting a large CT to the PBVI board, note the CT MUST have 1A secondary. Connecting a 5A secondary type CT will damage the board and the CT.

To ensure the proper current ratio and accuracy, the CTs should be purchased through Emerson Network Power. See Table 1 for details. Contact your local Emerson Network Power representative or call Liebert Services at 1-800-LIEBERT (1-800-543-2378).

There can be up to two LIB boards per control board for a maximum total of sixteen 5-wire output breakers.

3.4Branch Circuit Monitoring Sensor Module (BSM)

The BSM—more commonly referred to as the CT Module—is packaged in an epoxy-filled plastic assembly. There are two designs: one for 1" center-to-center GE panelboards and one for 3/4" center- to-center for Square D panelboards. Each contains twenty-one 50A CTs that are rated up to 50A RMS 50/60 Hz.

NOTE

The diameter of each CT hole is 0.354" (9mm). Wire diameter and thickness of insulation cannot be larger than the CT opening.

For the 42-breaker position in-line panel boards, the Square D CT Module is designed to interlock end to end to maintain alignment between the breaker poles and the CT Module.

3.5Power Supply Assembly (with EMI Filter)

The power supply assembly is 120-240VAC (range +6, -13%) 50/60 Hz input, 24VDC output to provide logic level power for the BCB.

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Contents Liebert Distribution Monitoring LDM Page Table of Contents Tables Safety Instructions Glossary of Abbreviations Following abbreviations are used in this manualProduct Overview Branch Circuit Monitoring Control Board BCB Major ComponentsPanel Board Voltage-Current Board Pbvi Part Number Description Phase CT Ground CT Neutral CTCT matrix for the Liebert LDM Large Interface Board LIB Power Supply Assembly with EMI FilterBranch Circuit Monitoring Sensor Module BSM Installation Installing a BSM CT Module AssemblyConnecting Panelboards a and B Installing a Solid-Core Current Transformer Connecting a Current Transformer to the Pbvi Board Pin WiringConnector P4 B Wiring configuration of large branch circuit breakersConfiguration 1 Four Modules Connector P3 a CT Table for Pbvi BoardLB11 LB12 LB13 Four CTs Ground CT Three phases Neutral Connecting a Current Transformer to the LIB BoardFirst Breaker Second Breaker Wiring configuration for LIB CT Table for LIBWiring configuration for LIB2 Operation Parameters monitored for breakersAlarms Alarm conditions and factory setpointsCommunication LDM Setup Port ConnectionModbus Connection Starting the Monitor Tool Using the Monitor ToolDownloading the Software COM port ConnectPanel Status and Real-Time Clock Monitor Menu OptionsMonitor menu options Main Breaker Status Mode ButtonsMonitor mode buttons Breaker StatusTo Connect via COM Port To Work in Offline Mode Using the Configuration ToolStarting the Configuration Program COM port Work OfflineMain Configuration Window Overview Overview of main Configuration windowInstall Configuration Changes in the Unit Load a Configuration File from DiskSave the Configuration File to Disk Select Breakers to View Select Panel to ViewPanel Breakers view Auxiliary Breakers view Edit the Panel Properties or Set a Password Edit the Liebert LDM Unit PropertiesEdit the Breaker Properties Parameter Description To make a changeAdd or Delete a Circuit Breaker Adding a Circuit BreakerAdding a Subfeed Breaker Delete a Breaker Upgrading the Firmware Operation Progress Failed = Specifications ElectricalTroubleshooting / Faqs Page Ti n Ne tIti That

LDM specifications

Liebert LDM (Liebert Digital Monitor) is an advanced thermal management solution, specifically designed to enhance the performance and reliability of critical infrastructure systems. This innovative product from Vertiv caters to the growing demand for efficient cooling solutions in data centers, telecommunication sites, and other facilities requiring precise environmental control.

One of the standout features of the Liebert LDM is its advanced monitoring capabilities. The device is equipped with numerous sensors that measure crucial parameters, including temperature, humidity, and airflow. These measurements help operators analyze the cooling efficiency of their systems and ensure optimal operating conditions. The real-time data provided by the Liebert LDM allows for proactive maintenance, reducing the risk of equipment failure due to overheating or improper humidity levels.

The Liebert LDM employs sophisticated algorithms to optimize cooling performance. Its ability to analyze data trends plays a vital role in preventing hot spots and ensuring uniform cooling throughout the facility. This technology enhances the overall efficiency of cooling systems, which translates into reduced energy consumption and lower operating costs.

Another key characteristic of the Liebert LDM is its modular design. This flexibility allows users to scale their monitoring capabilities based on the size and complexity of their cooling setup. Whether a small server room or a large data center, the Liebert LDM can be tailored to meet specific operational needs.

Integration is another core advantage of the Liebert LDM. It seamlessly connects with various management systems and can be monitored through user-friendly interfaces. This interoperability ensures that facility managers can easily track performance metrics and integrate the Liebert LDM into their existing operational protocols.

The construction of the Liebert LDM is designed with durability and longevity in mind. Built to withstand the rigors of commercial use, the device features robust housing and weather-resistant components. This resilience ensures that the Liebert LDM remains a reliable tool within critical environments.

In summary, the Liebert LDM is a sophisticated thermal management solution combining precision monitoring, energy efficiency, modular flexibility, seamless integration, and robust design. As technology evolves, maintaining optimal environmental conditions becomes increasingly crucial. The Liebert LDM addresses these challenges, ensuring that critical systems operate reliably and efficiently in the face of rising demands.
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