Narada NPFC Series Operation Manual

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Contents

Narada NPFC Series Operation Manual Manual pdf 5 page image

NPFC Series LiFePO4 Battery Module for Telecom07 08RS232 communication port just for software upgrade now.communicationportRS2325It is adopting RS485 series port communication patternto upload data. Contents of data transmit includeBMS parameters, battery running status, alarms, etc.Communication of modules connected in parallel isavailable through RS485.Press RESET button when abnormity occurs to assurestability of battery performance.Battery BMS can be removable and replace easily throughthis.The side mounting is used to wall-handing installation battery.Also use the ear to handle the battery.Failure Alarm: indicate BMS or battery fail including butnot limited to charge and discharge MOS fail, cell voltageunder 0.5V, NTC disconnect, and so on.When turn-off, battery get into sleep mode, and cut-offoutput, the alarm output also will be stopped.Using terminals with four or two cores. Polarities are +, -,+, - from left to right. The two ‘+’ and ‘-’ are equal relatively.Detailed information is shown in Fig. 1-2.Connect earth by flexible cable above GREEN Sheathed,UL94-V0, gauge of the grounding wire should be equal toor greater than the gauge of the battery return wire.The handle is used to push and pull the battery easilyfrom battery cabinet.Not recommend use handle to handing the battery.Detailed information is shown in Annexed Table 3.Dry contactindicatorsTerminals forbattery outputDisplay batteryinformationGround screwhandleON/OFF switchcommunicationportReset buttonRemovablePanelWall-hanginginstallationRS485RESETRemovablePanel(optional)SidemountingDrycontactBatteryOutputLCD(optional)GNDHandlePowerswitch6810911121471315Working PrincipleThe NPFC battery system mainly includes Lithium battery pack, battery protection, cell balancingunit, monitoring module and charge-discharge management module for optional. Its schematicdiagram shown in Figure 1-4Fig. 1-4 Schematic DiagramLFP cellsCell protectionCell balancingMonitoringChemical power, energy storage and power supply components.Protect LFP cells against overcharge, over discharge, over current, overtemperature, short circuitEqualization LFP cells for cells unbalancedSupport centralized monitoring system (optional according to customerrequirements)NPFC battery working principle:DC power input rectifier after filter, DC divided two circuits, one circuit directly supply the load, anothercircuit charge lithium battery. When grid power on, the system supplies the loads and charging insidelithium batteries; When grid power failure, lithium inside system supply DC power to the load, toensure uninterrupted power supply as power system.Battery Management System (BMS)Smart BMS technology is adopted for battery modules of NPFC series to assure smart automaticmanagement for batteries. Features of BMS are shown as below: