LEOCH LR51.2-100 User Manual

Rack mounted lithium-ion battery pack

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Rack Mounted Lithium-ion Battery Pack

Energy Storage Application

User Manual

Version：V1.2

Released Date：2025-02

Document Number：LR-LFELI-51.2-EN-V1.2-202502

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Page 1 Rack Mounted Lithium-ion Battery Pack Energy Storage Application User Manual Version：V1.2 Released Date：2025-02 Document Number：LR-LFELI-51.2-EN-V1.2-202502...
Page 2 FOREWORD Overview This manual describes product introduction, installation, use, maintenance, etc. Please read this manual before installing the battery and follow the instructions carefully during installation. If there is any confusion, please get in touch with the vendor immediately for advice and clarification. Readers This document provides technical details regarding the tools and infrastructure used by the following users:...
Page 3 Symbol convention The following symbols may appear in this article, and they are represented as follows: Symbol Indication Used as warning in an emergency, if not avoided, it will Dangerous result in death or serious personal injury. Used as a warning of a middle or low potential hazards, if Warning not avoided, it may cause minor or normal injury.
Page 4 General Warning, Dos and Don’ts It is important and necessary to read the user manual carefully (in the accessory pack) before installing or using the battery. Failure to do so or to follow any of the instructions or warnings in this document can result in electrical shock, serious injury, or death, or can damage the battery, potentially rendering it inoperable.
Page 5: Table Of Contents
DIRECTORY Contents 1 OVERVIEW ........................5 1.1 Product specification ......................5 1.2 Product profiles ........................ 5 1.3 Product structure ......................6 2 ILLUSTRATIONS ....................... 7 2.1 Explanation of the structure ..................... 7 2.2 Panel description ......................8 2.3 LCD operation instructions ..................... 14 2.4 The working principle .....................
Page 6: Overview
OVERVIEW Product specification The model of integrated lithium-Ion battery (hereafter referred to as lithium battery or PACK) for Rack-Mounted is shown in figure 1-1-1. 1-1-1 The explanation of the product specification (For example) L R – 51.2 100 ① ② ③...
Page 7: Product Structure
Product structure The appearance of the lithium battery pack is shown in figure 1-3-1, for interface description; please refer to the 2-1-1 panel description". 1-3-1 Product picture (The actual object prevails)
Page 8: Illustrations
ILLUSTRATIONS Explanation of the structure The structure of Lithium-Ion battery pack as shown in figure 2-1-1 1. ADD 2. RESET 3.Breaker 4. P+ 5. P+ 6.ON/OFF 7. RUN 8. ALM 9. SOC 10. RS485 11. CAN 12. RS232 13.PARALLEL 14. P- 15.
Page 9: Panel Description
Panel description The panel of the module of the lithium battery pack, as shown in figure 2-1-1 Module panel description Battery Output Using 4 pin terminal pins, the front of the terminal from left to right is defined as Battery+, Battery+, Battery-, Battery-, which relates to the power transmission line for charging and discharging.
Page 10 Table 2-2-2 The relationship between the capacity of the battery and the light ● indicates LED is ON, ○ indicates LED is OFF. ● ● ● ● ● ● Capacity ● ● ● ● ● ● 83.0%-100% ● ● ● ●...
Page 11 When the battery is at alarm or fault, "ALM" light is red. During charging, the "RUN" light will be flashing. "RUN" and "ALM" can display the battery status, as shown in table 2-2-2 Table2-2-2 The explanation of “RUN” and “ALM” Normal/Alarm/ PACK Status Remark...
Page 12 Normal Flash 3 Alarm Flash 3 Flash 3 Under Discharge Stop discharge Discharge Protection Temperature. Over-current. Short Circuit Stop discharge Fault Protection Stop charge Fault Stop discharge Note: The flashing instructions, flash1-light 0.25s/off 3.75 seconds; flash2-0.5 slight /0.5s off; flash3- 0.5 slight/1.5s off.
Page 13 In parallel, band switch uses six dip switches to address the set cell system. The explanation of its dial switch as shown in table 2-2-3. Table 2-2-3 DIP switch address code Note, ADD 0, reserved exclusively for engineering diagnostics. Address Code PACK Definition Reserve...
Page 14 PACK 38 PACK 39 PACK 40 PACK 41 PACK 42 PACK 43 PACK 44 PACK 45 PACK 46 PACK 47 PACK 48 PACK 49 PACK 50 PACK 51 PACK 52 PACK 53 PACK 54 PACK 55 PACK 56 PACK 57 PACK 58 PACK 59 PACK 60...
Page 15 Battery to battery Inverter to Battery PC to Battery Or PC to Battery RS485A RS232 RS485B, RS485C Definition Definition Definition Definition RS485-B RS485-B RS485-A RS485-A CAN-H CAN-L RS485-A RS485-A RS485-B RS485-B NC=No connect Dry Contact Terminal Dry Contact Terminal: provided 2 ways input and 2 ways output dry contact signal.
Page 16: Lcd Operation Instructions
RESET Press RESET key for 3~6 seconds, then start the device, press the RESET key for 3~6 seconds again, then shut down the device. When the system is running, should there be an exception, use this button to reset the system (press / release) to ensure the stability of the system. LCD operation instructions The LCD display interface is user-friendly, as shown in figure 2-3-1.
Page 17: Operation Procedures
Operation procedures MENU Main menu ENTER Confirm, enter DOWN Page down Return 1) Press “MENU” once, the LCD display screen light up, then the welcome interface will be shown. 2) Followed by the prompt and then click once to enter the main menu bar. 3) Scroll page up and page down “DOWN “，Enter the Menu screen, when the arrow points to the corresponding bar, press Enter “ENTER”...
Page 18 DC input form, the discharge process is completed by connecting the load discharge. The monitoring module has the balance function and power, temperature and SOC. The monitoring module transmits the real-time information collected in the operation of the product through the Telecommute protocol network to the monitoring platform, and the user can observe the operation status of the battery in each group through the display screen.
Page 19: The Product Features
The product features Integrated lithium battery pack for Rack-Mounted has the following remarkable characteristics:  The whole module is non-toxic, non-polluting and environmentally friendly;  The system can automatically manage charge and discharge state and balance current and voltage of each cell; ...
Page 20 Recommended Discharge When operating at higher discharge rates, the battery generates more heat compared to lower discharge rates. This necessitates increased ventilation space around the batteries and, depending on the installation, may require hot air extraction or forced air cooling. It is recommended that for a 100Ah battery the continuous current set at 50A .
Page 21: Installation Guide
INSTALLATION GUIDE Installation precaution notes  Comply with local laws and regulations When operating the equipment, make certain to comply with local laws and regulations.  Personnel requirements Technicians who are responsible for installation and maintenance are required to undertake strict training at first.
Page 22 placed in smaller disposal units, as their interaction with metals is likely to cause short circuits and endanger the system and personal safety. Fire protection The room is prohibited to store flammable, explosive and other dangerous goods, and it should be equipped with effective fire equipment (such as CO fire extinguishers).
Page 23: Power Check
 Environmental Requirements Ambient temperature: ( -10~+40) ℃. Relative humidity level: 5%RH~95%RH, no condensation. Cooling method: air cooling. Height above sea level: match to the standard requirement of GB3859.2-93. Versatility: no vibration and the vertical inclination does not exceed 5º. Pollution level: Level 2.
Page 24: Installation Preparation
Installation preparation  Unpacking and inspection Lithium batteries and accessories use packaging of cardboard boxes or wooden boxes. When unpacking, be careful when dismantling. Inspect the device and accessories according to the package list, to ensure its complete and make certain nothing was damaged during shipping. Before clearing the packaging, make sure that all parts are included.
Page 25 Table 3-2 -1 General purpose tools The appearance of the tools, parameters, and names Adjustable Phillips’s screwdriver Slotted screwdriver Socket wrench wrenches Open-end Double offset ring Diagonal cutting Torque wrench wrenches spanner pliers Wire cutters Needle nosed pliers Marking pen Working gloves Ladder (2m) Flashlight...
Page 26 Table3-2-3 Electrical installation tools The appearance of the tools, parameters, and names Power cable crimp Insulated gloves Wire stripping pliers Electrical tape mg pier...
Page 27 Table 3-2-4 Measuring Tools The appearance of the tools, parameters, and names Clamp the flow table...
Page 28: Mounting The Battery
Mounting the battery Note the allowable installation modes:  Single installation (1)Connect the positive and negative wires of the battery (2)Connect the communication cable between the battery and the inverter (3)The DIP switch of the battery is set to 1 Single installation as shown in figure 3-3-1...
Page 29  Multiple sets of parallel installation (1)The positive and negative battery cables are respectively connected to the BUS (2)Connect the communication cables between the battery room and the battery and inverter (3)Connect the positive and negative BUS to the inverter (4)Set the DIP switch of the battery connected to the inverter to 1, and set the DIP switch of other batteries to 2.3.4.
Page 30: Maintenances
MAINTENANCES In order to ensure the lithium-ion battery pack achieves the longest life cycle, the maintenance technician should carry out regular inspections and maintenance care. The maintenance records should be complete and routine, so that subsequent verification of management parameters of the battery pack can be tracked. Warning: Lithium batteries are costly and can sustain damage from over-discharge or overcharge.
Page 31: Electrical Maintenance
By following these guidelines, you can ensure safe and efficient battery operation while avoiding potential damage caused by operating outside the recommended temperature ranges. The maintenance record should be complete and routine, so that subsequent verification of management parameters of the battery pack can be tracked. Electrical maintenance Maintenance of the electrical parts may refer to table Table4-1 -1 Table of contents for maintenance...
Page 32: Battery Maintenance
If the battery external switch is ON, the RUN light is flashing, and the external power supply voltage is 48V or more, the battery is still unable to turn on, please contact Leoch. 2) The battery can be turned on, but red light is lighting, and cannot charge or discharge. If the red...
Page 33  Charge the battery again. If the charge is too long still fails, contact Leoch. Under voltage alarm  Cell problems, resulting in  Contact Leoch for cell fault. low capacity. The buzzer kept  The battery triggered an  Use anti-theft PC software to remove the...
Page 34  After the over discharge of the battery cell, the battery voltage is lower than 2V without replenishment for a Fail to turn on  Contact Leoch. long time.  The voltage collection cable of the battery cell is loose ...
Page 35: Transportation And Storage
TRANSPORTATION AND STORAGE transportation requirement Battery via UN38.3 (UN38.3: Section 38.3 of the sixth Revised Edition of the Recommendations on the Transport of Dangerous Goods: Manual of Tests and Criteria) and SN/T 0370.2-2009 "Inspection Procedures for Packaging of Dangerous Goods for Export Part 2 Performance Inspection"...
Page 36  Avoid contact with corrosive substances or organic solvents (including gas).  Avoid direct sunlight.  Expired Storage Criteria Storage Recharge Recharge procedure for the single battery temperature interval Every 6 months ＜30°C 1) Discharge with current 0.2C(A) to 0% SOC. 30°C-45°C Every 3 months 2) Charge with current 0.2C(A) per battery for...
Page 37: Environment Protection
ENVIRONMENT PROTECTION Environmental Label The product described in this manual does not contain toxic and hazardous substances or elements. It is a green product. It can be recycled after being discarded and should not be discarded at will. The environmental label shown in Table 6-1. Table6-1-1Environmental label Specification Mark...
Page 38 Appendix: Checklist to determine if the battery has been misused: 1, Is there any mechanical damage to the battery, its terminals? Please note that mechanical damage will void the warranty. 2, Has the battery been stored and installed in its correct orientation? The battery can be mounted either upright or on its side, but it should not be positioned facing downward.