Dyness B4850 User Manual
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Dyness B4850 User Manual

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B4850 ESS Unit
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  • Page 1 B4850 ESS Unit User Manual...

  • Page 2: Table Of Contents

    B4850 ESS Unit User Manual Content STATEMENT OF LAW ............................. 1 SAFETY PRECAUTIONS ........................... 2 PREFACE ................................3 1 INTRODUCTION ............................4 ............................. 4 1.1 B RIEF NTRODUCTION ............................4 1.2 P RODUCT ROPERTIES ..........................4 1.3 P RODUCT IDENTITY DEFINITION 2 PRODUCT SPECIFICATION .........................

  • Page 3: Statement Of Law

    B4850 ESS Unit User Manual Statement of Law Copyright of this document belongs to Jiangsu Daqin New Energy Technology Co., Ltd. No part of this documentation maybe excerpted, reproduced, translated, annotated or duplicated in any form or by any means without the prior written autoorization of Jiangsu Daqin New Energy Technology Co., Ltd.

  • Page 4: Safety Precautions

    B4850 ESS Unit User Manual Safety Precautions Warning ⚫ Please do not put the battery into water or fire, in case of explosion or any other situation that might endanger your life. ⚫ Please connect wires properly while installation, do not reverse connect.

  • Page 5: Preface

    Preface Manual declaration B4850 lithium iron phosphate battery energy storage system can be combined in series or parallel to provide energy storage function for photovoltaic power generation users. Our product can store extra electricity into battery from photovoltaic power generation system in daytime and supply stable power to user’s equipment as power backup at nighttime or any time when...

  • Page 6: Introduction

    B4850 lithium iron phosphate battery system is a standard battery system unit, customers can choose a certain number of B4850 according to their needs, by connecting parallel to form a larger capacity battery pack, to meet the user's long-term power supply needs. The product is especially suitable for energy storage applications with high operating temperatures, limited installation space, long power backup time and long service life.
  • Page 7 B4850 ESS Unit User Manual Battery voltage is higher than safe voltage, direct contact with electric shock hazard. Be careful with your actions and be aware of the dangers. Read the user manual before using. The scrapped battery cannot be put into the garbage can and must be professionally recycled.

  • Page 8: Product Specification

    B4850 ESS Unit User Manual 2 Product Specification 2.1 Size and Weight Table 2-1 B4850 Device size Nominal Nominal Product Dimension Weight Voltage Capacity B4850 DC48V 50Ah 480×360×90mm ≈22kg 2.2 Performance Parameter Table 2-2 B4850 performance parameter Item B4850 Parameter value...

  • Page 9: Dip Switch Definition And Description

    B4850 ESS Unit User Manual Table 2-3 Interface Definition Item Name Definition OFF/ON, Power switch must be in the "ON" state when in use Ground Shell ground connection connection point Positive socket Battery output positive or parallel positive line Negative socket...
  • Page 10 B4850 ESS Unit User Manual 1. If the host is the latest B4850 battery with DIP switch: 2. If the host is a B4850 battery module without the DIP switch: (1) The communication cable from the host CAN IN to the inverter comm port should be the correct one.
  • Page 11 B4850 ESS Unit User Manual Figure 2-2 CAN/485 interface definition Front Plug Socket of communication port CAN/485 Table 2-4 Pin Definition Foot position Color Definition PIN1 Orange/white 485A PIN2 Orange XGND PIN3 Green/white 485B PIN4 Blue CANH PIN5 Blue/white CANL...

  • Page 12: Battery Management System(Bms)

    B4850 ESS Unit User Manual Table 2-5 LED status indicators Battery LED1 LED2 LED3 LED4 Status Shutdown ● ● ● ● 75%≤SOC≤100% Flashing ● ● ● Flashing 50%≤SOC＜75% ● ● 25%≤SOC＜50% Flashing Standby ● 5%＜SOC＜25% Flashing ● 0%＜SOC≤5% Flashing Flashing...

  • Page 13: Temperature Protection

    B4850 ESS Unit User Manual Caution: The buzzer sound alarm setting can be manually turned off on the background software, and the factory default is on. 2.4.3 Temperature Protection Low/Over temperature protection in charging： When battery’s temperature is beyond range of -5 ℃ ~+55 ℃ during charging, temperature protection is activated, device stops charging.

  • Page 14: Environmental Requirements

    B4850 ESS Unit User Manual 3.1.1 Environmental requirements Working temperature: -20 ℃ ~ +55 ℃ • Charging temperature range is 0℃~+55 ℃, • Discharging temperature range is -20 ℃ ~+55 ℃ Storage temperature: -10 ℃ ~ +35 ℃ Relative humidity: 5% ~ 85%RH...

  • Page 15: Unpacking Inspection

    B4850 ESS Unit User Manual ⚫ Verify that the maximum operating current of the battery-powered user equipment (inverter DC input) should be less than the maximum discharge current of the products used in Table 2-2. The security check ⚫ Firefighting equipment should be provided near the product, such as portable dry powder fire extinguisher.

  • Page 16: Engineering Coordination

    B4850 ESS Unit User Manual Black Communication /L250mm/Double parallel cable RJ45 plug Black Communication /L2000mm /Double cable-to inverter RJ45 plug Ground wire L500mm,4mm² User Manual B4850 User manual User Guide B4850 User guide Combination screws Screw M6*14 3.1.5 Engineering coordination Attention should be paid to the following items before construction: ⚫...

  • Page 17: Equipment Installation

    3.2.1 Installation preparation 1. Prepare equipment and tools for installation. 2. Check the B4850 unit and confirm that the ON/OFF switch is in the "OFF" state to ensure the device is shut off.. 3.2.2 Mechanical installation Installation method 1: With Cabinet installation 1.

  • Page 18: Electrical Installation

    B4850 ESS Unit User Manual Installation method 2: With Simple bracket installation 1. Place the B4850 and brackets as shown in the figure3-4, and insert the B4850 into the brackets.Use 4 screws to fix the module on the front bracket.
  • Page 19 B4850 ESS Unit User Manual It is better to add a circuit breaker between the inverter and the battery system. The selection of the circuit breaker requires: Voltage: U>60V Inverter power Current: I = The circuit breaker is installed between the battery module and the inverter, as shown in Figure...

  • Page 20: Battery Parameter Settings On The Inverter

    3.2.5 Register on the website after installation After the battery system installation is completed and the running is normal, you need to log in to the DYNESS official website to register the product installation and use information to make the product warranty effective.

  • Page 21: Use, Maintenance And Troubleshooting

    B4850 ESS Unit User Manual 4 Use, maintenance and troubleshooting 4.1 Battery system usage and operation instructions After completing the electrical installation, follow these steps to start the battery system. Refer to the description of the DIP switch of 2.3.1 to prepare the battery module before starting up, then press the ON/OFF button to the ON position, next press and hold the SW button for 3 seconds.

  • Page 22: Alarm Description And Processing

    4.2 Alarm description and processing When protection mode is activated or system failure occurred, the alarm signal will be given through the working status indicator on the front panel of the B4850. The network management can query the specific alarm categories.

  • Page 23: Analysis And Treatment Of Common Faults

    B4850 ESS Unit User Manual Alarm Statue Alarm category Processing indication Cell voltage undervoltage Buzzer Start charging start 4.3 Analysis and treatment of common faults Analysis and treatment of common faults in the Table 4-3: Table 4-3 Analysis and treatment of common faults...
  • Page 24 Jiangsu Daqin New Energy Tech Co., Ltd Address: 158# South Ji'an Road, Hi-Tech District, Yangzhou City, Jiangsu Province, China, 211400. Email: sales@dyness.net Website: http://www.dyness-tech.com.cn...

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