B4850 ESS Unit User Manual
B4850 ESS Unit User Manual Content STATEMENT OF LAW ......................................................................................................................................1 SAFETY PRECAUTIONS AND MAINTENANCE INSTRUCTIONS .................................................................... 2 PREFACE .......................................................................................................................................................... 3 1 INTRODUCTION ........................
B4850 ESS Unit User Manual Statement of Law Copyright of this document belongs to Daqin New Energy Tech (Taizhou) 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 permission of Daqin New Energy Tech (Taizhou) Co., Ltd. All Rights Reserved. This product complies with the design requirements of environmental protection and personal safety.
B4850 ESS Unit User Manual Safety Precautions and maintenance instructions 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. To avoid short circuit, please do not connect positive and negative poles with conductor on the same device. Please avoid any form of damage to battery, especially stab, hit, trample or strike.
B4850 ESS Unit User Manual Preface Manual declaration B4850 lithium iron phosphate battery energy storage system can provide energy storage for photovoltaic power generation users through parallel combination. 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 needed.
B4850 ESS Unit User Manual 1 Introduction 1.1 Brief 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. 1.
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. After the battery life is terminated, the battery can continue to be used after it recycled by the professional recycling organization and do not discard it at will. This battery requirements.
B4850 ESS Unit User Manual 2 Product Specification 2.1 Size and Weight Table 2-1 B4850 Device size Product Nominal Voltage Nominal Capacity Dimension Weight B4850 DC48V 50Ah 480×360×90mm ≈22kg 2.2 Performance Parameter Table 2-2 B4850 performance parameter Item B4850 Parameter value Nominal Voltage(V) 48 Work Voltage Range(V) 42~54 Nominal Capacity(Ah) 50 Nominal Energy(kWh) 2.4 Nominal Power(kW) 0.7 Max Power(kW) 2.4 1S Peak Power(kW) 2.
B4850 ESS Unit User Manual Table 2-3 Interface Definition Item Name Definition 1 Power switch 2 Ground connection point OFF/ON, must be in the "ON" state when in use 3 Positive socket Battery output positive or parallel positive line 4 Negative socket Battery output negative or parallel negative line 5 SW (battery wake/sleep switch) 6 SOC 7 ALM 8 RUN 9 CAN/485 10 DRY CONTACT / 11 ADD DIP switch Shell ground connection When the "OFF/ON" switch button is in the ON state, press
B4850 ESS Unit User Manual 1. If the master is the latest B4850 battery with DIP switch: (1) The communication cable from the master CAN IN to the inverter comm port should be the correct one. (2) When the battery works with GOODWE、Solis、LUX、Sofar、DEYE、VICTRON、 IMEON、Sungrow、SMA、RENAC、DELIOS、SAJ(CAN Comm) ,before starting the battery,you need put the master DIP switch "# 3" to the "ON" position (to the top), then turn on the batteries.
B4850 ESS Unit User Manual general firmware,so if customers want to use that,please contact dyness to confirm.
B4850 ESS Unit User Manual Table 2-5 LED status indicators Battery Status Shutdown Standby Charging SOC LED1 LED2 LED3 LED4 ALM RUN / 75%≤SOC≤ 100% off off off off off off ● ● ● ● off Flashing 50%≤SOC＜75% ● ● ● off off Flashing 25%≤SOC＜50% ● ● off off off Flashing 5%＜SOC＜25% ● off off off off Flashing 0%＜SOC≤5% ● off off off Flashing SOC=0 off off off off SOC=100% ● ● ● ● Flashing Flashing/ ● off 75%≤SOC＜ 100% ● ● ● Flashin g off Flashing
B4850 ESS Unit User Manual When the discharging current is greater than the protection value 55A, the battery buzzer alarms and the system stops discharging. Protection is removed after rated time delaying 1min. Caution: The buzzer sound alarm setting can be manually turned off on the background software, and the factory default is on. 2.4.
B4850 ESS Unit User Manual 3 Installation and Configuration 3.1 Ready for installation Safety Requirement This system can only be installed by personnel who have been trained in the power supply system and have sufficient knowledge of the power system. The safety regulations and local safety regulations listed below should always be followed during the installation.
B4850 ESS Unit User Manual 3.1.3 Technical preparation Electrical interface check Devices that can be connected directly to the battery can be user equipment, power supplies, or other power supplies. Confirm whether the user's PV power generation equipment, power supply or other power supply equipment has a DC output interface, and measure whether the DC power output voltage meets the voltage range requirements in Table 2-2.
B4850 ESS Unit User Manual Packing list is as follows: Item Specification Quantity Battery-B4850 48V/50Ah 480×360×90mm 1 Figure Optional: If you need, please contact the dealer to purchase Optional: If you need, please contact the dealer to purchase Power cablepositive Red /25mm2/L2050mm Power cablenegative Black /25mm2/L2050mm Parallel cablepositive Red /25mm2/L215mm 1 Parallel cablenegative Black /25mm2/L215mm 1 Communication parallel cable Black /L250mm/Double RJ45 plug 1 Communica
B4850 ESS Unit User Manual Screw Combination screws M6*14 4 3.1.5 Engineering coordination Attention should be paid to the following items before construction: Power line specification. The power line specification shall meet the requirements of maximum discharge current for each product. Mounting space and bearing capacity. Make sure that the battery has enough room to install, and that the battery rack and bracket have enough load capacity. Wiring.
B4850 ESS Unit User Manual 3.2.2 Mechanical installation Installation method 1: With Cabinet installation Note: Cabinet not supplied with batteries. Scope of certification does not include external cabinets. 1. Place the B4850 unit on the cabinet bracket as shown in the figure and push the device into the cabin at the installation position. (The cabinet structure in the figure is for reference only) Figure3-2 2.
B4850 ESS Unit User Manual 3. Insert the second one B4850 in to the brackets. Figure3-7 4. Stack the required number of battery and bracket combinations as described above, and fasten the top and bottom buckles. Shown as Figure3-8. Figure3-8 3.2.3 Electrical installation Statement ： For Australian market, installations should be conducted in accordance with AS/NZS 3000 and AS/NZS 5139”.
B4850 ESS Unit User Manual The circuit breaker is installed between the battery module and the inverter, as shown in Figure3-9: Inverter Circuit breaker Communication cable-to inverter Power cablenegative Power cablepositive Parallel cablenegative Parallel cablepositive Communication parallel cable Ground cable Master setting 1 Master setting 2 Master setting 3 Master setting 4 Master setting 5 Slave setting 1 Slave setting 2 Figure3-9 Note: 1.
B4850 ESS Unit User Manual 3.2.4 Battery parameter settings on the inverter Max Charging(Bulk) Voltage: 53.5V Absorption Voltage: 53V Float Voltage: 52.5V Shut Down(cut off) Voltage: 47V Shut Down(cut off) SOC: 20% Restart Voltage: 49V Max Charge Current: 25A*battery QTY Max Discharge Current: 25A*battery QTY Capacity：1*B4850=50Ah Batteries and inverters must be installed in accordance with the compatibility listed in the “Dyness Compatible List.xls”; Dyness Compatible List.xls 3.2.
B4850 ESS Unit User Manual 4 Use, maintenance and troubleshooting 4.1 Battery system usage and operation instructions 1 2 3 SW 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.
B4850 ESS Unit User Manual Table 4-1 Battery& Inverter power matching table Hybrid Off-grid Inverter Inverter EPS(backup port) AC Output AC Output Power power ≤1.2kW ≤2.4 kW ≤3.6 kW ≤4.8 kW ≤6.0 kW ≤7.2 kW ≤8.4 kW ≤9.6 kW ≤14.4 kW Charging Equipment Use Discharging B4850 Powerbox Min. parallel number System Energy (kWh) 1 2 3 4 5 6 7 8 12 2.4 4.8 7.2 9.6 12.0 14.4 16.8 19.2 28.8 System Energy (kWh) Type Powerbox F-2.5 Powerbox F-5.0 Powerbox F-7.5 Powerbox F-10.0 2* Powerbox F-7.
B4850 ESS Unit User Manual Statue Alarm category Cell voltage undervoltage Alarm indication RED Buzzer start Processing Start charging 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 No.
DAQIN NEW ENERGY TECH (TAIZHOU) Co.,LTD Address: Building 13, Jiangyan Industrial Park, Sanshui Street, Jiangyan District, Taizhou City, Jiangsu Province,225500 Email: sales@dyness-tech.com Website: www.dyness-tech.com.
