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B4850 ESS Unit User Manual                                                                  

12 

 

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 
Elevation: no more than 4000m 
Operating environment: Indoor installation, sites avoid the sun and no wind, no 
conductive dust and corrosive gas.  
And the following conditions are met: 

 

Installation location should be away from the sea to avoid brine and high humidity 
environment. 

 

The ground for product arrangement shall be flat and level 

 

There is no flammable explosive materials near to the installation site. 

 

The optimal ambient temperature is 15

 ~ 30 

 

 

Keep away from dust and messy zones 

 
3.1.2  Tools and data 

Hardware tool 
Tools and meters that may be used are shown in table 3-1. 

Table 3-1 Tool instrument 

Name 

Screwdriver

Slotted

Phillips

 

Multimeter 

Torque wrench 

Clamp current meter 

Diagonal pliers 

Insulation tape 

Pointed nose pliers 

Temperature meter 

Pliers to hold the wire 

Anti-static bracelet 

Stripping pliers 

Cable tie 

Electric drill 

Tape measure 

 

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. 

 

Confirm that the maximum discharge current capability of the DC power interface of 
the user's photovoltaic power generation equipment, power supply or other power 
supply  equipment  should  be  greater  than  the  maximum  charging  current  of  the 
products used in Table 2-2

.

 

If the maximum discharge capacity of the DC power interface of the user's 
photovoltaic power generation equipment is less than the maximum charging 
current of the products used in Table 2-2, the DC power interface of the user's 
photovoltaic power generation equipment shall have a current limiting function to 

ensure the normal operation of the user’s equipment.

 

Содержание B4850

Страница 1: ...User Manual B4850 ESS Unit ...

Страница 2: ...2 4 4 Other Protection 11 3 INSTALLATION AND CONFIGURATION 11 3 1 READY FOR INSTALLATION 11 3 1 1 Environmental requirements 12 3 1 2 Tools and data 12 3 1 3 Technical preparation 12 3 1 4 Unpacking inspection 13 3 1 5 Engineering coordination 14 3 2 EQUIPMENT INSTALLATION 15 3 2 1 Installation preparation 15 3 2 2 Mechanical installation 15 3 2 3 Electrical installation 16 3 2 4 Battery parameter...

Страница 3: ...tions Customer can check the related information on the website of Jiangsu Daqin New Energy Technology Co Ltd when the product or technology is updated Web URL http www dyness tech com cn Please note that the product can be modified without prior notification Revision History Revision NO Revision Date Revision Reason 1 0 2019 04 24 First Published 1 1 2019 05 23 1 Add simple bracket installation i...

Страница 4: ...ompany s technical support Device breakdown due to unauthorized operation will not be covered under warranty Caution Our product have been strictly inspected before shipment Please contact us if you find any abnormal phenomena such as device outer case bulging The product shall be grounded properly before use In order to ensure your safety To assure the proper use please make sure parameters among...

Страница 5: ...tra 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 It can improve the efficiency of photovoltaic power generation and increase the electric power efficiency by peak load shifting This user manual details the basic structure parameters basic procedures and methods of insta...

Страница 6: ...c non pollution environment friendly battery Anode materials are lithium iron phosphate LiFePO4 safer with longer life span Carries battery management system with better performance possesses protection function like over discharge over charge over current abnormal temperature Self management on charging and discharging Single core balancing function Intelligent design configures integrated inspec...

Страница 7: ... 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 product meets European directive requirements This battery product passed the TUV certification test Dangerous goods warning label on the top o...

Страница 8: ... 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 64 1S Peak Current A 55 Charging Current A 25 Discharge Current A 25 2 3 Interface Definition This section elaborates the interface functions of the front interface of the device Figure2 1 The sketch...

Страница 9: ...er the condition of trigger protection is released it can be automatically closed 8 RUN Green light flashing during standby and charging mode Green light always on when discharging 9 CAN 485 Communication cascade port support CAN RS485 communication factory default CAN communication 10 DRY CONTACT 11 ADD DIP switch 2 3 1 DIP switch definition and description Table 2 4 Interface Definition DIP swit...

Страница 10: ... to ON the DIP switch of the slaves need to turn the 4 to ON 7 The DIP switch of the slaves no need to be changed 8 If the energy storage system has only one B4850 it is the host itself and still follow the above steps Note For more information of matching inverter brands please subject to the latest document The list of compatibility between Dyness ESS and Inverters 2 If the host is a B4850 batte...

Страница 11: ...IN2 Orange XGND PIN3 Green white 485B PIN4 Blue CANH PIN5 Blue white CANL PIN6 Green Reserve PIN7 Brown white XIN PIN8 Brown Reserve PIN9 Orange white Reserve PIN10 Orange XGND PIN11 Green white Reserve PIN12 Blue CANH PIN13 Blue white CANL PIN14 Green Reserve PIN15 Brown white XOUT PIN16 Brown Reserve Front Plug Socket of communication port CAN 485 ...

Страница 12: ...ttery Management System BMS 2 4 1 Voltage Protection Low Voltage Protection in Discharging When any battery cell voltage or total voltage is lower than the protection value during discharging the over discharging mode is activated and the battery buzzer makes an alarm sound Then battery system stops supplying power to the outside When the voltage of each cell back to rated return range the protect...

Страница 13: ...xternal loads and power supply and no external communication for over 72 hours device will dormant standby automatically Caution Battery s maximum discharging current should be more than load s maximum working current 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 hav...

Страница 14: ...rs Temperature meter Pliers to hold the wire Anti static bracelet Stripping pliers Cable tie Electric drill Tape measure 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 D...

Страница 15: ...ations to prevent from being exposed to sun and rain Before unpacking the total number of packages shall be indicated according to the shipping list attached to each package and the case shall be checked for good condition In the process of unpacking handle with care and protect the surface coating of the object Open the package the installation personnel should read the technical documents verify...

Страница 16: ...g capacity Make sure that the battery has enough room to install and that the battery rack and bracket have enough load capacity Wiring Make sure the power line and ground wire are reasonable Not easy to short circuit water and corrosion Communication parallel cable Black L250mm Double RJ45 plug 1 Communication cable to inverter Black L2000mm Double RJ45 plug 1 Ground wire L500mm 4mm 1 User Manual...

Страница 17: ...r 2 Battery module total positive cable installation 3 Battery module total negative cable installation 4 Connect the communication cable from the master CAN IN to the inverter 5 Turn on the Power switch and wake up system by SW button 6 Close the DC breaker between inverter and battery 7 Turn on the inverter and check the communication between inverter and battery system 3 2 1 Installation prepar...

Страница 18: ...er resistor file probe the same end of positive and negative pole if the resistor shows infinity means that the cable is available After visual testing of power line is connection the positive and negative poles of the battery shall be connected respectively to the positive and negative poles of the opposite terminal 1 Place the B4850 and brackets as shown in the figure3 4 and insert the B4850 int...

Страница 19: ... Voltage U 60V Current I Inverter power 45V The circuit breaker is installed between the battery module and the inverter as shown in Figure 3 8 No 1 No 2 No 3 No 4 No 5 No 6 Figure3 8 Power cable negative Power cable positive Parallel cable positive Parallel cable negative Communication cable to inverter Communication parallel cable Circuit breaker Inverter ...

Страница 20: ...ject to the latest document The list of compatibility between Dyness ESS and Inverters 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 3 2 5 Register on t...

Страница 21: ... be eliminated please contact the dealer timely 2 Use a voltmeter to measure whether the voltage of the circuit breaker battery access terminal is higher than 42V and check whether the voltage polarity is consistent with the inverter input polarity If the circuit breaker battery input terminal has a voltage output and is greater than 42V then the batterybegun to work normally 3 After confirming th...

Страница 22: ...tery should be 0 5C d The recommend maximum depth of discharge DOD of Battery PACK is no more than 80 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 If the fault such as single cell over...

Страница 23: ... power supply time is too short Battery capacity become smaller Storage battery replacement or add more modules 4 The battery can t be fully charged to 100 Charging voltage is too low Adjust charging voltage at 53 5V or 54V 5 The power cable sparks once power on and ALM light RED Power connection short circuit Turn off the battery check the cause of the short circuit 6 Communication fault The DIP ...

Страница 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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