background image

 

 

 
 

BYD Battery-Box HV  
Service Guideline from EFT-Systems 
Version 2.0 
Valid for H 5.1 / 6.4 / 7.7 / 9.0 / 10.2 / 11.5 

 
 

 
 
 
 
 
 

 

 
 
 
 

 

 

Important: The installation and all other kinds of works or measurements in combination with the Battery-Box 
HV are only allowed by professional and qualified electricians. 
This manual is a shortened assistance for the installation of the Battery-Box High Voltage and does not replace

 

     

 

 

 

 

   

 

 

 

 

 

 

 

 

the original manual, which can be found on www.eft-systems.de or www.byd.com. The installation must be

 

 

 

 

 

 

 

 

   

 

 

 

 

 

carried out by a trained and qualified electrician. Attention: High Voltage! Improper handling can cause danger

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

and damage. 

Summary of Contents for BYD Battery-Box H10.2

Page 1: ...tery Box HV are only allowed by professional and qualified electricians This manual is a shortened assistance for the installation of the Battery Box High Voltage and does not replace the original manual which can be found on www eft systems de or www byd com The installation must be carried out by a trained and qualified electrician Attention High Voltage Improper handling can cause danger and da...

Page 2: ...roblem 5 2 6 Current Alarm BatteryDiff 5 2 7 Current Alarm UT OT e g Cell_UT SysTemp 6 2 8 Current Alarm Cell_UV1 Cell_UV2 Cell_UV3 6 2 9 Current Alarm DCBusFault 6 2 10 Voltage measurement 7 2 11 Visual Check 8 2 12 Identifying a faulty module Variant 1 8 2 13 Identifying a faulty module Variant 2 9 3 SERVICE TASKS 10 3 1 BCU replacement 10 3 2 Module Replacement 10 3 3 Charging with external HV ...

Page 3: ...necessary 5 Installation in the Web Interface Installation Config Number of Modules Inverter Manufacturer Update install the latest released software www eft systems de 6 State of charge SOC When installed for the first time the battery will show a predefined SOC of 19 This does not correspond to the actual SOC and the battery corrects th eSOC at the first full charge or discharge The actual SOC o...

Page 4: ...ment Please measure the voltage as shown in step 2 10 15 Check the individual modules variant 2 S ee step 2 13 2 3 Current Alarm BatteryCommErr Error probably caused by a communication failure between two modules or within a module No Name Description 16 Visual check See step 2 11 17 Check the individual modules variant 2 See step 2 12 2 4 Current Alarm MonitorCommErr Error probably caused by the ...

Page 5: ...5 instead 24 Disconnect from the network Please check the local network and completely disconnect the system from the network in order to exclude communication interference caused by switches or WLAN repeaters multicasting 25 Restart the entire system Generally Switch off Battery off Inverter off wait at least 10 minutes Switch on inverter on battery on Kostal the order is important unplug Etherne...

Page 6: ...sary Please go through the above steps especially check communication install updates restart the entire system If not recharge by inverter is not possible a charger may be required Switch off the battery and contact EFT Systems screenshots 30 UV2 If the battery is not being charged by the inverter immediately after restarting then switch off the battery after a few minutes and contact EFT Systems...

Page 7: ...multiplying the number of modules by 50V Nominal system voltage should therefore be in the range 200V 450V If the measured voltage deviates significantly from the nominal value please check the electrical voltage at the individual modules as shown below Positive Negative Measurement 7 ...

Page 8: ...es are logged in the History Alarm If an error is displayed in the Current Alarm or History Alarm then Sub1 shows which module is affected Please note The module number has nothing to do with the stacking order The module numbering is based on the production date and the oldest module has the number 1 The corresponding serial number can be obtained in RUN Data if you select the module number there...

Page 9: ...s OK when battery is on Air Switch up and WIFI available no errors are shown Web Interface Current Alarm Otherwise the battery status is NOT OK OK Add one module at a time adjust module number in web interface and check again If battery status turns to NOT OK then the defect module is identified to be the one that has been added newly NOT OK The defect module is probably one of the 3 modules in th...

Page 10: ...ut into operation not charged discharged the new module can easily be added Otherwise it is basically a module extension In this case please add the new module to the system only when the system has a SOC between 30 and 40 see extension manual 3 3 Charging with external HV charger You will receive a charger from us eg because of the message Cell_UV Each module should be individually connected to t...

Page 11: ...ion B Photo of the BCU Complete BCU inside C Photos of Communication port PIN in the BCU and inverter In the BCU detail photo and on the inverter D D1 D2 D3 D4 D5 Screenshots of the web interface Device Information Installation Config Current Alarm History Alarm Run Data On the web interface E Serial number of the faulty module Note only necessary if a faulty module was found On top of the module ...

Reviews: