123electric Smart BMS gen 3 Скачать руководство пользователя страница 4 | Manualshive

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123electric
The Netherlands
E-mail: [email protected]
www.123electric.eu

Package contents

The standard 4 cells/12V package contains:

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1x Begin Cell Board

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1x End Cell Board

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2x Between Cell Boards

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2x Dual range current sensors 20A/500A

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Piece of 0.75 mm² wire for the interconnections

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Connector unlock tool

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Содержание Smart BMS gen 3

Страница 1: ...123electric The Netherlands E mail info 123electric eu www 123electric eu Manual Rev 1 ...

Страница 2: ...Keep the batteries in perfect condition 14 Recommended threshold values for different cell chemistries 14 The App 15 First connection 15 App Settings 15 Dashboard 17 Battery details 18 Algorithm 19 SOC calculation 19 Charge and discharge load relay 19 Module details 20 Begin Board 20 Between Boards 21 End Board 22 Troubleshooting 23 Appendix 24 a Only one current sensor or cable 24 b Multiple batt...

Страница 3: ...such batteries are charged very carefully In other words they can easily be over charged or over discharged Cell temperature and current are also very important in order to guarantee a long life The 123 SmartBMS Battery Management System is primarily intended for prismatic cells but can also be adapted by the end user for other cell shapes provided the cell voltage is in the working voltage range ...

Страница 4: ...ic eu www 123electric eu Package contents The standard 4 cells 12V package contains 1x Begin Cell Board 1x End Cell Board 2x Between Cell Boards 2x Dual range current sensors 20A 500A Piece of 0 75 mm wire for the interconnections Connector unlock tool ...

Страница 5: ...Board current average with standby Bluetooth 1 6mA End Boards current average when device connected to Bluetooth 11 0mA Maximum current through charge load signal relays on End Board 2A 30VDC 1A 60VDC Dual range current sensor measurement specifications 20A measurement resolution 20A measurement resolution Blind spot around zero Max measured current 50 mA 1 25A 300 mA 500 A Dual range current sens...

Страница 6: ...6 123electric The Netherlands E mail info 123electric eu www 123electric eu Schematic overview ...

Страница 7: ... to the solar panels MPPT charger and the load Step 3 Mount the cell boards on the battery pack Make sure the Begin Board is mounted on the minus side of the total battery pack This is the cell where the big black minus cable leaves the battery pack Make sure the End Board is mounted on the plus side of the battery pack This is the cell where the big red plus cable leaves the battery pack Step 4 5...

Страница 8: ...8 123electric The Netherlands E mail info 123electric eu www 123electric eu Step 1 Step 3 Step 2 Step 4 ...

Страница 9: ...tion check in the app if the given currents are positive values For example when charging you should see a positive current number next to the solar panel image Both current sensors can measure bidirectional currents It is also possible to only use one current sensor instead of two This may be needed if you have a combined inverter charger with a shared power cable to both inverter and charger The...

Страница 10: ...10 123electric The Netherlands E mail info 123electric eu www 123electric eu Step 6 ...

Страница 11: ...r hole Wire as the following picture See the specifications section of this manual for maximum currents and measurement resolutions in different configurations Step 7 Use the potential free contacts of the two signals relays on the End Board to switch your inverter and charger solar regulator If the device has an enable or disable signal you can connect this signal directly to the potential free c...

Страница 12: ... green CHARGE LED next to the CHARGE relay will flash every second When charging is allowed Pin 1 and 2 of the CHARGE relay contacts see End Board details are closed pin 2 3 are open When charging is NOT allowed Pin 2 and 3 of the CHARGE relay contacts are closed pin 1 2 are open Note when switching inductive loads like a relay contactor make sure there is a protection against flyback of the coil ...

Страница 13: ...0 cells ON ON ON 151 255 cells OFF OFF OFF OFF OFF No balancing OFF OFF OFF OFF ON 1 9V OFF OFF OFF ON OFF 2 0V OFF OFF OFF ON ON 2 1V OFF OFF ON OFF OFF 2 2V OFF OFF ON OFF ON 2 3V OFF OFF ON ON OFF 2 4V OFF OFF ON ON ON 2 5V OFF ON OFF OFF OFF 2 6V for LTO OFF ON OFF OFF ON 2 7V OFF ON OFF ON OFF 2 8V OFF ON OFF ON ON 2 9V OFF ON ON OFF OFF 3 0V OFF ON ON OFF ON 3 1V OFF ON ON ON OFF 3 2V OFF ON...

Страница 14: ...tly monitor the voltage and temperature of individual cells The voltage should stay within specified limits to prevent damage to the cells Keeping the batteries in a safe operating temperature also prevents possible damage The width of the green safe area can be set by changing the threshold voltages V min V balance and V max For more info about this see section The App Conclusion the upper limit ...

Страница 15: ...inverter can supply 5 kilowatt 5 00 kW has to be configured Battery capacity The battery capacity can of course be set to the total capacity of the battery pack We advise however to take only 80 of the rated capacity to comply with cell aging and temperature effects Example If you use four 200 Ah cells 4 x 200 x 3 2 2560 Wh In this case we advise to use a value of 2560 x 0 8 2048 Wh 2 0 kWh Curren...

Страница 16: ...ximum cell temperature threshold the Th warning indicator on the battery details screen is switched on Both relays to control external devices be switched off Charge restart The charge relay switches ON again if the capacity is below the programmable Charge restart and the BMS is in Normal mode This is to prevent toggling relays Discharge restart The load relay will be switched on again if the cap...

Страница 17: ... charge percentage Incoming outgoing current of the battery Stored power in kWh Incoming outgoing power Total battery pack voltage If the BMS is newly mounted on the battery pack the SOC may not show the correct value There is a red exclamation mark next to the SOC percentage Charge the battery pack until all cell voltages are above V balance The SOC will then be set to 100 The red exclamation mar...

Страница 18: ...lancing is much higher than the really cell temperature Green values are in the safe range yellow values shows balancing cells and red values are out of the safe range cells above V max or below V min for example On top of the screen five warning lights will show critical errors E Cell board communication error Vh Exceeding maximum cell voltage Vl Exceeding minimum cell voltage Th exceeding maximu...

Страница 19: ...tch on or off depending on the selected mode Normal mode Charge Discharge load Enable Disable Enable Disable All cell voltages V balance Cell voltage V max All cell voltages V min Cell voltage V min AND SOC charge restart All cell voltages V balance AND SOC discharge restart AND cell temperature T min Cell temperature T min AND cell temperature T min Cell temperature T min AND cell temperature T m...

Страница 20: ...rs Make sure no currents are flowing through the sensors Now press and hold the button until the LED flashes fast to confirm calibration is finished BMS communication output Interconnection connector for the data link to the next cell board Dipswitches Configuration of amount of cells balance voltage See page 7 Current sensor charger Connector for the current sensor of the incoming current solar C...

Страница 21: ... cell To battery Solder a wire on the solder pad and connect this wire to the minus side of the cell LED Indicator LED Flashes when data will be received send continuous ON when the board is balancing BMS IN Data input from the previous cell board Use one of the two holes BMS OUT Data output to the next cell board Use one of the two holes ...

Страница 22: ...tive Load status LED Flashes when load relay is active every 5 seconds Charge status LED Flashes when charge relay is active every 5 seconds BMS IN Interconnection connector for the data link to the previous cell board Button Button for Bluetooth configuration and password reset Charge relay contacts Relay for cutting off chargers MPPT solar chargers etc In case of full batteries Load relay contac...

Страница 23: ... phone supports Bluetooth 4 0 LE The following steps can help to connect to the BMS 1 Restart the App and check in de Settings screen if the BMS appears 2 Restart your phone and open the App to check again 3 Try a different phone download the 123SmartBMS app and check if you see the BMS in the device list 4 Press and hold the blue button on the End Board for 5 seconds The password will be set to t...

Страница 24: ...parallel then these parallel groups in series In this case you only need 1 BMS for 4S 4 cell groups Multiple battery packs parallel When you have to connect multiple packs parallel you need 1 complete BMS per pack You can connect the signal relays on each End Board in series For instance with 3 packs parallel you can run the charging signal through from the first End Board Charge relay to the seco...

Страница 25: ... The charger inverter floating voltages need to match the battery pack to operate correctly d Separate battery sections When the battery pack has separated battery banks the interconnection has to be changed to prevent electromagnetic interference from other components in the system In this case twisted pair wire will be used The data connection has to be galvanic isolated The last Cell Board of t...

Страница 26: ...26 123electric The Netherlands E mail info 123electric eu www 123electric eu The picture below shows a setup with separated battery banks ...

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