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battery_compatibility:freedomwon [2020-08-02 15:54] – Updated formatting and comments on VE Configure warwickchapmanbattery_compatibility:freedomwon [2020-08-02 22:55] – [GX-Device Venus OS Configuration] warwickchapman
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 ====== Victron & Freedom Won LiFePO4 batteries - Freedom Lite ====== ====== Victron & Freedom Won LiFePO4 batteries - Freedom Lite ======
  
 +===== Installers Note =====
 +
 +**Important:** It is very important to read this documentation in full and carefully.  Freedom Won battery warranties require that you have configured the battery correctly.
 +
 +Please take special and careful note of the section below on "DC bus pre-charging".
  
 ===== Introduction ===== ===== Introduction =====
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 // //
  
-//**NOTE**: If a system includes one or more **VE.CAN MPPTs** it is necessary to request that Freedom Won dispatches the Lite from the factory with a profile accommodating 250kbps BAUD rate for the CAN Bus (the standard is 500kbps). This change can also be made remotely by Freedom Won with a local PC connected to the battery. Please contact support@freedomwon.co.za for assistance.//+//**NOTE**: If a system includes one or more **VE.CAN MPPTs** please carefully read the section below on VE.CAN MPPTs.//
  
 ===== GX-Device Required ===== ===== GX-Device Required =====
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 Further to above, the Lite should be sized so as to provide adequate energy capacity in kWh to meet the load demands of the system and to receive most of the excess solar generation each day (for self-consumption installations).  Further to above, the Lite should be sized so as to provide adequate energy capacity in kWh to meet the load demands of the system and to receive most of the excess solar generation each day (for self-consumption installations). 
  
-//**NOTE**: It is not permissible to install an inverter larger than stated in the Lite specification sheet regardless of whether the “Limit DC Discharge Power” ESS feature in the GX-device is used. For instances where the grid is not available this power limiting feature will not operate and the battery could thus be overloaded, causing it to trip. The Lite will also not be able to limit discharge power in the absence of a grid connection. Lastly, the Lite contains a protection circuit breaker that is only rated to handle the power-up inrush current of the inverter for up to the capacity stated in the specification sheet.// +//**NOTE**: It is not permissible to install an inverter larger than stated in the Lite specification sheet regardless of whether the "Limit DC Discharge Power" ESS feature in the GX-device is used. For instances where the grid is not available this power limiting feature will not operate and the battery could thus be overloaded, causing it to trip. The Lite will also not be able to limit discharge power in the absence of a grid connection. Lastly, the Lite contains a protection circuit breaker that is only rated to handle the power-up inrush current of the inverter for up to the capacity stated in the specification sheet.// 
  
 ===== Victron-certified Integration ===== ===== Victron-certified Integration =====
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 The Freedom Lite transmits, amongst others, the following messages to the [[https://www.victronenergy.com/live/venus-os:start|GX-device]]: The Freedom Lite transmits, amongst others, the following messages to the [[https://www.victronenergy.com/live/venus-os:start|GX-device]]:
  
-  - Adaptive Maximum Charge Voltage Set-point – the value transmitted varies from 54.1V to 55.8V depending on the state of balancing on the particulate Lite. Typically a well-balanced Lite battery will request a maximum charge voltage of between 55.0V and 55.8V. This advanced feature is only available from Freedom Won and allows superior system control and optimal battery management. The GX-device uses this set-point to control the real time operating or target voltage of the inverter/charger devices and the MPPTs. +  - Adaptive Maximum Charge Voltage Set-point – the value transmitted varies from 54.8V to 55.8V depending on the state of balancing on the particular Lite. Typically a well-balanced Lite battery will request a maximum charge voltage of between 55.0V and 55.8V. This advanced feature is only available from Freedom Won and allows superior system control and optimal battery management. The GX-device uses this set-point to control the real time operating or target voltage of the inverter/charger devices and the MPPTs. 
   - Charge Current Limit (CCL) – this is the maximum current that the battery will accept at any given time stated in Amps. This is a secondary control feature behind the more effective maximum charge voltage control method. This value reduces as the battery approaches 100% State of Charge (SoC). The GX-device uses this value to ensure that the combined Victron system of inverter/chargers and MPPT’s does not exceed the CCL of the Lite. If the CCL drops to zero, the Victron system within a few seconds will ensure that there is no net current flow into the Lite.    - Charge Current Limit (CCL) – this is the maximum current that the battery will accept at any given time stated in Amps. This is a secondary control feature behind the more effective maximum charge voltage control method. This value reduces as the battery approaches 100% State of Charge (SoC). The GX-device uses this value to ensure that the combined Victron system of inverter/chargers and MPPT’s does not exceed the CCL of the Lite. If the CCL drops to zero, the Victron system within a few seconds will ensure that there is no net current flow into the Lite. 
-  - Discharge Current Limit (DCL) – this is the maximum discharge current that the battery is prepared to accept at any given time. This value typically decreases as the battery drops below 10% SoC. The Victron inverter cannot enforce a variable DCL unless in ESS mode were an AC input source can be used to supplement the power to the loads. If there is no AC input source the inverter will stop supplying power to the loads as soon as the DCL drops to zero.  +  - Discharge Current Limit (DCL) – this is the maximum discharge current that the battery is prepared to accept at any given time. This value typically decreases as the battery drops below 10% SoC. The Victron inverter cannot enforce a variable DCL unless in ESS mode were an AC input source can be used to supplement the power to the loads. If there is no AC input source the inverter will stop supplying power to the loads as soon as the DCL drops to zero. 
-  - Battery Temperature +  - Additional Battery Information 
-  - Minimum Battery Voltage +    - Battery temperature 
-  - Battery State of Charge +    - Minimum battery voltage 
-  - Battery State of Health +    - Battery state of charge 
-  - Battery Voltage +    - Battery state of health 
-  - Battery Current +    - Battery voltage 
-  - Battery Name+    - Battery current 
 +    - Battery name 
 +    - Highest cell voltage 
 +    - Lowest cell voltage 
 +    - Highest probe temperature 
 +    - Lowest probe temperature 
 +    - Battery gross capacity 
 +    - Number of batteries online
  
 All of the above information can be viewed in the Freedom Lite device sub menus on the GX-device.  All of the above information can be viewed in the Freedom Lite device sub menus on the GX-device. 
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 If the CAN bus cable is removed or damaged the Victron inverters will shut down within 5 minutes. This prevents continued operation in the absence of communication from the battery. Likewise, the MPPT’s will stop producing power to the DC bus.  If the CAN bus cable is removed or damaged the Victron inverters will shut down within 5 minutes. This prevents continued operation in the absence of communication from the battery. Likewise, the MPPT’s will stop producing power to the DC bus. 
 +
 +===== DC Bus Pre-charging =====
 +
 +**Important:** Many installers neglect this aspect.
 +
 +The inrush current when switching on the battery breaker onto the DC bus is huge. This can cause damage to the breaker over time. So it is a Freedom Won requirement that the DC bus is pre-charged before switching on the battery. This is achieved by switch on the AC input to the inverters – the inverters will use the AC power to pre-charge their capacitors. This will eliminate the huge inrush current. The MPPTs can also be used for pre-charging by switching on the solar panels supply to the MPPTs.
  
 ===== CAN Bus Wiring ===== ===== CAN Bus Wiring =====
  
 The connection of the Lite to the GX-device is extremely simple. A standard **straight through** CAT5e Ethernet cable is required of the desired length, with one end plugged into one of the RJ45 sockets on the Lite and the other end plugged into one of the CAN sockets on the GX-device. Note that the second RJ45 socket in each case must be fitted with an end of line 120Ω resistor. Two are supplied with each GX-device. If multiple batteries are installed in parallel the second RJ45 socket is used to link the next battery in the line onto the CAN Bus network. The termination resistor is installed in the last battery in the CAN Bus line. Refer to Lite installation manual for further information.  The connection of the Lite to the GX-device is extremely simple. A standard **straight through** CAT5e Ethernet cable is required of the desired length, with one end plugged into one of the RJ45 sockets on the Lite and the other end plugged into one of the CAN sockets on the GX-device. Note that the second RJ45 socket in each case must be fitted with an end of line 120Ω resistor. Two are supplied with each GX-device. If multiple batteries are installed in parallel the second RJ45 socket is used to link the next battery in the line onto the CAN Bus network. The termination resistor is installed in the last battery in the CAN Bus line. Refer to Lite installation manual for further information. 
 +
 Correct CAN Bus communication can be verified by observing whether the Freedom Lite battery is presented in the GX-device list under the name “Freedom Lite”. Correct CAN Bus communication can be verified by observing whether the Freedom Lite battery is presented in the GX-device list under the name “Freedom Lite”.
 +
 +===== Victron VE.CAN MPPTs and Freedom Won Batteries =====
 +
 +**Note:** In this section, the reference to "Color Control GX" refers only to that specific model of GX device and excludes the rest of the range.  The limitations described in this section apply only to the Color Control GX (CCGX).
 +
 +The Freedom Won Battery Management System is configured by default to communicate over CAN bus at a 500kbps baud rate. For systems using a Color Control GX and Victron VE.CAN MPPTs, it is possible to change the baud rate of the battery to 250kbps in order to accommodate the VE.CAN baud rate. **However**, that is only possible with one battery on a system with a CCGX.
 +
 +If there are slave batteries on a system, then there are conflicting CAN messages on the bus, and it is necessary to split the battery on the CAN Bus from the devices on Victron's VE.CAN bus. The Color Control GX has a single CAN bus and thus this split cannot be achieved.  Therefore, CCGX **cannot** be used in systems with multiple Freedom Won batteries.  In such cases, MPPTs must be swapped out for VE.Direct versions and [[https://www.victronenergy.com/live/ccgx:start#power|additional ports can be provided with a USB hub]] (See "Extending USB ports by use of a self-powered USB hub").  Alternatively, the CCGX can be upgraded to something newer like the Cerbo GX and external display.
 +
 +Systems with both VE.CAN MPPTs and more than one Freedom Lite battery require a GX device with a dual CAN Bus.  The entire GX-device range with the exception of the Color Control GX and the GX built into the MultiPlus II GX have dual CAN buses.  In these dual CAN Bus systems, the battery will always run at the standard 500kbps while the VE.CAN bus will run at 250kbps.
 +
 +Where batteries need to be configured with a profile accommodating 250kbps baud rate for the MPPTs on the can CAN Bus (the standard is 500kbps), the change be made:
 +  - on order by requesting that Freedom Won dispatches the Lite from the factory with baud set to 250kbps; or
 +  - the battery can be reconfigured remotely by Freedom Won with a local PC connected to the battery. 
 + 
 +Please contact [[support@freedomwon.co.za|support@freedomwon.co.za]] for assistance.  
  
 ===== VEConfigure 3 Settings ===== ===== VEConfigure 3 Settings =====
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   * ''Low Pre-alarm: 51.50''   * ''Low Pre-alarm: 51.50''
  
-{{:battery_compatibility:freedom_won_ve_config_2.png?direct&600|}}+{{:battery_compatibility:freedom_won_ve_config_2.png?direct|}}
  
 ☛ Charger Settings Tab: Set Battery Type as "Lithium Iron Phosphate, LiFePo4 batteries".  ☛ Charger Settings Tab: Set Battery Type as "Lithium Iron Phosphate, LiFePo4 batteries". 
  
-{{:battery_compatibility:freedom_won_ve_config_3.png?direct&600|}}+{{:battery_compatibility:freedom_won_ve_config_3.png?direct|}}
  
 ☛ Set Charger Settings.  The charge voltage values are overridden by the Lite but should be set correctly regardless for redundancy. The charge current should be set according to the user’s requirements **but** this value combined with all other charge sources cannot exceed the charge limit of the battery – it is possible to select “Limit Charge Current” on the GX-device as an additional measure to prevent the total system charge current from exceeding the charge capacity of the Lite. ☛ Set Charger Settings.  The charge voltage values are overridden by the Lite but should be set correctly regardless for redundancy. The charge current should be set according to the user’s requirements **but** this value combined with all other charge sources cannot exceed the charge limit of the battery – it is possible to select “Limit Charge Current” on the GX-device as an additional measure to prevent the total system charge current from exceeding the charge capacity of the Lite.
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   * ''Absorption time   : 1 Hr''   * ''Absorption time   : 1 Hr''
  
-{{:battery_compatibility:freedom_won_ve_config_4.png?direct&600|}}+{{:battery_compatibility:freedom_won_ve_config_4.png?direct|}}
  
 ☛ When setting up the ESS Assistant select LiFePO4 battery and enter the Ah value for the Lite (or the combination of Lite’s for a parallel battery system) as per the Ah rating provided in the Lite specification sheet eg. Lite 5/4 = 100Ah.  ☛ When setting up the ESS Assistant select LiFePO4 battery and enter the Ah value for the Lite (or the combination of Lite’s for a parallel battery system) as per the Ah rating provided in the Lite specification sheet eg. Lite 5/4 = 100Ah. 
  
-{{:battery_compatibility:freedom_won_ve_config_5.png?direct&600|}}+{{:battery_compatibility:freedom_won_ve_config_5.png?direct|}}
  
-{{:battery_compatibility:freedom_won_ve_config_6.png?direct&600|}}+{{:battery_compatibility:freedom_won_ve_config_6.png?direct|}}
  
-☛Select – Do not change battery type+☛ Select – Do not change battery type
  
-{{:battery_compatibility:freedom_won_ve_config_7.png?direct&600|}}+{{:battery_compatibility:freedom_won_ve_config_7.png?direct|}}
  
 ☛Sustain Voltage = 50V ☛Sustain Voltage = 50V
  
-{{:battery_compatibility:freedom_won_ve_config_8.png?direct&600|}}+{{:battery_compatibility:freedom_won_ve_config_8.png?direct|}}
  
  
-☛Enter Dynamic Cut-off values as below (usually the Lite will override these values, however they should be entered correctly for redundancy)+☛ Enter Dynamic Cut-off values as below (usually the Lite will override these values, however they should be entered correctly for redundancy)
  
-{{:battery_compatibility:freedom_won_ve_config_9.png?direct&600|}}+{{:battery_compatibility:dco.png?direct|}}
  
-☛Restart Offset = 1,2V+☛ Restart Offset = 2.0V
  
-{{:battery_compatibility:freedom_won_ve_config_10.png?direct&600|}}+{{:battery_compatibility:ro.png?direct|}}
  
-☛Go back to General and disable battery monitor again. +☛ Go back to General and disable battery monitor again. 
  
 ===== GX-Device Venus OS Configuration ===== ===== GX-Device Venus OS Configuration =====
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 It is very important that the following settings are entered correctly for proper functioning of the Lite communication interface:  It is very important that the following settings are entered correctly for proper functioning of the Lite communication interface:
  
-☛Settings → Services → CAN-bus Profile → CAN-bus BMS (500kbit/s)+☛ Settings → Services → CAN-bus Profile → CAN-bus BMS (500kbit/s)
  
 //**Note**: For systems with VE Can MPPT’s, select 250kbit/s and ensure Lite profile is also set for 250kbit/s (check with Freedom Won or your Freedom Won distributor).//  //**Note**: For systems with VE Can MPPT’s, select 250kbit/s and ensure Lite profile is also set for 250kbit/s (check with Freedom Won or your Freedom Won distributor).// 
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 {{:battery_compatibility:freedom_won_venus_1.png?direct&600|}} {{:battery_compatibility:freedom_won_venus_1.png?direct&600|}}
  
-☛Confirm that the Freedom Lite is showing in the device list as per below+☛ Confirm that the Freedom Lite is showing in the device list as per below
    
-☛Settings → System Setup → Switch on DVCC and SVS, check that BMS Control is “On”+☛ Settings → System Setup → Switch on DVCC and SVS, check that BMS Control is “On”
  
 {{:battery_compatibility:freedom_won_venus_2.png?direct&600|}} {{:battery_compatibility:freedom_won_venus_2.png?direct&600|}}
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 {{:battery_compatibility:freedom_won_venus_3.png?direct&600|}} {{:battery_compatibility:freedom_won_venus_3.png?direct&600|}}
  
-☛Freedom Lite (device list) → Parameters → Confirm that the Charge Current Limit and Discharge Current Limit are as per the Lite specifications (Note: if the battery is fully charged the CCL may be reduced. Check that the voltage target is within the range 54,1V to 55,8V (Note: below about 95% SoC the value reflected should be 55,7 or 55,8V. For a fully charged battery this value should range from 55,0V to 55,8V depending on the state of balancing of the cells in the Lite. +☛ Freedom Lite (device list) → Parameters → Confirm that the Charge Current Limit and Discharge Current Limit are as per the Lite specifications (Note: if the battery is fully charged the CCL may be reduced. Check that the voltage target is within the range 54.8V to 55.8V (Note: below about 95% SoC the value reflected should be 55.7 or 55.8V. For a fully charged battery this value should range from 55.0V to 55.8V depending on the state of balancing of the cells in the Lite. 
  
 ===== MPPT Configuration ===== ===== MPPT Configuration =====
battery_compatibility/freedomwon.txt · Last modified: 2024-02-08 14:12 by warwickchapman
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