Color Control GX manual [Victron Energy]
2.4.1 Which device should I use for SOC calculation?
There are three products types that calculate State Of Charge (SOC). The CCGX itself does not calculate SOC, it only retrieves it from the connected devices.
The three products that calculate SOC are:
1. Battery Monitors, such as the BMVs, the Lynx Shunt, or the Lynx Ion BMS
2. Multi and Quattro inverter/chargers
3. Batteries with built-in battery monitor and a (mostly CAN bus) connection to the CCGX.
For some systems types it is necessary to use a dedicated battery monitor, such as a BMV or Lynx Shunt VE.Can. For other systems it is not necessary.
Explaining the different system types one by one:
Battery and Multi or Quattro (a typical backup system)
No battery monitor is required: the Multi or Quattro is the only product connected to the battery and has full control over all charge and discharge currents. Therefore it can calculate the correct SOC itself.
Configuration:
1. Enable and configure the Battery Monitor in VEConfigure.
2. In the CCGX, in Settings → System setup, verify the selected Battery Monitor. It should be set to the Multi or Quattro.
Battery with Multi or Quattro and MPPT Solar Chargers -ALSO- An EasySolar with CCGX built-in
No battery monitor is required, as long as all MPPT Solar Chargers are Victron products and are connected to the CCGX. The CCGX will continuously read the actual charge current from all solar chargers,
and send the total to the Multi (or Quattro) which then uses that information in its SOC calculations.
Configuration:
1. Enable and configure the Battery Monitor in VEConfigure.
2. On the CCGX, in Settings → System setup, verify the selected Battery Monitor. It should be the Multi or Quattro.
3. In the same menu, verify that the option 'Use solar charger current to improve VE.Bus SOC' is enabled. Note that this is not a setting - it just an indicator of an automatic process.
Note that this feature requires recent firmware versions in both the Multis or Quattros (402 minimum), and the CCGX (v2.06 minimum).
Batteries with a built-in battery monitor
In cases where the system includes a battery which has a built-in battery monitor and SOC calculation - such as many of the batteries listed here (/live/battery_compatibility:start) - a dedicated battery
monitor is not required.
Configuration:
1. Connect the battery communications cable to the CCGX according to the instructions.
2. In the CCGX, in Settings → System setup, verify that the selected Battery Monitor is the battery.
Note that the Battery Monitor setting in VEConfigure3 is irrelevant. For systems like this, changing this setting will have no effect on the charge or any other parameters in this type of system.
Other system types
When there are more chargers, or loads, connected to the battery than just the Multi or MPPT Solar Chargers, a dedicated Battery Monitor will be required. Examples are:
House loads in Marine or Vehicle system.
PWM Solar Chargers
AC chargers, such as Skylla-is, Phoenix chargers, non Victron chargers, etc.
Alternators
DC-DC chargers
Wind turbines
Hydro turbines
Configuration:
1. Configure all BMV parameters (see BMV documentation)
2. In the CCGX, in Settings → System setup, verify the selected Battery Monitor. It should be the BMV Battery Monitor.
Note that the Battery Monitor setting in VEConfigure3 is irrelevant. For systems like this, changing this setting will have no effect on the charge - or any other parameters - in this type of system.
2.4.2 Notes
Note that this is all about showing an accurate state of charge to the user, rather than being required for an efficient system. The SOC percentage is not used for normal battery charging. It is,
https://www.victronenergy.com/live/ccgx:start
2018-07-31, 10*05 AM
Page 17 of 32
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