Dvcc Features For All Systems; Limit Charge Current; Limit Managed Battery Charge Voltage - Victron energy Color Control GX Manual

11.4. DVCC features for all systems

These features apply to all types of systems when DVCC is enabled; with or without ESS Assistant, with lead-acid or other normal
batteries as well as when an intelligent CAN-bus BMS connected battery is installed:

11.4.1. Limit charge current

Limit charge current is a user-configurable maximum charge current setting. It works across the whole system. MPPT solar
chargers are automatically prioritised over the mains/generator.
This setting is available in the Settings → DVCC menu on the GX device.
Particulars:
1. If a CAN-bus BMS is connected and the BMS requests a maximum charge current that is different from the user-configurable
setting, the lower of the two will be used.
2. This mechanism only works for Victron inverter/chargers including Inverter RS, Multi RS and Solar chargers incl. MPPT RS.
Other chargers, such as Skylla-i's are not controlled and also their charge current is not taken into account. The same applies
for devices that are not connected to the GX device, such as an alternator. Worded differently: the total charge current of the
inverter/chargers and all MPPT solar chargers will be controlled, nothing else. Any other sources will be extra charge current,
unaccounted for. Even when installing a BMV or other battery monitor.
3. DC Loads may not be accounted for, unless a SmartShunt or BMV-712 is installed and correctly configured as a
For example, without the DC load monitor a configured maximum charge current of 50A and DC Loads drawing 20A, the
battery will be charged with 30A, not with the full allowed 50A. With the SmartShunt configured as a DC meter, maximum
charge current configured at 50A and DC system shunt reports a draw of 25A, then the chargers are set to charge with 50 +
25 = 75A.
If you have one or more shunts configured for "DC system" (when more than one, they are added together), then the DVCC
charge current limit compensates for both loads and chargers. It will add extra charge current if there is a load, and subtract it
if there is another charger in the DC system. DC "loads" and "sources" are not compensated for in either direction.
4. Current drawn from the system by the inverter/charger is compensated for. For example, if 10A is drawn to power AC loads
and the limit is set to 50A, the system will allow the MPPT solar chargers to charge with a maximum of 60A.
5. In all situations, the maximum charge limit configured in a device itself, i. e. the Charge current limit set with VictronConnect
or VEConfigure for MPPT solar chargers or inverter/chargers will still be in effect. An example to illustrate this: in case there is
only an inverter/charger in the system and in VEConfigure or VictronConnect the charge current is configured to 50A. And on
the GX device, a limit of 100A is configured, then the working limit will be 50A.
6. DVCC charge current limits are not applied to DC MPPTs when ESS is enabled with Allow DC MPPT to export. This is to get
maximum output from the solar panels for export.

11.4.2. Limit managed battery charge voltage

Some batteries (like BYD and Pylontech) that come from the factory will take some time to settle in, and you may need to run
them at a lower voltage for the first two weeks or so to help them balance.
Page 61
Color Control GX Manual
DC
DVCC - Distributed Voltage and Current
meter.
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