Victron energy Color Control GX - DVCC - Distributed Voltage and Current Control; Introduction and Features

11. DVCC - Distributed Voltage and Current Control
11.1. Introduction and features
Enabling DVCC changes a GX device from a passive monitor into an active controller. The available features and effects of
enabling DVCC depend on the type of battery used. The effect also depends on the installed Victron components and their
configuration. Two examples:
Managed CAN-bus batteries: In systems with a managed CAN-bus BMS battery connected, the GX device receives a Charge
Voltage Limit (CVL), Charge Current Limit (CCL) and Discharge Current Limit (DCL) from that battery and relays that to the
connected inverter/chargers and solar chargers. These then disable their internal charging algorithms and simply do what they're
told by the battery.
Lead-acid batteries: For systems with lead-acid batteries, DVCC offers features such as a configurable system-wide charge
current limit, where the GX device actively limits the inverter/charger if the solar chargers are already charging at full power, as
well as Shared Temperature Sense (STS) and Shared Current Sense (SCS).
This table shows the recommend settings for different battery types:
Lead-acid VE.Bus BMS V1
Lithium
VE.Bus BMS V2
1)
Lithium
Supported 3rd party
managed batteries
2)
Auto-config No No No
2)
System charge current Yes Yes Yes
2)
Should you enable
SVS?
Yes
3), 4) 3), 4) 2)
Should you enable
STS?
Yes No No
2)
Should you enable
SCS
Yes
3)
,
4) 3)
,
4) 2)
Charge control method N/A N/A N/A
2)
Wire ATC & ATD N/A Yes
5) 2)
1)
DVCC must be enabled for the GX device to control the solar chargers, Inverter RS or Multi RS in a system with a VE.Bus
BMS V2.
2)
Use the Battery Compatibility manual to see which parameters need to be set and which are set automatically.
3)
In an ESS system the VE.Bus device is already synced with the solar chargers, so we recommend leaving SVS and SCS
off.
4)
For all other systems: If a BMV or SmartShunt is installed, we recommend enabling SVS and SCS. In all other cases,
leave SVS and SCS disabled.
5)
Solar Chargers, Inverter/Chargers, Multi RS and Inverter RS do not require wiring. All other loads and chargers must be
wired and controlled via ATC/ATD.
To enable or disable DVCC, go to Settings → DVCC on the GX device:
Color Control GX Manual
Page 58
DVCC - Distributed Voltage and Current
Control