Dvcc Operation With Ve.bus Bms V2; Charger Control Via Charge Disconnect; Charging With An Alternator - Victron energy VE.Bus BMS V2 Product Manual

3.3.4. DVCC operation with VE.Bus BMS V2

DVCC (Distributed Voltage and Current Control)
Inverter RS, Multi RS or Multis.
In order for the GX device to control the solar chargers, Inverter RS or Multi RS in a system with a VE.Bus BMS V2, DVCC
must be enabled. These chargers are controlled by setting their maximum charge current limit to zero when the VE.Bus BMS V2
requests that charging should stop.
Note that the presence of a VE.Bus BMS V2 does not control the charge voltage of the solar chargers, Inverter RS, Multi RS or a
Multi.
• In an ESS system, the Multi controls the charging voltage of the solar chargers, Inverter RS and Multi RS using the
configuration made with VE.Configure or VictronConnect. In other words: The charge algorythm must be configured in the
Multi.
• In a non-ESS (off-grid) system, the solar chargers, Inverter RS, Multi RS and Multi follow their own internal charge algorithm.
Here, all devices must be set to the appropriate lithium charge algorithm.
AC chargers and smaller Phoenix inverters are not (yet) controlled by the GX device, and therefore you still need to wire signal
wiring (via ATC aka Charge disconnect) to control such devices.

3.3.5. Charger control via Charge disconnect

Chargers that are not DVCC compatible or installed in systems without a GX device can be controlled via the VE.Bus BMS V2
Charge disconnect output, provided the chargers have a remote on/off port.
The Charge disconnect output, normally high (equal to battery voltage), must be connected to the H terminal of the charger's
remote on/off connector. At high cell voltage or low temperature, the Charge disconnect output becomes free-floating and pulls
the charger's remote on/off H terminal low (to battery minus), stopping the charge.
For battery chargers with a remote terminal that activates the charger when the terminal is pulled low (to battery minus) and
deactivates when the terminal is left free floating, the
Alternatively, a Cyrix-Li-Charge relay
a battery charger and the lithium battery. It will engage only when charge voltage from a battery charger is present on its
charge-side terminal. A control terminal connects to the Charge disconnect output of the BMS.

3.3.6. Charging with an alternator

Alternator charging can be controlled either with a DC-DC charger such as the
controlling an external alternator regulator like the Balmar MC-614.
Both devices are then also controlled by the BMS Charge disconnect output wired to the Orion-Tr Smart or SolidSwitch 104
remote on/off H terminal. See System with an alternator [16]
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VE.Bus BMS V2
allows a GX device to control compatible devices such as solar chargers,
Inverting remote on-off cable
can be used. The Cyrix-Li-Charge relay is a unidirectional combiner that inserts between
can be used.
Orion-Tr Smart, or with a SolidSwitch 104 when
Installation