Victron#

victron-only

Configuring a Victron inverter with GbbOptimizer requires correct setup of the ESS system and the VRM portal.

Checklist#

Before starting GbbOptimizer, verify the following settings:

Do not install Beta firmware
DESS must be disabled
Schedules — the “Self-consumption above limit” option should be set to PV (not “PV & Battery”). This ensures schedules do not cause battery discharge at night
Battery Life in ESS must be disabled — select mode: Optimized (without BatteryLife)
Log interval (in VRM Online Portal) set to 1 min
VRM permissions — the user must have Full Control enabled
Restart Cerbo after making changes

Incorrect Battery Life or Schedules settings can cause unexpected battery discharge at night.

Victron parameters in GbbOptimizer#

A detailed description of Victron parameters (VRM Portal Id, Installation Id, VRM Token, etc.) can be found in the Installation parameters section.

MQTT topics modified by GbbOptimizer#

GbbOptimizer modifies only the following topics/properties in the Victron system. The variable {i} denotes the schedule number (0-4).

Charging schedules (Schedules)#

MQTT Topic	Property	Notes
`settings/0/Settings/CGwacs/BatteryLife/Schedule/Charge/{i}/Day`	Schedule day
`settings/0/Settings/CGwacs/BatteryLife/Schedule/Charge/{i}/Soc`	SOC limit
`settings/0/Settings/CGwacs/BatteryLife/Schedule/Charge/{i}/Start`	Start time
`settings/0/Settings/CGwacs/BatteryLife/Schedule/Charge/{i}/Duration`	Duration

ESS and power control#

MQTT Topic	Property	Notes
`settings/0/Settings/CGwacs/BatteryLife/MinimumSocLimit`	ESS / Minimum SOC
`settings/0/Settings/CGwacs/AcPowerSetPoint`	ESS / GridSetpoint
`settings/0/Settings/SystemSetup/MaxChargeCurrent`	DVCC / Maximum charging current
`vebus/{257 or other}/Ac/ActiveIn/CurrentLimit`	MultiPlus / Input current limit

Control at negative prices (Price < 0)#

MQTT Topic	Property	Notes
`system/0/Relay/0/State`	Relay 1	Activated when price < 0
`system/0/Relay/1/State`	Relay 2	Activated when price < 0
`vebus/{257 or other}/Mode`	Inverter mode	Activated when price < 0
`settings/0/Settings/CGwacs/OvervoltageFeedIn`	DC-coupled PV — feed in excess	Activated when price < 0

The VE.Bus instance number (default 257) may differ in your system. Check it in the installation parameters as “VRM Instance number of VE.Bus System device”.