question

dreww avatar image

Lost functions- CCGX and VeBus BMS can't use remote on/off.

Using Victron 300 Amp/hr Lithium + VeBus BMS. Can no longer turn Multiplus 2000 on/off or adjust in AC (Hybrid mode)- which is a great feature. CCGX now shows feature disabled and controlled by BMS. All firmware up to date.

Anyway to override? Really want to use small genny + battery to run higher AC loads.


CCGX Color ControlBMSinverter current draw
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1 Answer
Guy Stewart (Victron Community Manager) avatar image
Guy Stewart (Victron Community Manager) answered ·

Hi @DrewW,

Sorry to say this is a limitation of the VE.Bus BMS system - there is no work around - except to use the additional physical Digital Multi Control accessory.

Apologies, but if there was some other way with the software, it would be so.

There is a some more detail here in the CCGX manual, under "VE.Bus systems with Lithium batteries and a VE.Bus BMS.

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So, its one or the other? ..... ColorGX or Digital Multi Control accessory?

It is possible to use both the GX device and the Digital Multi Control (DMC) at once in the same system. But if you do have them both, the DMC will override the on/off control and AC input current limit controls of the GX device.

See this diagram.

If you also have a VE.Bus BMS battery system, then the addition of the DMC to the GX device is required if you want to have the remote on/off switch + AC input current limit control. Note that the DMC will override the GX device AC input current control in this configuration.

If you just want the AC input current limit control, then you do not need the additional DMC, you can just get the GX device and use that to remotely adjust AC input current limit.

If you do NOT have a VE.Bus BMS battery system, then you can do both On/Off and AC input current limit control with just the GX device.

Everyone at Victron wishes it was simpler too, but for now that is the way it is :)