Can't figure out how to disable charging without disconnecting from grid in Node-Red

Q&A and troubleshooting
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1

Hey everyone,

The problem:

I know there are already some similar questions on this topic, but none of the proposed solutions seem to work or are available to me.

What I have already found and tried:

  • Set “DVCC Charge current limit (A)” to 0
    • ESS Control Node > Victron Settings > DVCC Charge current limit (A)
    • This value gets ignored and the limit set in the system via the VictronConnect APP is used
    • Note: DVCC is disabled on my system
  • Set “Max charge power (W)” to 0
    • ESS Control Node > Victron Settings > Max charge power (W)
    • This value also gets ignored
  • Set “/Dc/0/MaxChargeCurrent”
    • Cannot find it (I looked in the “Custom Control Node”)
  • Set “MaxChargeCurrent”
    • Custom Control Node > com.victronenergy.settings > /Settings/SystemSetup/MaxChargeCurrent
    • Doesn’t seem to do anything

I did hit upon this page which states that for Mode 2:

The available control points are:

  • Grid power setpoint

  • Enable/Disable charge

  • Enable/Disable inverter

My system is currently set to Mode 1. Could that be what’s blocking the settings from changing?

My goal:

I wiuld like my batteries to only charge on solar. However, I cannot disconnect from the grid because if my solar production is in excess of what I need, I need somewhere for that energy to go, in this case to the grid. So disabling the charger would be perfect.

System details:

  • Multiplus-II 24/5000/120
  • Raspberry PI running Venus v3.67
2

Haven’t found a way directly yet besides manipulating the charge current control assistant with a relay from the gx and node red.

There are couple of threads with this same discussion/question