Quick one, I have disabled charging on my Multiplus-II 24/3000/70 by using the "charge current control" assistant and closing AUX2. The strange thing is that intermittently the multi goes into charging mode for half a second and then back to passthru. No relays are clicking or anything. It creates the following graph in VRM:
A bit annoying, why is this?
Removed the assistant altogether after not getting anywhere. I can change charge current limit via modbus instead, but set at 0 it still goes to charge mode. @mvader (Victron Energy), In the modbus register list, there is a note about "-1 Disables" (#2705), but that address do not accept the -1 value from node-red. The return is:
"RangeError: The value of "value" is out of range. It must be >= 0 and <= 65535. Received -1"
The register list describes the range for #2705 as "-32768 to 32767".
Is it something possible to fix in an upcoming release of VenusOS or would it require changes in firmware in the MultiplusII?
Is it also possible that it is also just reporting battery state?
Every time it happens, the absorption light goes on, and the unit starts humming for just a brief half-second, so it is actually starting up the charging circuitry inside before switching over to passthru again.
Battery state is, in my system, reported by my BMV712.
Maybe the aux relay is not receiving the signal it is programmed to respond to during those times. That would be where I would start checking against the settings you have used.
