My Multiplus is running offgrid and is used to load a e-car. The inverter is switched on and off via VRM. To automatically stop the inverter I use the programmable relais K1 (<20% SOC -> Off) and connect the output to the safety Assistent at AUX1, This runs fine.
To connect a Grid-Meter i bought a passive USB Hub. I plugged off my solar charger 2 from USB and plugged in the HUB. There was a „click“ and the GX device was off. This happens in state OFF of the Multiplus.
I thought Uihh... and other thoughts… broken? Defect?
I remembered the warning about a deadlock with the GX device.
1. Plugged of the GX internal from the VE Bus. Nothing changed
2. Temporarily connected the Multiplus with the grid. Nothing changed
3. Opened the Remote On/Off on the Multiplus terminals. The display of the GX device was on for a second.
4. Short cut AUX1 to enable Inverter via AUX1. That was it.
My Multiplus is running again. Puhh
Some technical background would be fine. And maybe a warning in the manual of the Multiplus GX,
I opened the Multiplus for step 1, and surprise there is a additional VE Direct port (required for internal MPPT in Easy Solar devices). Is this port usable? If yes I do not need the USB Hub
Be carefully with USB Hubs.
Edit: Changed Security to Safety and solar inverter to solar charger