We have a multiplus 2 48/3000 connected to a BMZ ESS 7.0 48V Li-ion battery. The multiplus has 230V AC power supply and the battery supplies 54V DC, the MK-3 interface is connected to computer and the firmware has been upgraded, however when switching on the multiplus nothing happens. No diodes light up and the computer cant find the inverter.
Additionally we've connected a CCGX with RJ-45 to the multiplus and a VE.Bus to CAN Type B Cable is used to connect the ESS to the CCGX.
Since we can't get any communication up and running we're not able to proceed with the configuration. Perhaps something was set to not allow the multiplus to switch on due to connecting the CCGX to the poles of the BMZ battery for Power Supply. If so how could we reset the Multiplus II inverter to begin over following all the steps in the manual?
Thanks in advance. All insights are greatly appreciated :)