HELP! Anyone. I am at wits end. I’m a Victron Installer and done many of these systems.
I had a client contact me to fix his system. I did many minor fixes and the final thing was a firmware update to the Two Multiplus inverters in a split phase configuration. I did the upgrade and had to reformat the inverts and set up the split system again. no problems. It all works and the final items was to test shore/generator transfer. The two inverters see 60Hz normal frequency and 120V input, but will NOT transfer to that. I checked every setting. Virtual switch is off. Other items made no difference, like UPS, Wide Frequency range and all other settings I can think of in my experience with Victron.
Any ideas or paths to troubleshooting a solution would be appreciated greatly. Again, the system works in UPS mode just fine but will not perform a transfer to generator whereas before the firmware update v554, it had no problems.