I am trying to repurpose an old processor Multi 24/1600 (firmware 196209) that has been running happily with Generator Start/Stop, AC Input Current Limit, Charge Current Limit Assistants. I want to add a 5 panels PV with an old Aurora inverter I have. Five panels in series are difficult for a DC MPPT and the cable run is long for 5 paralleled panels.
I added a 2nd Generator Start/Stop using General Flag to disable ACIN when Inverter load was low, and PV Inverter Support to manage the grid tie inverter.
When the grid tie inverter started (shore power disconnected) my VE Config display went from approx 50VA load to around zero, but the Multi started making a thuding noise every few seconds, like the transformer was banging on the case.
When shore power connected, INV load went to a very large number 15xxxxxx and the multi reset itself.
Have I missed something in the setup? I did try to read all the blog pages on Assistants, AC Coupled, and Solar.
Am I expecting too much from my old girl ?
Thanks for any assistance.