We just installed a 20 panel installation with CCA, TAP and TS4-A-O's on all panels.
The inverter I use is a Growatt MIN 6000TL-XH, which is coupled to a 10 KWh battery, also from Growatt. I plan to expand this system with a backup box to make it a full hybrid inverter capable of running off-grid.
As far as I understand, if I power the CCA from the emergency power supply of the hybrid inverter, the system should fully function in case of a grid failure.
But what if the CCA or TAP gets broken? As far as I understand, in that case all my panels will shutdown. So, it seems a good idea to keep a spare CCA and TAP at hand, just in case.
However, what if the CCA or TAP breaks down during some kind of emergency period where there is no grid nor internet connection? How do I replace a broken CCA or TAP with a spare one(s) in that situation?
So, the question is:
How do I configure a spare CCA and TAP, such that I can instantly replace either a broken CCA or TAP in a situation when there is no grid nor internet?
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