The boys tell me that the sparkie was new with the company and had been using a different inverter that had a 600V max input hence when he realised that there was an issue (over 500V) made a blunder doing the re-config into two strings.
The boss didnt need to give him a bollocking,
the other sparkies aren't letting him forget it anytime soon
and I think he's buying beer this week.
He was there in the dark last night getting it sorted.
Let us know how it goes today nice and Sunny here in Perth today. 8.8+ and its a ripper system as each of my 2.59 arrays are doing around 9.8 -10.2 kWhrs / day at the moment