Re: [RE-wrenches] Sunny Island grid tie battery back and backup stability issues with ABB

2017-09-19 Thread August Goers
Thanks for the input. Jerry and Howie, you may be referring to the Sunny Island's automatic frequency synchronization mode. This allows the Sunny Island to adjust the frequency to keep clocks accurate. The setting is 250.11 AfraEna and we already have that disabled. My understanding is that the Sun

Re: [RE-wrenches] Sunny Island grid tie battery back and backup stability issues with ABB

2017-09-19 Thread Howie Michaelson
My memory was that there was a software switch that shut off the frequency shift which is specifically used to attempt to control AC coupled inverters, but I could be mistaken - it's been a couple of years since I programmed a SI. In any case, the unstable frequency doesn't sound like a feature. L