[RE-wrenches] Outback Programming Ghost

[Ray Walters]

It almost sounds like someone got in there and tried to reprogram stuff 
themselves.  Have you installed the proper anti-Gremlin devices?

R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760

On 11/10/2016 12:34 PM, William Miller wrote:
> Colleagues:
>
> I maintain an off-grid, 8 stack FX Outback system with 3 charge 
> controllers.  The system has been on line for about 6 years.  It got 
> upgraded about 7 months ago with 2 Mate3s.
>
> About a week ago the system shutdown, leaving the customer without 
> power.  A maintenance worker started a generator and power was 
> restored.  I did not hear about the situation for several days.
>
> A maintenance supervisor was dispatched yesterday to work with me over 
> the telephone to see if we could restart the system.  The system would 
> only run if the inverter output breakers were all off.
>
> I examined the system via Optics.  I was very surprised to see that 
> the system programming was absolutely scrambled. This was so much so 
> that even the stacking settings were wrong.  For example, inverter 2 
> was set as a Master, which we all know will crash any system.  Other 
> settings were also found with very random values.
>
> This system was running prior to last Friday, so the stacking at least 
> must have been right prior to the outage.  I am completely mystified 
> as to how this could have happened.
>
> I am in conversation with Outback who is taking this seriously.  I 
> have not heard back from them yet but I am curious if anyone else has 
> experienced this or anything similar.  I'd like to broaden my 
> knowledge on this situation to enhance my understanding and to share 
> any findings with the group.
>
> Thank you in advance for any input.
>
> William Miller
>
>
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