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I think the other poster's idea that the cables could have been
switched is possible. It could explain the Master getting
switched. I'm certainly not saying a complete internal glitch
wasn't it either. We've all seen our share of those as well.<br>
<pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
<div class="moz-cite-prefix">On 11/10/2016 9:26 PM, William Miller
wrote:<br>
</div>
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cite="mid:8C0B335F-C113-4BCB-B1DB-B27D6D7BD8F6@millersolar.com"
type="cite">
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<div>Ray:</div>
<div><br>
</div>
<div>I have no reason to believe anyone has been meddling. No one
knows the password. It does look like some serious glitch. </div>
<div><br>
</div>
<div>William</div>
<div><br>
On Nov 10, 2016, at 6:25 PM, Ray Walters <<a
moz-do-not-send="true" href="mailto:ray@solarray.com">ray@solarray.com</a>>
wrote:<br>
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It almost sounds like someone got in there and tried to
reprogram stuff themselves. Have you installed the proper
anti-Gremlin devices?<br>
<pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
<div class="moz-cite-prefix">On 11/10/2016 12:34 PM, William
Miller wrote:<br>
</div>
<blockquote
cite="mid:CAAgpqUOP7G46W2sw9eWt8TftNvv48N7Krgm0qtpwrc4jZ6fmxw@mail.gmail.com"
type="cite">
<div dir="ltr">Colleagues:
<div><br>
</div>
<div>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.</div>
<div><br>
</div>
<div>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.</div>
<div><br>
</div>
<div>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. </div>
<div><br>
</div>
<div>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.</div>
<div><br>
</div>
<div>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. </div>
<div><br>
</div>
<div>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.</div>
<div><br>
</div>
<div>Thank you in advance for any input.</div>
<div><br>
</div>
<div>William Miller</div>
</div>
<br>
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