[RE-wrenches] Fortress Shutdown?

[Dave Angelini Offgrid Solar]

When I have had someone lose an SPD (I assume it was on DC buss) there 
is often latent damage (shows up later) to many of the devices.  In a Hi 
Rel mode, it is recommended to replace it all. Most offgrid is not that 
critical but try telling that to someone with rotten food.

The freezers and reefers are often full of spoils that smells never go 
away. YUK !

Dave Angelini Offgrid Solar
"we go where powerlines don't"
    [1]https://offgridsolar1.com/ [2]  [1]
e-mail  offgridsolar at sti.net
text 209 813 0060

On 2024-08-27 1:02 pm, Ray Walters via RE-wrenches wrote:

> Greetings All;
> 
> I have Fortress Battery installation with a pair of E Vault batteries 
> set up in a Master/ Slave arrangement.  Its been working fine for over 
> a year, but the customer just had a complete shutdown of the batteries 
> which left multiple freezers, and refrigerator with rotting food.   
> When he rebooted the batteries by turning on/off the main breaker on 
> each, they both come up and showed 100% SOC on the Master, and 98% on 
> the other.    There were no fault codes.   I just recently installed a 
> larger PV array, and so the system has been reaching full charge every 
> morning.
> 
> I have multiple calls in to Fortress, but not hearing anything back 
> from them at all.  We did have a lightning surge event a few months 
> ago, that damaged a Midnite SPD (first ever for me), and took out the 
> control board on the generator.  One VFX inverter has an LED out, but 
> we only use two inverters of the Quad stack, so I just switched to 
> another inverter.  All other equipment appeared fine: Midnite 
> controllers, rest of the Outback VFX quad stack, and never any issues 
> seen with the Fortress batteries.
> 
> The other odd thing, is since he rebooted the batteries, the system is 
> working fine, and recharging to 100%  by 9:30 am as before.    Is it 
> possible the Fortress BMS were damaged and are now having an 
> intermittent shutdown issue?  I did ask him to temporarily disconnect 
> the comms between batteries, in case it is a bad BMS on one, it will 
> isolate it from the other.
> 
> This is a tough one to figure out, since it hasn't happened again, and 
> there are no fault codes.  The Mate 3 shows a low frequency AC code, 
> but that's usually just from the generator shutting down.    Any help, 
> ideas, experiences, would be greatly appreciated.
> 
> Thanks,
> 
> Ray Walters
> Remote Solar
> 
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Links:
------
[1] http://members.sti.net/offgridsolar/
[2] https://offgridsolar1.com/
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