[RE-wrenches] OB Charging/Comms Issues

Dave Angelini Offgrid Solar offgridsolar at sti.net
Fri Nov 8 12:58:09 PST 2024


Sounds like a basic generator issue. Use another gen for test !

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 2024-11-08 12:42 pm, Chris Sparadeo via RE-wrenches wrote:

> Hey wrenchers,
> 
> I have an off-grid customer with a pair of VFX 3648 inverters, a FM 100 
> charge controller and two eVault classics in open loop. The issue is 
> when the generator is charging the batteries, incoming amperage is all 
> over the place and periodically, gradually drops to 0A then ramps back 
> up. This is creating really long generator run times. When I turn off 
> PV input, same results. When I turn off both PV input and charge 
> controller output (turning off the CC entirely) the inverters hold a 
> steady charge. If I remove the charge controllers comms cable from the 
> hub, they both play nicely and charge cooperatively. This obviously 
> sounds like a communication issue, but unfortunately, without the help 
> of OB tech support, I am left speculating. I have checked all settings 
> with a fine comb and nothing looks to be out of place.  Has anyone 
> experienced something similar to this?
> 
> Thanks!
> 
> Chris Sparadeo
> 
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Links:
------
[1] http://members.sti.net/offgridsolar/
[2] https://offgridsolar1.com/
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