You could connect the Mate to the FM 100, but not the inverters. Screen,
no comms.
Ray
On 11/8/2024 2:28 PM, Chris Sparadeo via RE-wrenches wrote:
Hi Jay,
This is a new issue, but I don’t believe it’s generator related.
Without CC comms plugged in, generator is steadily charging. It was
serviced recently and has solid voltage and frequency under load.
I am all for leaving the comms disconnected, but unfortunately there
is no screen on the FM 100, so PV output wouldn’t be visible.
On Fri, Nov 8, 2024 at 4:14 PM jay via RE-wrenches
<re-wrenches@lists.re-wrenches.org> wrote:
Hi Chris,
Is this new or has it been always like this?
jay
> On Nov 8, 2024, at 1:42 PM, Chris Sparadeo via RE-wrenches
<re-wrenches@lists.re-wrenches.org> 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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