Hey Mac,
I've tried to calibrate the voltage displayed on the Mate
with the Fluke on the battery bus bars but it doesn't seem to take after
the adjustment in "calibrate". But The Flexmax 80 does calibrate
perfectly to the actual battery voltage and its in the FM80 aux landing
that I'm using for this go-around to shut down the inverter to save the
batteries.
'Manually' meaning.....?
Thanks,
Bill
Feather River Solar Electric
Bill Battagin, owner
4291 Nelson St. (Shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530-284-7849, 258-1641(cell)
CA. C10 Lic # 874049
Solar Powered since 1982
Home of the Sunny Side Up
On 1/2/2025 5:53 PM, Mac Lewis via RE-wrenches wrote:
Hi Bill,
Are all your voltages calibrated? Mate, Flexmax, FM80? Where are you
reading the voltages?
Does it work OK manually?
On Thu, Jan 2, 2025 at 12:08 PM Jay via RE-wrenches
<re-wrenches@lists.re-wrenches.org> wrote:
Simpliphy has a very high voltage LVD.
And the older OB can’t be programmed to those voltages
On Jan 2, 2025, at 10:04 AM, Tyrone Houck via RE-wrenches
<re-wrenches@lists.re-wrenches.org> wrote:
Forgive my ignorance but why won't the vfx lbco work for lithium?
On Thu, Jan 2, 2025, 8:19 AM Bill Battagin via RE-wrenches
<re-wrenches@lists.re-wrenches.org> wrote:
I am trying to use the "low battery disconnect" in aux mode
in a newly
installed OB FM80 CC for Li battery low voltage protection. I
can't use
the 19 year old OB VFX inverters for obvious reasons. The
plan is to run
the 12 volt output from the aux output to a NC relay to open
it at 50
VDC of the bank of SimpliPhi 3.8M batteries. 50 VDC is
SimpliPhi's
recommendation for LVD. The "output" of the relay would be
connected to
the VFX's ON-OFF landings of that little green terminal
block in the AC
side of the inverter and just act as a simple switch for the
inverter to
turn it off to save the batteries.
I'm using one of my newer FM80's as a test run
and have
programmed the voltages in Low Battery Disconnect mode and
then put it
in auto mode. However, as the CC goes below the voltage set
point, the
AUX output does not turn on (time set for 5 seconds), as
evidence in the
CC's home screen and by checking for 12V at the AUX terminal
block.
Any ideas of what I'm missing here to make this
work? I
know the other solution, thousands of $$ for new inverters
which would
be great but these folks have already invested quite a chuck
on array
replacement and charge controllers.
Thanks for any experience with this.
Bill
Feather River Solar Electric
Bill Battagin, owner
4291 Nelson St. (Shipping)
5575 Genesee Rd
<https://www.google.com/maps/search/5575+Genesee+Rd?entry=gmail&source=g>.
(USPS, UPS)
Taylorsville, CA 95983
530-284-7849, 258-1641(cell)
CA. C10 Lic # 874049
Solar Powered since 1982
Home of the Sunny Side Up
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Mac Lewis
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"Yo solo sé que no sé nada." -Sócrates
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