Re: [RE-wrenches] Alternate LVD shutdown

Hi BillGiven that the LBCO would happen probably without solar or limited anyway the fm-80 is going to read battery volt because no current. Sorry I confused the issue previously Just calibrate the fm-80 with no solar production and you should be fine. JayOn Jan 7, 2025, at 4:26 PM, Bill Battagin v

Re: [RE-wrenches] Alternate LVD shutdown

Looks like a lot of unknowns.  Another head-spinning idea.One method to my wanting to use the FM80 might be to set a LBCO voltage too high just to simulate a shutdown, have a fluke on the battery bus and another on the aux output, load the battery to drop battery voltage.  When to aux activ

Re: [RE-wrenches] Alternate LVD shutdown

Hi Mac, yeah its confusing. As far as I know, the fndc only controls the FNDC functions. its own internal AUX, and AGS % which you can control through the inverter relay or the FNDC relay. All the other AUX relay functions are controlled by the device the AUX is in. But I could be mista

Re: [RE-wrenches] Alternate LVD shutdown

Hi Jay, Adding some nuance here, and I could be mistaken about all of the functions that get taken over by the FNDC voltage. When you calibrate the FNDC, it "shows" the voltage on the Mate as the FNDC voltage if there is an FNDC in the system. I also believe that it defaults to the FNDC voltage

Re: [RE-wrenches] Alternate LVD shutdown

Hi MacI’mGoing to disagree. The FNDC only provides its voltage it doesn’t populate to the other devices. You still have to set the inverter and CC separately, a poor design. Depends on which mate you’ve got where the fndc voltage is located. One reason I don’t like the CC voltage for aux control is

Re: [RE-wrenches] Alternate LVD shutdown

Hi Bill, Do you have a flexnet in the system? I assume that it wouldn't matter if the FM80 is calibrated but you will want the flexnet perfectly calibrated if you are using Lithium. It's a very annoying but worthwhile process. Don't drop the little nuts. Here is a paper on the procedure: http

Re: [RE-wrenches] Alternate LVD shutdown

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 tha

Re: [RE-wrenches] Alternate LVD shutdown

OK. Gotcha. I remember that now about simpliphi. Thanks for the clarification. On Thu, Jan 2, 2025, 9:08 AM 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, a

Re: [RE-wrenches] Alternate LVD shutdown

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

Re: [RE-wrenches] Alternate LVD shutdown

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 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: [RE-wrenches] Alternate LVD shutdown

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 pr

[RE-wrenches] Alternate LVD shutdown

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 th